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Founder, 1929-2014
Speedy Bill
Since 1952
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Keith Black Hypereutectic Pistons set the benchmark in performance cast alloy piston technology. KB Pistons carry a vast assortment of compression ratios available in dish, flat top and dome styles for most Chevy or Ford V8s. For Claimer racers who are on a budget, KB Claimer Series pistons will meet the tough requirements that this racing class places on the piston.

Featured Products
KB Claimer Chevy 350 Hypereutectic Pistons, Flat Top, 5.7 Rod
KB Claimer Chevy 350 Hypereutectic Pistons, Flat Top, 5.7 Rod
x
            

These Keith Black economy (also known as economy pistons) feature coated skirts, wrist pin lockrings and T-5 hypereutectic construction. Can be used with either press fit or floating wrist pins (lockrings included).

Set of 8 for Chevy 350 c.i. (4.000" bore x 3.48" stroke). Does not include piston ring set. Use 5/64", 5/64", 3/16" piston rings (Ring Style A).

KB Claimer Piston Chart (GIF)

Ring Style Chart (GIF)

KB Claimer Chevy 350 Hypereutectic Pistons, .275 Dome, 5.7 Rod
KB Claimer Chevy 350 Hypereutectic Pistons, .275 Dome, 5.7 Rod
x
            

These Keith Black economy (also known as economy pistons) feature coated skirts, wrist pin lockrings and T-5 hypereutectic construction. Can be used with either press fit or floating wrist pins (lockrings included).

For Chevy 350 c.i. (4.000" bore x 3.48" stroke). Does not include piston ring set. Use 5/64", 5/64", 3/16" piston rings (Ring Style A).

KB Claimer Piston Chart (GIF)

Ring Style Chart (GIF)

KB Chevy 350 Hypereutectic Pistons, .150 Dome, 6.0 Rod
KB Chevy 350 Hypereutectic Pistons, .150 Dome, 6.0 Rod
x
            

Keith Black Hyperutectic pistons are favored for their improved power and reduced scuffing. The unique design & manufacturing processes combine to produce a rigid piston, which will rock less in the bore improving ring seal. These T-5 heat treated pistons also offer reduced thermal expansion, which allows you to run tighter clearances and allows the piston rings to seal better and minimize blow-by.

  • 390 Hypereutectic alloy
  • Fully machined crowns and valve reliefs
  • Drilled oil drain backs
  • Full floating wrist pins
  • Triple wound spiral locks
  • Reflective alloy allows 2% power increase
  • Quench dome technology minimizes deterioration
  • Zero deck quench designs
  • Lightweight wrist pins

For S/B Chevy 350 c.i. (4.000" bore x 3.48" stroke).

Ring Style Chart (GIF)

474-113 Instructions (PDF)

KB 2.3 Ford Hypereutectic Pistons, Flat Top, 5.700 Rod
KB 2.3 Ford Hypereutectic Pistons, Flat Top, 5.700 Rod
x
            

Keith Black hypereutectic pistons are T-6 heat treated and offer reduced scuffing and improved durability. They also allow you to run tighter clearances which makes more power. 

Available in .030" and .040" oversizes (stock 3.78" bore x 3.126" stroke). Use ring Style C. Pins included.

Ring Style Chart (GIF)

"KB Pistons" Page 1 of 2

  • KB Chevy 377/400 Hyperutectic Pistons, Flat Top, 5.7/5.565 Rod
    KB Chevy 377/400 Hyperutectic Pistons, Flat Top, 5.7/5.565 Rod
    x
                

    Keith Black Hyperutectic pistons are favored for their improved power and reduced scuffing. The unique design & manufacturing processes combine to produce a rigid piston, which will rock less in the bore improving ring seal. These T-5 heat treated pistons also offer reduced thermal expansion, which allows you to run tighter clearances and allows the piston rings to seal better and minimize blow-by.

    For Chevy 377 c.i. (4.125" bore x 3.48" stroke x 5.7" rod) and Chevy 400 c.i. (4.125" bore x 3.75" stroke x 5.565").

    • 390 Hypereutectic alloy
    • Fully machined crowns and valve reliefs
    • Drilled oil drain backs
    • Full floating wrist pins
    • Triple wound spiral locks
    • Reflective alloy allows 2% power increase
    • Quench dome technology minimizes deterioration
    • Zero deck quench designs
    • Lightweight wrist pins

    Ring Style Chart (GIF)

    474-172 Instructions (PDF)

  • KB Cadillac 500 Hypereutectic Flat Top Pistons
    KB Cadillac 500 Hypereutectic Flat Top Pistons
    x
                

    Stuff your Cadillac 500 with these high-strength Keith Black Series hypereutectic pistons for great performance and reliability.

