Product Summary

  • Fully machined head and valve reliefs
  • Advertised piston weight 606 grams, 158 gram wrist pin
  • Machined in Oil Returns
  • Mini Grooves to reduce scuffing and overheating
  • Accumulator Groove aids with compression ring seal
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Key Specs

MFG. Part #
Piston StyleDish
Piston MaterialHypereutectic Aluminum
Wrist Pin IncludedYes
Wrist Pin StylePress-Fit or Floating
See more specs

Need To Know

Quick and Easy Returns

Return Policy

Details

Keith Black Hypereutectic pistons are a great choice for high performance marine, drag race, circle track, street or towing application builds. The low expansion 390 alloy with 16 percent silicon allows for a tighter piston to wall running clearance.

  • Fully machined head and valve reliefs
  • Triple Spiral Lock Rings
  • CNC machined pin bores produce straight and accurately sized bores
  • Accumulator Groove aids with compression ring seal
  • Machined in Oil Returns
  • Diamond Finished Skirts
  • Mini Grooves to reduce scuffing and overheating
  • Wrist pins and spiral lock included
  • 1/16 x 1/16 x 3/16 rings not included
  • Compression Ratio 521 - 76cc 11.0:1, 82cc 10.5:1, 91cc 9.8:1, 97cc 9.4:1 / 545 - 76cc 11.5:1, 82cc 10.9:1, 91cc 10.2:1, 97cc 9.8:1
  • Advertised piston weight 606 grams, 158 gram wrist pin
  • OE Deck Height 10.320"
  • Note: Standard bore size is 4.360
  • Note: Centered Pin. Includes spacer ring. Made from Ford 460 block. Check rod side clearance

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.

Specifications

KEY SPECS
MFG. Part #
BrandKeith Black
Piston StyleDish
Piston MaterialHypereutectic Aluminum
Wrist Pin IncludedYes
Wrist Pin StylePress-Fit or Floating
GENERAL
Piston Diameter
Piston Ring StyleC
Top Ring Thickness1/16"
Second Ring Thickness1/16"
Oil Ring Thickness3/16"
GTIN Code
Sold in QuantitySet

Questions & Answers

1 Question • 1 Answer

Can I get a set of these piston in std

by Richard

• 10 years ago

1 answer

1 of 1 questions shown

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