Thanks guys.
Randy, head gaskets are Fel Pro 1011-2 as recommended by Edelbrock.
7/16" ARP head bolts with Edelbrock bushings.
Will check pushrod length, new standard length hardened steel pushrods.
Paul, I have 1.6 ratio roller rockers, so for now with the standard cam, I don't forsee any problem, but I will check clearance. The other thing I might need to do is change the rocker covers, I am not sure that my Ford Racing covers will clear the roller rockers, so thats another check to make.
Emission holes noted, will check.
Neal, thanks, will check, but I think I read that these are non EGR heads, and the EGR heads are a different part.
Jac Mac, ok understood, seems a well thought out method.
The only other thing I was worried about was the clearance between exhaust and rocker cover is only about 1" on one side, so if I need a larger valve cover it might get closer. I will check everything over the next week. Fitting a radiator at the moment, and am making brackets to weld on to the chassis, so if I can finish in good time, I will have a go.
btw, I ordered heads, rockers manifold, bolts and gaskets from
Roadcraft Repower suppliers of American engine parts from Edelbrock for Ford and Chevrolet V8 engines and Tremec transmissions at lunchtime monday, arrived tuesday. The site is well laid out and easy to find stuff, with plenty of explanatory notes, so it gets a thumbs up from me. I have no connection with them, but they were helpful when I phoned and checked that I had ordered compatible parts. The heads seem a good price too, so if you are thinking of buying heads check them out.
Dave