The Mahle piston set for Chevy 400ci V8 is a complete set of eight pistons specified for a 4.125" bore and 3.750" stroke. Product details list rod length and pin dimensions and indicate a high compression ratio (listed as 12.2:1 in the catalog line and 12.1:1 in extended specs). Supplied as a matched set of eight pistons for rebuilding or assembling the specified 400ci engine.
Mahle Piston Set Chevy 400ci 4.125in Bore 3.750in Stroke 6.0in Rod 12.2:1 CR Piston Set of 8