501 Series Performance Heads 42 by 37.5 Valves, Pair 500 Cutting Required for exact deck

Cutting Required for exact deck Height

Stroke: 71 to 78mm

Designed for road/oval track racing

This is a new set of 94mm Racing Long Thick Wall Type 1 Cylinder Set

This is a replacement ring set for our VW9600T4S66 and VW9600T4S66P kits

501 Series Performance Heads 42 by 37.5 Valves, Pair 500 Cutting Required for exact deckThis is a brand new Set of 501 High Performance Cylinder Heads for a VW Type 1 2 or 3 Dual Port. Heads comes with Stainless Steel 42mm Intake and a Stainless Steel 35. 5mm Exhaust Valves, with Harden Keepers, Chromoly retainers, and Single high rev springs. They areready to install. The 501 Series Castings come STD with: Increased material at the intake surface giving you the ability to make much bigger ports. A modernized Combustion chamber, for