    • Flat top
    • 13.1 C/R with 76cc head
    • 9.0 C/R with 120cc head
    • 6.75" Rod Length
  • KB Chevy 350 Hypereutectic Pistons, Dish, 5.7 Rod
    KB Chevy 350 Hypereutectic Pistons, Dish, 5.7 Rod
    x
                

    Keith Black Hyperutectic pistons are favored for their improved power and reduced scuffing. The unique design & manufacturing processes combine to produce a rigid piston, which will rock less in the bore improving ring seal. These T-5 heat treated pistons also offer reduced thermal expansion, which allows you to run tighter clearances and allows the piston rings to seal better and minimize blow-by.

    For S/B Chevy 350 c.i. (4.000" bore x 3.48" stroke).

    • 390 Hypereutectic alloy
    • Fully machined crowns and valve reliefs
    • Drilled oil drain backs
    • Full floating wrist pins
    • Triple wound spiral locks
    • Reflective alloy allows 2% power increase
    • Quench dome technology minimizes deterioration
    • Zero deck quench designs
    • Lightweight wrist pins

    Ring Style Chart (GIF)

    474-193 Instructions (PDF)

  • KB Chevy 350 Hypereutectic Pistons, .150 Dome, 6.0 Rod
    KB Chevy 350 Hypereutectic Pistons, .150 Dome, 6.0 Rod
    x
                

    Keith Black Hyperutectic pistons are favored for their improved power and reduced scuffing. The unique design & manufacturing processes combine to produce a rigid piston, which will rock less in the bore improving ring seal. These T-5 heat treated pistons also offer reduced thermal expansion, which allows you to run tighter clearances and allows the piston rings to seal better and minimize blow-by.

    • 390 Hypereutectic alloy
    • Fully machined crowns and valve reliefs
    • Drilled oil drain backs
    • Full floating wrist pins
    • Triple wound spiral locks
    • Reflective alloy allows 2% power increase
    • Quench dome technology minimizes deterioration
    • Zero deck quench designs
    • Lightweight wrist pins

    For S/B Chevy 350 c.i. (4.000" bore x 3.48" stroke).

    Ring Style Chart (GIF)

    474-113 Instructions (PDF)

  • KB Claimer Chevy 383 Hypereutectic Pistons, Flat Top, 6.0 Rod
    KB Claimer Chevy 383 Hypereutectic Pistons, Flat Top, 6.0 Rod
    x
                

    These Keith Black Claimer Pistons (also known as economy pistons) feature coated skirts, wrist pin lockrings and T-5 hypereutectic construction. Can be used with either press fit or floating wrist pins (lockrings included).

    Set of 8 for Chevy 383 c.i. (4.000" bore x 3.75" stroke). Does not include piston ring set. Use Ring Style C.

    KB Claimer Piston Chart (GIF)

    Ring Style Chart (GIF)

  • KB Claimer Chevy 350 Hypereutectic Pistons, .150 Dome, 5.7 Rod
    KB Claimer Chevy 350 Hypereutectic Pistons, .150 Dome, 5.7 Rod
    x
                

    These Keith Black economy (also known as economy pistons) feature coated skirts, wrist pin lockrings and T-5 hypereutectic construction. Can be used with either press fit or floating wrist pins (lockrings included).

    Set of 8 for Chevy 350 c.i. (4.000" bore x 3.48" stroke). Does not include piston ring set. Use 5/64", 5/64", 3/16" piston rings (Ring Style A).

    KB Claimer Piston Chart (GIF)

    Ring Style Chart (GIF)

  • KB Chevy 400 Hyperutectic Pistons, Flat Top, 6.0 Rod
    KB Chevy 400 Hyperutectic Pistons, Flat Top, 6.0 Rod
    x
                

    Keith Black Hyperutectic pistons are favored for their improved power and reduced scuffing. The unique design & manufacturing processes combine to produce a rigid piston, which will rock less in the bore improving ring seal. These T-5 heat treated pistons also offer reduced thermal expansion, which allows you to run tighter clearances and allows the piston rings to seal better and minimize blow-by.

    • 390 Hypereutectic alloy
    • Fully machined crowns and valve reliefs
    • Drilled oil drain backs
    • Full floating wrist pins
    • Triple wound spiral locks
    • Reflective alloy allows 2% power increase
    • Quench dome technology minimizes deterioration
    • Zero deck quench designs
    • Lightweight wrist pins

    For Chevy 400 c.i. (4.125" bore x 3.75" stroke).

    Ring Style Chart (GIF)

    474-128 Instructions (PDF)

  • KB Chevy 377/400 Hypereutectic Pistons, .150 Dome, 5.7/5.565 Rod
    KB Chevy 377/400 Hypereutectic Pistons, .150 Dome, 5.7/5.565 Rod
    x
                

    Keith Black Hyperutectic pistons are favored for their improved power and reduced scuffing. The unique design & manufacturing processes combine to produce a rigid piston, which will rock less in the bore improving ring seal. These T-5 heat treated pistons also offer reduced thermal expansion, which allows you to run tighter clearances and allows the piston rings to seal better and minimize blow-by.

