Originally Posted by
Adam-M
I think it’s based on an rs500 cast iron block but has a through stud design, would imagine it being allot stronger than the cast aluminium version. Might be built for historic race cars are ultimate power drag engines.
Correct on both areas , based on the early rs500 block but with the extra added areas the alloy block has so stronger than the rs500 block. They can also do the through stud head bolts.
they have only machined a few so far but with historic racing taking off in a big way that's where most are being sold.
ive asked Steve which are stronger and his honest oplnion is they don't know . He said they have seen a lot of Harvey's engines seeing close to 1000 bhp and he posted a picture today and the block had jge penned on the side so he uses them as well.
i personally think the cast iron block will be stronger but a lot heavier.
cheers paul