501 Series Performance Heads 40 by 35.5 Valves, Pair 1.1 Giving you the the ability

Giving you the the ability to build any possible combo Street/Drag head you want

It Comes with Seats 42x37

so you can Fly cut your heads deeper to achieve almost any desired Head CC volume needed

Engine size: 1700cc

Stock replacement 1500-1600cc can be bored and machined to work on engines all the way up to 2386cc

501 Series Performance Heads 40 by 35.5 Valves, Pair 1.1 Giving you the the abilityThis 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 40mm Intake and a Stainless Steel 35. 5mm Exhaust Valves, with Harden Keepers, Chromoly retainers, and Single high rev springs. They are ready 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