KB Chevy 400 Hypereutectic Pistons, Dish, 5.7 Inch Rod
KB Chevy 400 Hypereutectic Pistons, Dish, 5.7 Inch Rod
Keith Black

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#474168

KB Chevy 400 Hypereutectic Pistons, Dish, 5.7 Inch Rod

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$494.85

/set

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$494.99

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Key Specs

MFG. Part #Select Size
Piston StyleDish
Piston MaterialHypereutectic Aluminum
Wrist Pin IncludedYes
Wrist Pin StylePress-Fit or Floating
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Details

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

  • 390 Hypereutectic alloy
  • 22cc dish
  • 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

Item Details

C/R 58cc=10.4, 64cc=9.8, 76cc=8.8
Piston/Pin Weight: 700 g
Rod Length: 5.7", Ring Style: A

Charts

Specs

  • Comp Height 5.565" Rod -  1.561
  • Comp Height 5.7" Rod -  1.433
  • Comp Height 6.0" Rod -  1.13
  • Pin Diameter -  0.9272

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.
CA Prop 65
CARB warning

Specifications

KEY SPECS
MFG. Part #Select Size to see
BrandKeith Black
Piston StyleDish
Piston MaterialHypereutectic Aluminum
Wrist Pin IncludedYes
Wrist Pin StylePress-Fit or Floating
GENERAL
Piston DiameterSelect Size to see
Stroke3.750"
Connecting Rod Length5.700"
Piston Weight545 grams
Piston Ring StyleA
Wrist Pin Diameter0.9272"
Wrist Pin Weight145 grams
Top Ring Thickness5/64"
Second Ring Thickness5/64"
Oil Ring Thickness3/16"
Compression 58cc =10.4 : 1
Compression 64cc =9.8 : 1
Compression 76cc =8.8 : 1
GTIN CodeSelect Size to see
Sold in QuantitySet

Ratings & Reviews

4.7

3 Reviews

Overall Assessment

Customers appreciate the exceptional quality of our product, especially given its competitive pricing. The product stood out in hone fittings, with users impressed by the superior quality offered at this particular price point. Many customers would gladly repurchase due to the product's high-quality materials and practicality. It proves its worth by outshining competitors in both usability and safety features.

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4.7

3 reviews

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Good product would buy again

4.0

7 months ago

Bear

Colo

Verified

Used this product in my other builds works well

Would Recommend

Great product

5.0

7 years ago

Rob

Bybee tn.

Verified

Great quality for good price

Would Purchase Again

5.0

7 years ago

Rob

Fort Lauderdale,FL

Verified

Just finished the hone fit. Impressed with the quality for the price point...

Would Recommend

Showing 3 of 3 reviews

Questions & Answers

2 Questions • 2 Answers

I have a 1971 400 4 bolt main block that has been board .030 over and has lived a nice long life 180k miles since it was built in 1979. Can this block be safely board to .060 over? I noticed the .060 option for pistons is not an option for this engine option... Is this block a 2 piece rear main seal motor? Do you have a internal balance rolling assembly with crank, rods and pistons available for this 1971 block? Cell 810-429-0425

by Johnny5 (I'm still alive)

• 4 months ago

1 answer

View Answer

Can you tell me what piston rings I must buy? (please send a link) The pistons are KB Chevy 400 Hyperutectic Pistons, Dish, 5.7 Inch Rod 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 Hypereute

by Torben

• 12 years ago

1 answer

View Answer

2 of 2 questions shown

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