Mahle Pistons 930210840 Forged Dish 4.040 Bore SB Chevy 385

Mahle pistons were designed as a completely finished drop in forged piston assembly. Other than filling the included performance piston ring set, everything is done for you. Mahle has over 80 plus years of piston manufacturing making pistons from OEM to formula 1 racing. Mahle uses only the best technology to make these pistons. Mahle pistons come standard with anti-friction skirt coating for reduced drag. They are forged from 4032 or 2618 aluminum alloys to suit specific needs for strength and durability. Forced Pin Oiling is used for increased wrist pin lubrication. Pin bores are CNC precision-machined. .927" High-Quality Steel Wrist Pin (118g), Performance 1.0, 1.0, 2.0mm rings, and Race Proven Round Wire Locks are included. br>
Compression Ratio with 64cc Heads 9.9:1.
***Replaces part number SBC125040I16***