The Mahle MS piston set for GM LSX 404 cid engines provides a full set of eight pistons machined for a 4.010" bore and 4.000" stroke. These pistons use a 1.110" ring specification, 6.125" connecting rods and .927" wrist pins, with a -14.0cc crown volume yielding roughly a 10.0:1 compression ratio (catalog lists 10.5:1). Weight per piston is about 402g.
Mahle MS Piston Set GM LSX 404cid 4.010x1.110RCH 4.0 Stk 6.125 Rod .927 Pin -14cc 10.0CR - Set of 8