    • 390 Hypereutectic alloy
    • Fully machined crowns and valve reliefs
    • Drilled oil drain backs
    • Full floating wrist pins
    • Triple wound spiral locks
    • Reflective alloy allows 2% power increase
    • Quench dome technology minimizes deterioration
    • Zero deck quench designs
    • Lightweight wrist pins

    For Chevy 377 c.i. (4.125" bore x 3.48" stroke x 5.7" rod) and Chevy 400 c.i. (4.125" bore x 3.75" stroke x 5.565").  . 

    Ring Style Chart (GIF)

    474-182 Instructions (PDF)

  • KB Chevy 400 Hyperutectic Pistons, .150 Dome, 6.0 Rod
    KB Chevy 400 Hyperutectic Pistons, .150 Dome, 6.0 Rod
    x
                

    Keith Black Hyperutectic pistons are favored for their improved power and reduced scuffing. The unique design & manufacturing processes combine to produce a rigid piston, which will rock less in the bore improving ring seal. These T-5 heat treated pistons also offer reduced thermal expansion, which allows you to run tighter clearances and allows the piston rings to seal better and minimize blow-by.

    • 390 Hypereutectic alloy
    • Fully machined crowns and valve reliefs
    • Drilled oil drain backs
    • Full floating wrist pins
    • Triple wound spiral locks
    • Reflective alloy allows 2% power increase
    • Quench dome technology minimizes deterioration
    • Zero deck quench designs
    • Lightweight wrist pins

    For Chevy 400 c.i. (4.125" bore x 3.75" stroke).

    Ring Style Chart (GIF)

    474-129 Instructions (PDF)

  • KB Chevy 400 Hyperutectic Pistons, .100 Dome, 5.7 Rod
    KB Chevy 400 Hyperutectic Pistons, .100 Dome, 5.7 Rod
    x
                

    Keith Black Hyperutectic pistons are favored for their improved power and reduced scuffing. The unique design & manufacturing processes combine to produce a rigid piston, which will rock less in the bore improving ring seal. These T-5 heat treated pistons also offer reduced thermal expansion, which allows you to run tighter clearances and allows the piston rings to seal better and minimize blow-by.

    • 390 Hypereutectic alloy
    • Fully machined crowns and valve reliefs
    • Drilled oil drain backs
    • Full floating wrist pins
    • Triple wound spiral locks
    • Reflective alloy allows 2% power increase
    • Quench dome technology minimizes deterioration
    • Zero deck quench designs
    • Lightweight wrist pins

    For Chevy 400 c.i. (4.125" bore x 3.75" stroke).

    Ring Style Chart (GIF)

    474-127 Instructions (PDF)

  • KB Chevy 383 Hypereutectic Pistons, .100 Dome, 5.7 Rod
    KB Chevy 383 Hypereutectic Pistons, .100 Dome, 5.7 Rod
    x
                

    Keith Black Hypereutectic pistons are favored for their improved power and reduced scuffing. The unique design & manufacturing processes combine to produce a rigid piston, which will rock less in the bore improving ring seal. These T-5 heat treated pistons also offer reduced thermal expansion, which allows you to run tighter clearances and allows the piston rings to seal better and minimize blow-by.

    • 390 Hypereutectic alloy
    • Fully machined crowns and valve reliefs
    • Drilled oil drain backs
    • Full floating wrist pins
    • Triple wound spiral locks
    • Reflective alloy allows 2% power increase
    • Quench dome technology minimizes deterioration
    • Zero deck quench designs
    • Lightweight wrist pins

    For S/B Chevy 383 c.i. (4.000" bore x 3.75" stroke).

    Ring Style Chart (GIF)

    474-111 Instructions (PDF)

  • KB Chevy 383 Hypereutectic Pistons, Flat Top, 5.7 Rod
    KB Chevy 383 Hypereutectic Pistons, Flat Top, 5.7 Rod
    x
                

    Keith Black Hypereutectic pistons are favored for their improved power and reduced scuffing. The unique design & manufacturing processes combine to produce a rigid piston, which will rock less in the bore improving ring seal. These T-5 heat treated pistons also offer reduced thermal expansion, which allows you to run tighter clearances and allows the piston rings to seal better and minimize blow-by.

    For S/B Chevy 383 c.i. (4.000" bore x 3.75" stroke).

    • 390 Hypereutectic alloy
    • Fully machined crowns and valve reliefs
    • Drilled oil drain backs
    • Full floating wrist pins
    • Triple wound spiral locks
    • Reflective alloy allows 2% power increase
    • Quench dome technology minimizes deterioration
    • Zero deck quench designs
    • Lightweight wrist pins

    Ring Style Chart (GIF)

    474-134 Instructions (PDF)

  • KB Chevy 377 Hypereutectic Pistons, Dish, 6.0 Inch Rod
    KB Chevy 377 Hypereutectic Pistons, Dish, 6.0 Inch Rod
    x
                

    Keith Black Hyperutectic pistons are favored for their improved power and reduced scuffing. The unique design & manufacturing processes combine to produce a rigid piston, which will rock less in the bore improving ring seal. These T-5 heat treated pistons also offer reduced thermal expansion, which allows you to run tighter clearances and allows the piston rings to seal better and minimize blow-by.

