[Ant]

Fred,

What rpm are you doing at 62mph?

Bevan,

I sold the Trigos as I am going to 17" same size as yours as I need different backspacing offset on the front of the Ram, as it has a wider track, plus going 13" rotors etc to up the brake capabilities.

I have done the sums on Ford and Chev, they work out about the same, and a crate engine would be a bit cheaper but this engine is going to have bits like Jessel ceramic cam follower and rockers, starts getting a bit expensive with dry sump etc.
I am still not convinced I need an alloy block as the weight saved in my 1000bhp rated transmission (magnesium case 80Ibs) is 50Ibs over the 130Ib T56 I was going to use, thats within 10Ib of the 60Ib saving with the alloy block!