Thanks for the help with GX head guys,
Is there any chance I can pick your brains a bit more?
The block that the head is attached to has a number N58A stamped at the front near the water pump. I checked another A12, an A14, and my A15 and they don't have anything stamped in the same spot. Does this mean anything to anyone? What are the differences between a GX block and internals without pulling it apart.
Will the A12 GX head fit my A15 without any problems?
Would this head give me any power gains?
The engine came with a two piece exhaust manifold that has two pipes which bolt up to another two and go into one further down. Is this a GX system also?
Any info would be appreciated.
Thanks
Kelvin.