    For S/B Chevy 377 c.i. (4.125" bore x 3.48" stroke). 

    • 390 Hypereutectic alloy
    • Fully machined crowns and valve reliefs
    • Drilled oil drain backs
    • Full floating wrist pins
    • Triple wound spiral locks
    • Reflective alloy allows 2% power increase
    • Quench dome technology minimizes deterioration
    • Zero deck quench designs
    • Lightweight wrist pins

    Ring Style Chart (GIF)

    474-350 Instructions (PDF)

  • KB Claimer Chevy 383 Hypereutectic Pistons, Flat Top, 5.7 Rod
    KB Claimer Chevy 383 Hypereutectic Pistons, Flat Top, 5.7 Rod
    x
                

    These Keith Black Claimer Pistons (also known as economy pistons) feature coated skirts, wrist pin lockrings and T-5 hypereutectic construction. Can be used with either press fit or floating wrist pins (lockrings included).

    Set of 8 for Chevy 383 c.i. (4.000" bore x 3.75" stroke). Does not include piston ring set. Use Ring Style A.

    KB Claimer Piston Chart (GIF)

    Ring Style Chart (GIF)

  • KB Chevy 377 Hypereutectic Pistons, .150 Dome, 6.0 Rod
    KB Chevy 377 Hypereutectic Pistons, .150 Dome, 6.0 Rod
    x
                

    Keith Black Hyperutectic pistons are favored for their improved power and reduced scuffing. The unique design & manufacturing processes combine to produce a rigid piston, which will rock less in the bore improving ring seal. These T-5 heat treated pistons also offer reduced thermal expansion, which allows you to run tighter clearances and allows the piston rings to seal better and minimize blow-by.

    • 390 Hypereutectic alloy
    • Fully machined crowns and valve reliefs
    • Drilled oil drain backs
    • Full floating wrist pins
    • Triple wound spiral locks
    • Reflective alloy allows 2% power increase
    • Quench dome technology minimizes deterioration
    • Zero deck quench designs
    • Lightweight wrist pins

    For S/B Chevy 377 c.i. (4.125" bore x 3.48" stroke). 

    Ring Style Chart (GIF)

    474-350 Instructions (PDF)

  • KB 2.3 Ford Hypereutectic Pistons, Flat Top, 5.205 Rod
    KB 2.3 Ford Hypereutectic Pistons, Flat Top, 5.205 Rod
    x
                

    Keith Black hypereutectic pistons are T-6 heat treated and offer reduced scuffing and improved durability. They also allow you to run tighter clearances which makes more power. 

    Available in .030" and .040" oversizes (stock 3.78" bore x 3.126" stroke). Use ring Style C. Pins included.

    Ring Style Chart (GIF)

  • KB Chevy 400 Hyperutectic Pistons, Flat Top, 5.7 Rod
    KB Chevy 400 Hyperutectic Pistons, Flat Top, 5.7 Rod
    x
                

    Keith Black Hyperutectic pistons are favored for their improved power and reduced scuffing. The unique design & manufacturing processes combine to produce a rigid piston, which will rock less in the bore improving ring seal. These T-5 heat treated pistons also offer reduced thermal expansion, which allows you to run tighter clearances and allows the piston rings to seal better and minimize blow-by.

    • 390 Hypereutectic alloy
    • Fully machined crowns and valve reliefs
    • Drilled oil drain backs
    • Full floating wrist pins
    • Triple wound spiral locks
    • Reflective alloy allows 2% power increase
    • Quench dome technology minimizes deterioration
    • Zero deck quench designs
    • Lightweight wrist pins

    For Chevy 400 c.i. (4.125" bore x 3.75" stroke).

    Ring Style Chart (GIF)

    474-125 Instructions (PDF)

  • KB Claimer Chevy 400 Hypereutectic Pistons, Flat Top, 5.7 Rod
    KB Claimer Chevy 400 Hypereutectic Pistons, Flat Top, 5.7 Rod
    x
                

    These Keith Black Claimer pistons (also known as economy pistons) feature coated skirts, wrist pin lockrings and T-5 hypereutectic construction. Can be used with either press fit or floating wrist pins (lockrings included).

    Set of 8 for Chevy 400 c.i. (4.125" bore x 3.75" stroke). Does not include piston ring set. Use 5/64", 5/64", 3/16" piston rings (Ring Style A).

    KB Claimer Piston Chart (GIF)

    Ring Style Chart (GIF)

  • KB Chevy 350 Hypereutectic Pistons, .388 Dome, 5.7 Rod
    KB Chevy 350 Hypereutectic Pistons, .388 Dome, 5.7 Rod
    x
                

    Keith Black Hyperutectic pistons are favored for their improved power and reduced scuffing. The unique design & manufacturing processes combine to produce a rigid piston, which will rock less in the bore improving ring seal. These T-5 heat treated pistons also offer reduced thermal expansion, which allows you to run tighter clearances and allows the piston rings to seal better and minimize blow-by.

