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Keith Black KB129.030 Hypereutectic Chevy 400 Pistons/6.0 Rod
KB Chevy 400 Hypereutectic Pistons, .150 Dome, 6.0 Rod

Keith Black KB129.030 Hypereutectic Chevy 400 Pistons/6.0 Rod

400 Chevy Small Block V8, Dome Piston Style, Hypereutectic Aluminum Piston Material

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KB Chevy 400 Hypereutectic Pistons, .150 Dome, 6.0 Rod
KB Chevy 400 Hypereutectic Pistons, .150 Dome, 6.0 Rod
Keith Black KB129.030 Hypereutectic Chevy 400 Pistons/6.0 Rod
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KB Chevy 400 Hypereutectic Pistons, .150 Dome, 6.0 Rod
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Part # 474129-030
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$469.99
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Details

Piston Style:
Dome
Piston Material:
Hypereutectic Aluminum
Piston Diameter:
4.155"
Dome Height:
.150"
Stroke:
3.750"
Connecting Rod Length:
6.000"
Piston Weight:
500 grams
Piston Ring Style:
C
Wrist Pin Diameter:
0.9272"
Wrist Pin Weight:
145 grams
Compression 58cc =:
14.1 : 1
Compression 64cc =:
13.0 : 1
Compression 76cc =:
11.2 : 1
MFG. Part #:
KB129.030
GTIN Code:
800745045348
Sold in Quantity:
Set

Info

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

Ring Style Chart (GIF)

Item Details

C/R 58cc=14.1, 64cc=13.0, 76cc=11.2
Piston/Pin Weight: 645 g
Rod Length: 6.0", Ring Style: C

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

Charts

474-129 Instructions (PDF)

Important Messages

  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
Some parts are not legal for use in California or other states with similar laws/regulations

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