Yeah...exacta weld...could have took the head there before and asked them (begged) to do...the valve seat would then need cutting etc...cheers for the tools...
Checkout the mod thread...it says use fibreglass...but to do it properly it is easy to get a lump of alumin put in where the gap is and have it drilled out as per the original design...i will take pic's if i have time or take them later and post them up...
Hey Kev... Sorry to hear about Sid, I reckon your best bet is to use Tonkas head... The camshaft is a bit wilder on the 4x4 engines and it's a dizzy fitting head too... It'll work. Just make sure you make it up to Tonka ASAP!!
All the best and good luck with the fix!! Luke.
P.S. speed reading: hope I got the jist of it all... if not then sorry!!