    • 390 Hypereutectic alloy
    • Fully machined crowns and valve reliefs
    • Drilled oil drain backs
    • Full floating wrist pins
    • Triple wound spiral locks
    • Reflective alloy allows 2% power increase
    • Quench dome technology minimizes deterioration
    • Zero deck quench designs
    • Lightweight wrist pins

    For S/B Chevy 350 c.i. (4.000" bore x 3.48" stroke).

    Ring Style Chart (GIF)

    474-213 Instructions (PDF)

  • KB 2.3 Ford Hypereutectic Pistons, Flat Top, 5.700 Rod
    KB 2.3 Ford Hypereutectic Pistons, Flat Top, 5.700 Rod
    x
                

    Keith Black hypereutectic pistons are T-6 heat treated and offer reduced scuffing and improved durability. They also allow you to run tighter clearances which makes more power. 

    Available in .030" and .040" oversizes (stock 3.78" bore x 3.126" stroke). Use ring Style C. Pins included.

    Ring Style Chart (GIF)

  • KB Ford 347 Hypereutectic Pistons, Flat Top, 5.4 Rod
    KB Ford 347 Hypereutectic Pistons, Flat Top, 5.4 Rod
    x
                

    Keith Black Hypereutectic pistons are T-6 heat treated and offer reduced scuffing and improved durability over stock replacement pistons. They also allow you to run tighter clearances because of reduced thermal expansion, which means more race winning power.

    • 390 Hypereutectic alloy
    • Fully machined crowns and valve reliefs
    • Drilled oil drain backs
    • Full floating wrist pins
    • Triple wound spiral locks
    • Reflective alloy allows 2% power increase
    • Quench dome technology minimizes deterioration
    • Zero deck quench designs

    For Ford 347 c.i. (4.00" bore x 3.40" stroke). Use piston ring Style C (1/16", 1/16", 3/16").

    Ring Style Chart (GIF)

    474-246 Instructions (PDF)

  • KB Chevy 377 Hypereutectic Pistons, Flat, 6.0 Rod
    KB Chevy 377 Hypereutectic Pistons, Flat, 6.0 Rod
    x
                

    Keith Black Hyperutectic pistons are favored for their improved power and reduced scuffing. The unique design & manufacturing processes combine to produce a rigid piston, which will rock less in the bore improving ring seal. These T-5 heat treated pistons also offer reduced thermal expansion, which allows you to run tighter clearances and allows the piston rings to seal better and minimize blow-by.

    • 390 Hypereutectic alloy
    • Fully machined crowns and valve reliefs
    • Drilled oil drain backs
    • Full floating wrist pins
    • Triple wound spiral locks
    • Reflective alloy allows 2% power increase
    • Quench dome technology minimizes deterioration
    • Zero deck quench designs
    • Lightweight wrist pins

    For S/B Chevy 377 c.i. (4.125" bore x 3.48" stroke). 

    Ring Style Chart (GIF)

    474-194 Instructions (PDF)

  • KB Ford 396 Hypereutectic Pistons, Dish, 5.956 Rod
    KB Ford 396 Hypereutectic Pistons, Dish, 5.956 Rod
    x
                

    Keith Black Hypereutectic pistons are T-6 heat treated and offer reduced scuffing and improved durability over stock replacement pistons. They also allow you to run tighter clearances because of reduced thermal expansion, which means more race winning power.

    • 390 Hypereutectic alloy
    • Fully machined crowns and valve reliefs
    • Drilled oil drain backs
    • Full floating wrist pins
    • Triple wound spiral locks
    • Reflective alloy allows 2% power increase
    • Quench dome technology minimizes deterioration
    • Zero deck quench designs

    For Ford 396 c.i. (4.00" bore x 3.85" stroke). Use piston ring Style A (5/64", 5/64", 3/16").

    Ring Style Chart (GIF)

    474-364 Instructions (PDF)

  • KB Chevy 383 Hypereutectic Pistons, Dish, 6.0 Inch Rod
    KB Chevy 383 Hypereutectic Pistons, Dish, 6.0 Inch Rod
    x
                

    Keith Black Hypereutectic pistons are favored for their improved power and reduced scuffing. The unique design & manufacturing processes combine to produce a rigid piston, which will rock less in the bore improving ring seal. These T-5 heat treated pistons also offer reduced thermal expansion, which allows you to run tighter clearances and allows the piston rings to seal better and minimize blow-by.

    For S/B Chevy 383 c.i. (4.000" bore x 3.75" stroke).

    • 390 Hypereutectic alloy
    • Fully machined crowns and valve reliefs
    • Drilled oil drain backs
    • Full floating wrist pins
    • Triple wound spiral locks
    • Reflective alloy allows 2% power increase
    • Quench dome technology minimizes deterioration
    • Zero deck quench designs
    • Lightweight wrist pins

    Ring Style Chart (GIF)

    474-164 Instructions (PDF)

  • KB Chevy 350 Hypereutectic Pistons, Flat Top, 6.0 Rod
    KB Chevy 350 Hypereutectic Pistons, Flat Top, 6.0 Rod
    x
                

    Keith Black Hyperutectic pistons are favored for their improved power and reduced scuffing. The unique design & manufacturing processes combine to produce a rigid piston, which will rock less in the bore improving ring seal. These T-5 heat treated pistons also offer reduced thermal expansion, which allows you to run tighter clearances and allows the piston rings to seal better and minimize blow-by.

