The Mahle MS piston set for GM LSX 454 cid engines provides eight pistons built to a 4.185" bore with a 4.125" stroke. They use a 1.050" ring specification, 6.125" connecting rods and .927" wrist pins, with a -5.8cc crown volume that yields a 12.0:1 compression ratio. Individual piston mass is listed at about 462g; sold as a complete eight-piece set.
Mahle MS Piston Set GM LSX 454cid 4.185x1.050RCH 4.125 Stk 6.125 Rod .927 Pin -5.8cc 12.0CR Set of 8