Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
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Piston Sets

Shop Piston Sets At Speedway Motors

Pistons keep your engine pumping out all the horsepower you built your engine to perform with. Without the right quality piston set, you are not getting everything you can out of your engine. Speedway Motors has the largest in-stock inventory of pistons with various bore and stroke sizes. Choose from a selection of hypereutectic pistons, flat top pistons, dome top pistons, and more available in quality cast aluminum or forged aluminum. No matter whether you are working on a budget, building a high-horsepower engine, or just want a strong, durable piston, Speedway Motors has the piston set you need in stock and ready to ship today!

Featured Products
  • Offenhauser 39-53 Flathead Ford 4-Ring Pistons, 3.75 Stroke/3.248 Bore
    Offenhauser 39-53 Flathead Ford 4-Ring Pistons, 3.75 Stroke/3.248 Bore
    (Part #56042600)
    x
                

    Original Flathead pistons used four rings, were somewhat round, had questionable wrist pins and locks and were made of cast iron. These pressure-cast aluminum pistons share the four-ring design, but are cam ground and use modern steel wrist pins and real snap rings. They’re a great upgrade when rebuilding your 1939-1953 flathead Ford or Mercury V8 engine.

    The original bore size was 3.188", which makes these .060" oversize. Sold in sets of eight.

    • Original 4-ring design
    • Pressure cast aluminum construction provides great strength and durability
    • Precision cam ground
    • Modern steel wrist pins
    • Snap ring style retainer clips
  • KB Claimer Chevy 350 Hypereutectic Pistons, Flat Top, 6.0 Rod
    KB Claimer Chevy 350 Hypereutectic Pistons, Flat Top, 6.0 Rod
    (Part #4749908)
    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 Claimer Chevy 350 Hypereutectic Pistons, Flat Top, 5.7 Rod
    KB Claimer Chevy 350 Hypereutectic Pistons, Flat Top, 5.7 Rod
    (Part #4749902)
    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)

  • 1939-53 Flathead Ford V8 4-Ring Pistons, 3-3/4 Stroke, .060 Over
    1939-53 Flathead Ford V8 4-Ring Pistons, 3-3/4 Stroke, .060 Over
    (Part #91015900)
    x
                

    Original flathead pistons used four rings, were somewhat round, had questionable wrist pins and locks and were made of cast iron. These pressure-cast aluminum pistons share the four-ring design, but are cam ground and use modern steel wrist pins and real snap rings. They’re a great upgrade when rebuilding your 1939-1953 flathead Ford or Mercury V8 engine.

    Sizing based on original 3.188" bore. Fits .060" overbore size and 3.75" stroke crank. Sold as a set of 8.

    • Original 4-ring design
    • Pressure cast aluminum construction provides great strength and durability
    • Precision cam ground
    • Modern steel wrist pins
    • Snap ring style retainer clips
  • Flathead Ford Aluminum 3-Ring Pistons, 4.00 Stroke, 3.3125 Bore
    Flathead Ford Aluminum 3-Ring Pistons, 4.00 Stroke, 3.3125 Bore
    (Part #9101091)
    x
                

    These Flathead Ford 3 ring pistons are made of A332 aluminum and heat treated to a T-6 spec. They have a 5/64" first and second ring groove and the oil groove is 3/16". 

    Rings sold separately.
  • KB 2.3 Ford Hypereutectic Pistons, Flat Top, 5.700 Rod
    KB 2.3 Ford Hypereutectic Pistons, Flat Top, 5.700 Rod
    (Part #474218)
    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 2.3 Ford Hypereutectic Pistons, Flat Top, 5.205 Rod
    KB 2.3 Ford Hypereutectic Pistons, Flat Top, 5.205 Rod
    (Part #474217)
    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)

  • 1939-53 Flathead Ford V8 4-Ring Pistons, 4 Inch Stroke, .060 Over
    1939-53 Flathead Ford V8 4-Ring Pistons, 4 Inch Stroke, .060 Over
    (Part #91015902)
    x
                

    Original flathead pistons used four rings, were somewhat round, had questionable wrist pins and locks and were made of cast iron. These pressure-cast aluminum pistons share the four-ring design, but are cam ground and use modern steel wrist pins and real snap rings. They’re a great upgrade when rebuilding your 1939-1953 flathead Ford or Mercury V8 engine.

    • Original 4-ring design
    • Pressure cast aluminum construction provides great strength and durability
    • Precision cam ground
    • Modern steel wrist pins
    • Snap ring style retainer clips

    Sizing based on original 3.188" bore. Fits .060" overbore size and 4" stroke crank. Sold as a set of 8.