    For S/B Chevy 350 c.i. (4.000" bore x 3.48" stroke).

    • 390 Hypereutectic alloy
    • Fully machined crowns and valve reliefs
    • Drilled oil drain backs
    • Full floating wrist pins
    • Triple wound spiral locks
    • Reflective alloy allows 2% power increase
    • Quench dome technology minimizes deterioration
    • Zero deck quench designs
    • Lightweight wrist pins

    Ring Style Chart (GIF)

    474-112 Instructions (PDF)

  • KB Chevy 305 Hypereutectic Pistons, .100 Dome, 5.7 Rod
    KB Chevy 305 Hypereutectic Pistons, .100 Dome, 5.7 Rod
    x
                

    Keith Black Hyperutectic pistons are favored for their improved power and reduced scuffing. The unique design & manufacturing processes combine to produce a rigid piston, which will rock less in the bore improving ring seal. These T-5 heat treated pistons also offer reduced thermal expansion, which allows you to run tighter clearances and allows the piston rings to seal better and minimize blow-by.

    • 390 Hypereutectic alloy
    • Fully machined crowns and valve reliefs
    • Drilled oil drain backs
    • Full floating wrist pins
    • Triple wound spiral locks
    • Reflective alloy allows 2% power increase
    • Quench dome technology minimizes deterioration
    • Zero deck quench designs
    • Lightweight wrist pins

    For S/B Chevy 305 c.i. (3.736" bore x 3.48" stroke).

    Ring Style Chart (GIF)

    474-144 Instructions (PDF)

  • KB Chevy 383 Hypereutectic Pistons, Dish, 5.7 Inch Rod
    KB Chevy 383 Hypereutectic Pistons, Dish, 5.7 Inch Rod
    x
                

    Keith Black Hypereutectic pistons are favored for their improved power and reduced scuffing. The unique design & manufacturing processes combine to produce a rigid piston, which will rock less in the bore improving ring seal. These T-5 heat treated pistons also offer reduced thermal expansion, which allows you to run tighter clearances and allows the piston rings to seal better and minimize blow-by.

    For S/B Chevy 383 c.i. (4.000" bore x 3.75" stroke).

    • 390 Hypereutectic alloy
    • Fully machined crowns and valve reliefs
    • Drilled oil drain backs
    • Full floating wrist pins
    • Triple wound spiral locks
    • Reflective alloy allows 2% power increase
    • Quench dome technology minimizes deterioration
    • Zero deck quench designs
    • Lightweight wrist pins

    Ring Style Chart (GIF)

    474-135 Instructions (PDF)

  • KB Chevy 383 Hypereutectic Pistons, Flat Top, 6.0 Rod
    KB Chevy 383 Hypereutectic Pistons, Flat Top, 6.0 Rod
    x
                

    Keith Black Hypereutectic pistons are favored for their improved power and reduced scuffing. The unique design & manufacturing processes combine to produce a rigid piston, which will rock less in the bore improving ring seal. These T-5 heat treated pistons also offer reduced thermal expansion, which allows you to run tighter clearances and allows the piston rings to seal better and minimize blow-by.

    • 390 Hypereutectic alloy
    • Fully machined crowns and valve reliefs
    • Drilled oil drain backs
    • Full floating wrist pins
    • Triple wound spiral locks
    • Reflective alloy allows 2% power increase
    • Quench dome technology minimizes deterioration
    • Zero deck quench designs
    • Lightweight wrist pins

    For S/B Chevy 383 c.i. (4.000" bore x 3.75" stroke).

    Ring Style Chart (GIF)

    474-122 Instructions (PDF)

  • KB Claimer Chevy 350 Hypereutectic Pistons, Flat Top, 5.7 Rod
    KB Claimer Chevy 350 Hypereutectic Pistons, Flat Top, 5.7 Rod
    x
                

    These Keith Black economy (also known as economy pistons) feature coated skirts, wrist pin lockrings and T-5 hypereutectic construction. Can be used with either press fit or floating wrist pins (lockrings included).

    Set of 8 for Chevy 350 c.i. (4.000" bore x 3.48" stroke). Does not include piston ring set. Use 5/64", 5/64", 3/16" piston rings (Ring Style A).

    KB Claimer Piston Chart (GIF)

    Ring Style Chart (GIF)

  • KB Chevy 350 Hypereutectic Pistons, .200 Dome, 5.7 Rod
    KB Chevy 350 Hypereutectic Pistons, .200 Dome, 5.7 Rod
    x
                

    Keith Black Hyperutectic pistons are favored for their improved power and reduced scuffing. The unique design & manufacturing processes combine to produce a rigid piston, which will rock less in the bore improving ring seal. These T-5 heat treated pistons also offer reduced thermal expansion, which allows you to run tighter clearances and allows the piston rings to seal better and minimize blow-by.

