Mahle Pistons 928965300 Forged Dome BB Chevy 4.500 Bore

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. Forged from 4032 or 2618 aluminum alloys to suit specific needs for strength and durability. Forced Pin Oiler is used for increased wrist pin lubrication. Pin bores are CNC precision-machined. .990' High-Quality Steel Wrist Pin (145g), Performance 1.5, 1.5, 3.0mm file-fit performance ring set, and Race Proven Round Wire Locks are included.

Compression Ratio with 112cc Heads 11.1:1.
Compression Ratio with 118cc Heads 10.6:1.
***Replaces part number BBC270500D13***
Note: Oil rail supports included.