Thanks Gerry. The two heads are fantastic value. I have had a close look at both left & right side and like you cannot see any difference at all. And as we found out at your workshop only the head gaskets differ tochange the coolant flow charateristics through each head.

Sean Hewland (USA) reckons they are different but couldn't say why. Other USA racing suppliers sell modified head x 2 required with no reference to right or left side.

thanks again for a great deal and great hospitality also :-)

Phil & Dawn