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$469.99

$395.99

KB Chevy 400 Hypereutectic Pistons, .150 Dome, 6.0 Rod

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

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Part # 474129

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$395.99

$469.99

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030 040

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Details

Piston Material:

Hypereutectic Aluminum

Piston Style:

Dome

Piston Diameter:

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Dome Height:

.150"

Connecting Rod Length:

6.000"

Piston Ring Style:

Stroke:

3.75"

Wrist Pin Diameter:

.9272"

Piston Weight:

500 grams

Wrist Pin Weight:

145 grams

Compression 58cc =:

14.1 : 1

Compression 64cc =:

13.0 : 1

Compression 76cc =:

11.2 : 1

Sold in Quantity:

Set

MFG. Part #:

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GTIN Code:

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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)

474-129 Instructions (PDF)

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