Cylinder Head 44x37.5 94mm
AA PERFORMANCE. EACH. 501 SERIES. SINGLE HI-REV VALVE SPRINGS.
This is a brand new 501 high performance cylinder head for a VW Type 1, 2 or 3 dual port. Head comes with stainless steel 44mm intake and a stainless steel 37.5mm exhaust valves, with harden keepers, chromoly retainers, and single high rev springs. 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 increased head flow & performance. A second full fin, so you can fly cut your heads deeper to achieve almost any desired head CC volume needed. Blocked off rocker stud bosses, to eliminate the O-ring and stop possible oil leaks. Long reach 3/4 inch spark plugs, to reduce the chance of cracking between the valve seat and plug. Must be used with hardened lash caps as the valves are stainless steel.
AA 50146094B
This is a brand new 501 high performance cylinder head for a VW Type 1, 2 or 3 dual port. Head comes with stainless steel 44mm intake and a stainless steel 37.5mm exhaust valves, with harden keepers, chromoly retainers, and single high rev springs. 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 increased head flow & performance. A second full fin, so you can fly cut your heads deeper to achieve almost any desired head CC volume needed. Blocked off rocker stud bosses, to eliminate the O-ring and stop possible oil leaks. Long reach 3/4 inch spark plugs, to reduce the chance of cracking between the valve seat and plug. Must be used with hardened lash caps as the valves are stainless steel.
AA 50146094B
Part #: AA50146094B
CAD 569.00