Originally Posted by
Saalro
V1 or 2 engine, fully closed
Yes and most have holes in them due to the internals being crap
Pistons on the early sti and version 2 sti are not as good as the later version 3 onwards, which are not as good as the new age, plus the rods are a big weak spot on the classics, they all share the same crappy ones which let go, hence most people say dont go over 350bhp, thats the main reason (they can and do let go lower than 350bhp but its rare so 350bhp is a nice limit), just dont go with the advice on someone who say's a classic engine is reliable with 400bhp going through it on standard internals
I should also note that the best crank is the twin scroll (not version 9 as there was no version 9 car) crank which is crossed drilled and nitrided, hence why you see people using these on rebuilds and not the standard one
(jap only btw, not uk cars)
Tony
