i have a standard LET in my nova and was wondering if its ok to put a modified xe head on to the engine. is there any difference as dont wanna get the LET head done if my Xe one is ok 2 use.
There is no differance apart from
1) cam shafts
2) bolt holes on the side for DIS unit, not used if dizzy present
3) end cap for exhasut cams, ie DIS or dizzy type.
Other than that there is no real differance in mounting holes, valves or guides, but COSCAST valve guides are a bit different to Ks heads.