    • 390 Hypereutectic alloy
    • Fully machined crowns and valve reliefs
    • Drilled oil drain backs
    • Full floating wrist pins
    • Triple wound spiral locks
    • Reflective alloy allows 2% power increase
    • Quench dome technology minimizes deterioration
    • Zero deck quench designs
    • Lightweight wrist pins

    For S/B Chevy 350 c.i. (4.000" bore x 3.48" stroke).

    Ring Style Chart (GIF)

    474-180 Instructions (PDF)

  • KB Chevy 400 Hyperutectic Pistons, Dish, 5.7 Inch Rod
    KB Chevy 400 Hyperutectic Pistons, Dish, 5.7 Inch Rod
    x
                

    Keith Black Hyperutectic pistons are favored for their improved power and reduced scuffing. The unique design & manufacturing processes combine to produce a rigid piston, which will rock less in the bore improving ring seal. These T-5 heat treated pistons also offer reduced thermal expansion, which allows you to run tighter clearances and allows the piston rings to seal better and minimize blow-by.

    For Chevy 400 c.i. (4.125" bore x 3.75" stroke).

    • 390 Hypereutectic alloy
    • Fully machined crowns and valve reliefs
    • Drilled oil drain backs
    • Full floating wrist pins
    • Triple wound spiral locks
    • Reflective alloy allows 2% power increase
    • Quench dome technology minimizes deterioration
    • Zero deck quench designs
    • Lightweight wrist pins

    Ring Style Chart (GIF)

    474-168 Instructions (PDF)

  • KB Chevy 305 Hypereutectic Pistons, Flat Top, 5.7 Rod
    KB Chevy 305 Hypereutectic Pistons, Flat Top, 5.7 Rod
    x
                

    Keith Black Hyperutectic pistons are favored for their improved power and reduced scuffing. The unique design & manufacturing processes combine to produce a rigid piston, which will rock less in the bore improving ring seal. These T-5 heat treated pistons also offer reduced thermal expansion, which allows you to run tighter clearances and allows the piston rings to seal better and minimize blow-by.

    For S/B Chevy 305 c.i. (3.736" bore x 3.48" stroke).

    • 390 Hypereutectic alloy
    • Fully machined crowns and valve reliefs
    • Drilled oil drain backs
    • Full floating wrist pins
    • Triple wound spiral locks
    • Reflective alloy allows 2% power increase
    • Quench dome technology minimizes deterioration
    • Zero deck quench designs
    • Lightweight wrist pins

    Ring Style Chart (GIF)

    474-143 Instructions (PDF)

  • KB Chevy 400 Hyperutectic Pistons, Dish, 6.0 Inch Rod
    KB Chevy 400 Hyperutectic Pistons, Dish, 6.0 Inch Rod
    x
                

    Keith Black Hyperutectic pistons are favored for their improved power and reduced scuffing. The unique design & manufacturing processes combine to produce a rigid piston, which will rock less in the bore improving ring seal. These T-5 heat treated pistons also offer reduced thermal expansion, which allows you to run tighter clearances and allows the piston rings to seal better and minimize blow-by.

    For Chevy 400 c.i. (4.125" bore x 3.75" stroke).

    • 390 Hypereutectic alloy
    • Fully machined crowns and valve reliefs
    • Drilled oil drain backs
    • Full floating wrist pins
    • Triple wound spiral locks
    • Reflective alloy allows 2% power increase
    • Quench dome technology minimizes deterioration
    • Zero deck quench designs
    • Lightweight wrist pins

    Ring Style Chart (GIF)

    474-130 Instructions (PDF)

  • KB Chevy 350 Hypereutectic Pistons, Dish, 6.0 Inch Rod
    KB Chevy 350 Hypereutectic Pistons, Dish, 6.0 Inch Rod
    x
                

    Keith Black Hyperutectic pistons are favored for their improved power and reduced scuffing. The unique design & manufacturing processes combine to produce a rigid piston, which will rock less in the bore improving ring seal. These T-5 heat treated pistons also offer reduced thermal expansion, which allows you to run tighter clearances and allows the piston rings to seal better and minimize blow-by.

    For S/B Chevy 350 c.i. (4.000" bore x 3.48" stroke).

    • 390 Hypereutectic alloy
    • Fully machined crowns and valve reliefs
    • Drilled oil drain backs
    • Full floating wrist pins
    • Triple wound spiral locks
    • Reflective alloy allows 2% power increase
    • Quench dome technology minimizes deterioration
    • Zero deck quench designs
    • Lightweight wrist pins

    Ring Style Chart (GIF)

    474-169 Instructions (PDF)

  • KB Claimer Chevy 377/400 Hypereutectic Pistons, Flat Top, 5.7/5.565 Rod
    KB Claimer Chevy 377/400 Hypereutectic Pistons, Flat Top, 5.7/5.565 Rod
    x
                

    These Keith Black Claimer pistons (also known as economy pistons) feature coated skirts, wrist pin lockrings and T-5 hypereutectic construction. Can be used with either press fit or floating wrist pins (lockrings included).