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"Cylinder Block Components, Piston Sets" Page 1 of 8

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  • Garage Sale - Arias Speedmaster 350 Small Block Chevy Pistons
    Garage Sale
    Garage Sale - Arias Speedmaster 350 Small Block Chevy Pistons
    (Part #145S5252030)
    x
                

    These fit small block Chevy 350 engines using a standard crank & standard rods. They are +.030 bore and have a .225" dome.


     

    NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS

  • Mahle Ford 2.3 Powerpak Pistons, Flat Top, 5.7 Rod
    Mahle Ford 2.3 Powerpak Pistons, Flat Top, 5.7 Rod
    (Part #50309801)
    x
                

    The Mahle PowerPak pistons are a race proven lightweight forged design that are complete with rings, wrist pins and locks. They are also completely phosphate coated plus feature an anti-friction Grafel skirt coating.

    Ford Ford 2300cc (3.78" bore x 3.126" stroke). A 1.5mm, 1.5mm, 3.0mm file fit performance ring set is included. Uses .927" wrist pins.

    • Forged piston for performance applications
    • Fully-machined crown
    • Grafal anti-Friction coating on skirts
    • Phosphate-coated to reduce micro-welding and pin galling
    • Pin bores binished on CNC boring equipment
    • Deburred
    • High strength, light weight steel pins
    • Race proven round wire locks
    • Low drag ring pak
    • Lightweight slipper kirt forgings
  • Garage Sale - Flathead Ford Aluminum 3 Ring Piston
    Garage Sale
    Garage Sale - Flathead Ford Aluminum 3 Ring Piston
    (Part #UP16789)
    x
                

    These Flathead Ford 3-ring pistons are made of A332 aluminum and heat treated to a T-6 spec. They have a 5/64" first and second ring groove and the oil groove is 3/16". 

    Rings sold separately.  

     

    This item is garage sale priced because it is missing two snap rings.

     

    NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS 

  • 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
    (Part #474172)
    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)

  • 1939-53 Flathead Ford V8 4-Ring Pistons, 3-3/4 Stroke, .060 Over
    1939-53 Flathead Ford V8 4-Ring Pistons, 3-3/4 Stroke, .060 Over
    (Part #91015900)
    x
                

    Original flathead pistons used four rings, were somewhat round, had questionable wrist pins and locks and were made of cast iron. These pressure-cast aluminum pistons share the four-ring design, but are cam ground and use modern steel wrist pins and real snap rings. They’re a great upgrade when rebuilding your 1939-1953 flathead Ford or Mercury V8 engine.

    Sizing based on original 3.188" bore. Fits .060" overbore size and 3.75" stroke crank. Sold as a set of 8.

    • Original 4-ring design
    • Pressure cast aluminum construction provides great strength and durability
    • Precision cam ground
    • Modern steel wrist pins
    • Snap ring style retainer clips
  • KB Cadillac 500 Hypereutectic Flat Top Pistons
    KB Cadillac 500 Hypereutectic Flat Top Pistons
    (Part #474353)
    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
    (Part #474193)
    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
    (Part #474113)
    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
    (Part #4749909)
    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)

  • Icon Chevy 350 Forged Pistons, .163 Dome, 5.7 Rod
    Icon Chevy 350 Forged Pistons, .163 Dome, 5.7 Rod
    (Part #474727)
    x
                

    Formerly KB Forged Pistons. Starting with 2618 alloy heat treated to high strength T-6 specifications, these give you the best value for your money. Exclusive V-rib adds strength without adding weight but allows maximum cooling. 

    For Chevy 350 c.i. (4.000" bore x 3.48" stroke). Use Style C rings (1/16", 1/16", 3/16").

    • High ductility 2618 alloy
    • Dual forced pin oiling on most applications
    • Lateral gas porting on higher compression ratios
    • Fully machined with deep valve pockets
    • Second land accumulator grooves
    • Top land mini groove technology
    • Diamond finished skirts
    • Triple wound spiral locks

    Ring Style Chart (GIF)

    474-727 Instructions (PDF)

  • KB Claimer Chevy 350 Hypereutectic Pistons, .150 Dome, 5.7 Rod
    KB Claimer Chevy 350 Hypereutectic Pistons, .150 Dome, 5.7 Rod
    (Part #4749904)
    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)

  • Garage Sale - KB Ford 347 Hypereutectic Pistons, Flat Top, 5.4 Rod
    Garage Sale
    Garage Sale - KB Ford 347 Hypereutectic Pistons, Flat Top, 5.4 Rod
    (Part #474246.030GS)
    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
    • 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 (PD

  • GARAGE SALE - KB FORGED 383 .163 DOME 6"
    $499.99
    $523.99
    Garage Sale
    GARAGE SALE - KB FORGED 383 .163 DOME 6"
    (Part #UP24696)
    x
                

    Formerly KB Forged Pistons. Starting with 2618 alloy heat treated to high strength T-6 specifications, these give you the best value for your money. Exclusive V-rib adds strength without adding weight but allows maximum cooling. 

