Alloy 8 Port Head with 37.mm inlet valves with springs/top caps built up to take .500 thou cam lift with approximately 21cc combustion chamber.
The valve springs used are
C-AEA526 with a fitted length of 1.350"
for the most radical of race cams
C-AEA527 may be used with a fitted length of 1.440"
This is the cylinder head only and not a straight bolt on part so see description for
C-AJJ4064 kit.
All heads are hipped and heat treated from the foundry and pressure tested before machining and again after they are assembled.
Special camshaft and modification to No 2 &4 S con rods is required, or special rods
C-AEG624 are available using different bolt configuration.
Original design and tooling from Jim Whitehouse-the founder of Arden Conversions this head with tecalemet injection won class and series outright,in the 1969 British saloon car championship on a 970cc Cooper S.
37mm inlet and 30.5mm exhaust valves
Head Gasket GEG300,BK450 or
C-AHT189 cometic/or multi steel layer type must be used