    Set of 8 for Chevy 377 c.i. (4.125" bore x 3.48" stroke x 5.7" rod) and Chevy 400 c.i. (4.125" bore x 3.75" stroke x 5.565"). Does not include piston ring set. Use 5/64", 5/64", 3/16" piston rings (Ring Style A).

    KB Claimer Piston Chart (GIF)

    Ring Style Chart (GIF)

  • KB Ford 302 Hypereutectic Pistons, .200 Dome, 5.09 Rod
    KB Ford 302 Hypereutectic Pistons, .200 Dome, 5.09 Rod
    x
                

    Keith Black Hypereutectic pistons are T-6 heat treated and offer reduced scuffing and improved durability over stock replacement pistons. They also allow you to run tighter clearances because of reduced thermal expansion, which means more race winning power.

    • 390 Hypereutectic alloy
    • Fully machined crowns and valve reliefs
    • Drilled oil drain backs
    • Full floating wrist pins
    • Triple wound spiral locks
    • Reflective alloy allows 2% power increase
    • Quench dome technology minimizes deterioration
    • Zero deck quench designs

    For Ford 302 c.i. (4.00" bore x 3.00" stroke). Use piston ring Style A (5/64", 5/64", 3/16").

    Ring Style Chart (GIF)

    474-116 Instructions (PDF)

  • KB Chevy 383 Hypereutectic Pistons, .150 Dome, 6.0 Rod
    KB Chevy 383 Hypereutectic Pistons, .150 Dome, 6.0 Rod
    x
                

    Keith Black Hypereutectic pistons are favored for their improved power and reduced scuffing. The unique design & manufacturing processes combine to produce a rigid piston, which will rock less in the bore improving ring seal. These T-5 heat treated pistons also offer reduced thermal expansion, which allows you to run tighter clearances and allows the piston rings to seal better and minimize blow-by.

    • 390 Hypereutectic alloy
    • Fully machined crowns and valve reliefs
    • Drilled oil drain backs
    • Full floating wrist pins
    • Triple wound spiral locks
    • Reflective alloy allows 2% power increase
    • Quench dome technology minimizes deterioration
    • Zero deck quench designs
    • Lightweight wrist pins

    For S/B Chevy 383 c.i. (4.000" bore x 3.75" stroke).

    Ring Style Chart (GIF)

    474-123 Instructions (PDF)

  • KB Claimer Chevy 350 Hypereutectic Pistons, .275 Dome, 5.7 Rod
    KB Claimer Chevy 350 Hypereutectic Pistons, .275 Dome, 5.7 Rod
    x
                

    These Keith Black economy (also known as economy pistons) feature coated skirts, wrist pin lockrings and T-5 hypereutectic construction. Can be used with either press fit or floating wrist pins (lockrings included).

    For Chevy 350 c.i. (4.000" bore x 3.48" stroke). Does not include piston ring set. Use 5/64", 5/64", 3/16" piston rings (Ring Style A).

    KB Claimer Piston Chart (GIF)

    Ring Style Chart (GIF)

  • KB Claimer Chevy 350 Hypereutectic Pistons, Flat Top, 6.0 Rod
    KB Claimer Chevy 350 Hypereutectic Pistons, Flat Top, 6.0 Rod
    x
                

    These Keith Black economy (also known as economy pistons) feature coated skirts, wrist pin lockrings and T-5 hypereutectic construction. Can be used with either press fit or floating wrist pins (lockrings included).

    set of 8 for Chevy 350 c.i. (4.000" bore x 3.48" stroke). Does not include piston ring set. Use 5/64", 5/64", 3/16" piston rings (Ring Style A).

    • Comp Height 5.7" Rod -  1.565
    • Comp Height 6.0" Rod -  1.265
    • Pin Diameter -  0.9272

    KB Claimer Piston Chart (GIF)

    Ring Style Chart (GIF)

  • KB Ford 351W Hypereutectic Pistons, Flat Top, 5.956 Rod
    KB Ford 351W Hypereutectic Pistons, Flat Top, 5.956 Rod
    x
                

    Keith Black Hypereutectic pistons are T-6 heat treated and offer reduced scuffing and improved durability over stock replacement pistons. They also allow you to run tighter clearances because of reduced thermal expansion, which means more race winning power.

    For Ford 3351W c.i. (4.00" bore x 3.50" stroke). Use piston ring Style A (5/64", 5/64", 3/16").

    • 390 Hypereutectic alloy
    • Fully machined crowns and valve reliefs
    • Drilled oil drain backs
    • Full floating wrist pins
    • Triple wound spiral locks
    • Reflective alloy allows 2% power increase
    • Quench dome technology minimizes deterioration
    • Zero deck quench designs

    Ring Style Chart (GIF)

    474-151 Instructions (PDF)

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