    For Chevy 383 c.i. (4.000" bore x 3.75" stroke). Will work with Vortec cylinder heads. Use Style C rings (1/16", 1/16", 3/16").

    Ring Style Chart (GIF)

     
    This is Garage Sale priced because no wrist pin clips are included.
     
    NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS 
  • Icon Chevy 350 Forged Pistons, Dish, 5.7 Rod
    Icon Chevy 350 Forged Pistons, Dish, 5.7 Rod
    (Part #474726)
    x
                

    Formerly KB Forged Pistons. Starting with 2618 alloy heat treated to high strength T-6 specifications, these give you the best value for your money. Exclusive V-rib adds strength without adding weight but allows maximum cooling.

    For Chevy 350 c.i. (4.000" bore x 3.48" stroke). Use Style C rings (1/16", 1/16", 3/16").

    • High ductility 2618 alloy
    • Dual forced pin oiling on most applications
    • Lateral gas porting on higher compression ratios
    • Fully machined with deep valve pockets
    • Second land accumulator grooves
    • Top land mini groove technology
    • Diamond finished skirts
    • Triple wound spiral locks

    Ring Style Chart (GIF)

    474-726 Instructions (PDF)

  • 1957-58 Oldsmobile 371 Piston Sets
    1957-58 Oldsmobile 371 Piston Sets
    (Part #9102012)
    x
                

    Replacement pistons for '57-'58 Oldsmobile 371 c.i. V8. Available in .030, .040 or .060 oversizes.

    • Cast from high silicon A-332 aluminum alloy
    • Machined on modern CNC machinery
    • Precision balanced & weight-matched sets
    • Balanced to within 8 grams from the lightest to the heaviest piston
  • Garage Sale - Small Block Chevy Pistons And Rods, 350 Flat Top- 2 Valve Relief, 6.0 Inch Rods
    Garage Sale
    Garage Sale - Small Block Chevy Pistons And Rods, 350 Flat Top- 2 Valve Relief, 6.0 Inch Rods
    (Part #91510212.GS)
    x
                Speedway introduces rotating assembly engine rebuild kits. Includes rods and pistons. 

     

    NOTE: Piston rings and bearings are not included and must be purchased separately.

    NOTE: These rotating assemblies may require additional charges for heavy metal.

    This set is garage sale priced because it only includes pistons 1-3-4-7-8 assembled to rods and includes 3 rods.  What you see is what you get. 

     

    NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS  

  • Garage Sale - Hypermax Pistons - 400
    $129.99
    $169.99
    Garage Sale
    Garage Sale - Hypermax Pistons - 400
    (Part #9151259H)
    x
                

    Flat top Hypermax pistons for small block Chevy 400. These make use of style A piston rings and a 5.565" rod.

     

    Clearance!

     

    NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS 

  • Icon Chevy 305 Forged Pistons, Flat Top, 5.7 Inch Rod
    Icon Chevy 305 Forged Pistons, Flat Top, 5.7 Inch Rod
    (Part #474957)
    x
                

    Formerly KB Forged Pistons. Starting with 2618 alloy heat treated to high strength T-6 specifications, these give you the best value for your money. Exclusive V-rib adds strength without adding weight but allows maximum cooling. 

    For Chevy 305 c.i. (3.736" bore x 3.48" stroke). Use Style E rings (1.5mm, 1.5mm, 3mm).

    • High ductility 2618 alloy
    • Dual forced pin oiling on most applications
    • Lateral gas porting on higher compression ratios
    • Fully machined with deep valve pockets
    • Second land accumulator grooves
    • Top land mini groove technology
    • Diamond finished skirts
    • Triple wound spiral locks

    Ring Style Chart (GIF)

    474-957 Instructions (PDF)

  • Garage Sale - 1959-60 Oldsmobile 394 Piston Sets
    Garage Sale
    Garage Sale - 1959-60 Oldsmobile 394 Piston Sets
    (Part #9102084)
    x
                

    Replacement pistons for '59-'60 Oldsmobile 394 c.i. V8. Available in .030, .040 or .060 oversizes.

    • Cast from high silicon A-332 aluminum alloy
    • Machined on modern CNC machinery
    • Precision balanced & weight-matched sets
    • Balanced to within 8 grams from the lightest to the heaviest piston
    Clearance!!
     
    NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS    
  • KB Chevy 400 Hyperutectic Pistons, Flat Top, 6.0 Rod
    KB Chevy 400 Hyperutectic Pistons, Flat Top, 6.0 Rod
    (Part #474128)
    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)

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