The Mahle MS piston set for small-block Ford 408ci applications is an eight-piece forged piston kit intended to rebuild displacement and restore compression in SBF engine builds. It’s a matched set sized for a 4.030 in bore and 4.000 in stroke to achieve the specified 408 cid. Each piston is listed as 4.030 x 1.230CH with a 6.250 in rod and 0.927 in pin, -20cc crown volume and a 10.0:1 compression ratio; individual weight is shown near 409 g.
Mahle MS Piston Set SBF 408ci 4.030in Bore 4.000in Stroke 6.2in Rod .927 Pin -20cc 10.0 CR Set of 8