[vector1]

i was concerned about using the afr185 in replacement of the gt40 heads because of valve clearance, then if i could use a different cam. here are the pics of the pistons in the crate engine, a pic of a probe piston that used afr225 heads and a healthy 244/244 .500+ lift cam, so i don't think using the afr185 heads is going to be a problem. also included is a piston/block pic of a production f4te piston, with no valve reliefs so i don't believe the larger valved head could be used on it. the afr heads should also raise the compression to around 9.5 with the 58cc chamber vs. the 64cc on the gt40s.

the cam was installed 2R, or 2 degrees retarded, so a different cam and a little advance should all add up.

anybody want a good pair of gt40 heads for only $750 with 1.6 rockers, pedestals, pushrods i can ship them in the afr box.

the gt40 heads did have a larger inlet than the afr185 heads, but i imagine the smaller 1.90 valve in the gt40 caused the runner to be smaller further down than the afr185's 2.02 valve.