Mahle MS Piston Set BBF 544ci 4.39in Bore 4.5in Stroke 6.7in Rod 0.990 Pin -38cc 9.7 CR Set of 8

BIG BLOCK FORD for Std Valve Location CYLINDER HEADS (FoMoCo, Edelbrock, TFS, Blue Thunder, Etc.) 521cid 4.390 x 1.350CH, 4.300stroke,6.800rod,0.990pin,-38cc,506g,9.3CR, 4032.