AUTOTEC PONTIAC 428 FORGED PISTON SET #1000581

Part # 1000581

$736.00

AutoTec, Pontiac 428, Flat Top, two valve reliefs, 4.160 Bore 4.000 Stroke 1.575 Comp HT

CALL TO ORDER  714-903-4362


Specifications

Engine Family Pontiac 428
CID/Ltr 435/7.1
Bore Inch 4.16
Bore mm 105.66
Stroke Inch 4
Stoke mm 101.6
Rod Length 6.625
Comp Dist 1.575
Crown Volume -5cc
CR 1 11.5 @ 72cc
CR 2 10.6 @ 80cc
CR 3 9.9 @ 84cc
Alloy 4032
Weight 551
Pin 0.98
Oil Rails Included N/A
Top Ring 1.5mm
2nd Ring 1.5mm
Oil Ring HT 3.0mm
Piston Style Flat Top, two valve reliefs

Item# Description
1000581

$736.00


compression calculator

Please fill in the details below to calculate the compression ratio for your engine. Accurate inputs will give the best results. Once you’ve filled out the form, click “Calculate” to see your engine's compression ratio.

dome volume to compression ratio


compression ratio to dome volume


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