The Mahle MS piston set for GM LSX 429 cid applications includes eight pistons sized to a 4.130" bore and 4.000" stroke. These pistons use a 1.110" ring arrangement, 6.125" rods and a .927" wrist pin, with a -18.0cc crown volume producing about a 10.1:1 compression ratio. Per-piston weight is approximately 431g and the set covers a full V8 rebuild.
Mahle MS Piston Set GM LSX 429cid 4.130x1.110RCH 4.0 Stk 6.125 Rod .927 Pin -18cc 10.1CR - Set of 8