Mahle Motorsport 930221525 Mahle MS Piston Set GM LS 427ci 4.125in Bore 4in Stk 6.067in Rod .927 Pin -2.5cc 12.2 CR Set of 8

428cid 4.125 x 1.181CH, 4.000stroke,6.067rod,0.927pin,-2.5cc,447g,11.8CR, 4032

Piston (set) - LS 7.0L FLAT TOP & DISH - compatible with LS7 style heads

Application Summary: Chevrolet LS7 428 cu in.

Coatings: Phosphate + Grafal