AHM Boxer 8v Race Big Valve Pack
To suit 8 Valve Chambered Cylinder Heads
The Chambered cylinder heads used on the later 33s very the head of choice, using mec tappet cam boxes
1.5 and 1.7 chambered heads can both be used.
Stainless steel race valves with 7.10 mm valve stems, Bronze valve guides to suit, Race valve springs,Valve spring bases, valve stem seals,Very light Titanium valve retainers, Cotters, Cam followers with top hat shims to replace the very heavy shims used as std.