Mahle MS Piston Set GM LS7 428ci 4.130in Bore 4in Stk 6.067in Rod .927 Pin -3cc 12.2 CR Set of 8

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. Mahle pistons are forged from 4032 low expansion aluminum alloy for high strength for a reduced piston to wall clearance. 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.

Compression Ratio with 70cc Heads 11.8:1.
Replaces part number LS7181130F03

Bore Size	4.130
Crankshaft Stroke	4.000
Rod Length	6.067
Piston Type	Flat Top
Compression Height	1.181
Piston Material	4032 Forged
Piston Ring Size	1.0 1.0 2.0mm
Wrist Pin Size	0.927