Wiseco Professional Series forged piston set for Chevrolet small block with a 4.000 in bore and 1.550 in compression height, supplied as a set of eight pistons with 0.927 in pin diameter and 12.30 cc specification. Forged from 2618 aluminum and fully machined in the USA, these pistons include precision ring grooves, an anti-detonation groove, ArmorGlide skirt coating for seizure resistance and reduced friction, forced pin oiling, and premium rings for demanding race applications.
Wiseco Chevy Small Block 4.000in Bore 1.550in CH 12.30 CC Piston Set