yep that's a good place to start... ive requested it now
this whole b35vs b34 usa / b34 euro question...
my very short and not confidently accurate research shows that these three engines have the same bore / stroke, so I'm assuming all the compression ratio difference is in the piston shape ???
Both pistons and head.
if one was planning to run webers and going to rebuild said engine with new pistons anyway would it actually make any difference what the donor was ?
or am I over simplifying it ?
This makes it even more simple. The thing that made the b35 special was increased compression (over catalyzed b34 engines), a better breathing head, and motronic 1.3. Besides that, no benefit.
In your case, running carbs will rule out 1.3. Your intake manifolds will have b34 shaped ports, so moving to a b35 head would mean you'd have to open up the ports to match the head (if you're doing it right).
Your best recipe is:
Any b34 block to ensure fitment.
Crank of your choice (b35 is a little heftier, but you'll never know the difference).
Head of your choice (the increased compression of the Euro b34 made more horsepower than the world-wide b35, so the b35 head isn't that important unless you're increasing compression with new pistons meant for a b35 head). Decide what head (b34 or b35) you're going with before ordering pistons, since the combustion chambers are shaped differently, unless of course you were considering flat topped or dished pistons, in which case you're better off with a b34 head.
thanks for the incoming wisdoms
Andy