hey all im looking for some gx heads to suit a12 engines and even gx motors
send me a email and pics if you have any.
cheers
bill

i reckon it would be cheaper to build one then buy have a look at the tech section a bit in there covers the specs of the gx motors

it probably would be cheaper but gx heads work better on our racecars
cheers
bill
ps also looking for codsworth pistons to suit a12

a gx head consists of

heart shaped combustion chambers
oval ports (like the standard A15 cylinder head). Standard A12s have smaller round ports. The best heads have the ports up higher than the round-port version. There are Oval port heads with the ports lower down.
double valve springs
valves. Compare to A14/A15 with 37 mm inlets & 30 mm exhaust valves
Later GX heads have two little water jackets under the ports, for warming the inlet manifold
intake ports shaped differently for flow and swirl
and twin sus strapped to the side of it

ive got an a14 h72 head with oval ports,but might be too low in compression for your needs?
$150

hey there our engines run huge compression 10:1 or 11::1 we run side draught webbers and the engine is on methanol.
so i will find out if the head will suit
cheers