
The Wiseco Professional Series forged Chevrolet small-block piston is a single flat-top unit aimed at heavy-duty race applications. Sized for a 4.030 in bore with a 1.2505 in compression height and 0.927 in pin diameter, it’s sold individually. Forged from 2618 aluminum, the piston offers precision ring grooves, an anti-detonation groove, ArmorGlide skirt coating, a fully machined crown and forced pin oiling.
Wiseco SBC Strutted Flat Top 1.250inch CH Piston Shelf Stock