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Keith Black KB143.030 Chevy 305 Pistons, .030 Over, Flat Top, 5.7 Rod
KB Chevy 305 Hypereutectic Pistons, Flat Top, 5.7 Rod

Keith Black KB143.030 Chevy 305 Pistons, .030 Over, Flat Top, 5.7 Rod

305 Chevy Small Block V8, Flat Top w/ 2 valve reliefs Piston Style, 3.480" Stroke

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KB Chevy 305 Hypereutectic Pistons, Flat Top, 5.7 Rod
KB Chevy 305 Hypereutectic Pistons, Flat Top, 5.7 Rod
Keith Black KB143.030 Chevy 305 Pistons, .030 Over, Flat Top, 5.7 Rod
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KB Chevy 305 Hypereutectic Pistons, Flat Top, 5.7 Rod
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Part # 474143-030
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  • Specifically designed for the S/B Chevy 305 c.i. (3.736" bore x 3.48" stroke)
  • Features fully machined crowns and valve reliefs
  • Has drilled oil drain backs and full floating wrist pins
  • Use of reflective alloy allows 2% power increase
  • Special quench dome technology minimizes deterioration

Details

Piston Style:
Flat Top w/ 2 valve reliefs
Piston Material:
Hypereutectic Aluminum
Piston Diameter:
3.766"
Stroke:
3.480"
Connecting Rod Length:
5.700"
Piston Weight:
470 grams
Piston Ring Style:
A
Wrist Pin Diameter:
0.9272"
Wrist Pin Weight:
145 grams
Compression 58cc =:
10.0 : 1
Compression 64cc =:
9.3 : 1
MFG. Part #:
KB143.030
GTIN Code:
800745047076
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.

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)

Item Details

C/R 58cc=10.0, 64cc=9.3, 76cc=8.2
Piston/Pin Weight: 615 g
Rod Length: 5.7", Ring Style: A

Specs

  • Comp Height 5.7" Rod -  1.561
  • Comp Height 6.0" Rod -  1.261
  • Pin Diameter -  0.9272

Charts

474-143 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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