VW 1600 Port & Polish Stage 1 Cylinder Heads, 40X35.5 “Pair”

Description

This is a brand new pair of high-performance stage 1 round port cylinder heads for a VW Type 1, 2, or 3 dual port. Heads comes with hand round ports for increased flow and performance with stainless steel 40mm intake and a stainless steel 35.5mm exhaust valves, hardened keepers, chromoly retainers, and dual high-rev springs. They are ready to install.

Made from an AA 500 series casting, these come STD with clean flowing cooling vanes for maximum cooling through the head and around-the-intake ports for increased HP and overall cooling.

These heads feature:

• 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″ spark plugs to reduce the chance of cracking between the valve seat and plug.

Engine: VW Type 1, 2 ,and 3 1600 dual port

Springs: Dual high-rev springs

Valves: 40mm intake by 35.5mm exhaust

Casting: AA Performance 500

Plug Size: 12mm (Replacement NGK number is D8EA)

Bore: 85.5 – works with 85.5,87 and 88 slip-in kits

Bore: 92 – works with 88 thick wall, 90.5, and 92mm kits

Bore: 94 – works with 92 thick walls K and M and 94mm kits