KEITH BLACK HYPEREUTECTIC PISTONS

Keith Black pistons are favored for their improved power and reduced scuffing. The utilization of a permanent mold with multiple die parts allow undercut areas above the pin hole and material distribution in the skirt area that stiffen the entire piston.

A rigid piston rocks less in the cylinder bore and improves ring seal. These T-6 heat treated pistons also offer reduced thermal expansion which allows you to run tighter clearances and allows the piston rings to seal better and minimize blow.  These KB pistons have a single trench valve relief.

4.000" pistons are available in .030, .040 and .060 oversize.

4.125" pistons are available in .030 and .040 oversize.