Mahle Power Pack for 604 Crate- ACT and North East Legal!

Fits Fast burn 603 and 604, Corvette, ZZ4, and LT1

Available in 4.00, .005, .020, .030 AND .040 Over Sizes

Same Piston as GM # 10159436 ... Compare to 1000.00 a set from GM!!!

Saves Blocks, Money and adds Durability

Forged Aluminum

Pressed-Pin

350 5.7L High Output Engine

Flat Top 4 Valve Reliefs

Square Skirt Bottom

GM - Mahle Original Replacement

10:1 Compression 58cc Head

9.6:1 Compression 62cc Head

Ring size 2.0 - 1.5 - 4.0mm ----- Rings also available, 2.0mm x  1.5mm x  4.0mm ring package 

Pistons Have Been Tested 500HP Oval Track with 4000 Laps of Competition

Tested with Small Shot NOS Drag Racing

GM 604 Crate Engine Performance Forged Mahle Pistons

Looks just like a stock piston, it pretty much is other than being forged it has the same weight and ring pack as a stock part.

Forged 4032 alloy pistons deliver improved durability compared to the OEM cast pistons found in GM “604” crate engines. Identical in design to the OEM units, flat-top pistons accept stock-sized 1.5mm and 2mm compression rings, and 4mm oil rings. Ap-proved by a wide variety of sanctioning bodies. Sets of eight with press-fit wrist pins. Note: Small block Chevy compression ratios are based on a 64cc combustion chamber.