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The Mahle MS piston set for small-block Ford 447ci applications is an eight-piece matched kit intended to rebuild displacement and maintain compression in large-capacity SBF builds. It’s sized for a 4.090 in bore and a 4.250 in stroke to reach the listed 447 cid. Pistons are specified as 4.090 x 1.325CH with a 6.700 in rod and a 0.990 in pin, listed at -28cc crown volume and a 9.3:1 compression ratio.
Mahle MS Piston Set SBF 447ci 4.090in Bore 4.250in Stroke 6.7in Rod .990 Pin -28cc 9.3 CR Set of 8
