im about to rebuild a turbo ea82 motor and try for about 160-180hp with a bigger turbo and refrigerent cold air intake deal, anyways my question is: is it worth my time to keep the ea82t heads or to just go for the non turbo head/block with turbo pistons? i know that by using the non turbo head i'll have to make a new intake manifold for the injectors but that seems easier than having to tear the motor down again to replace or fix a head. any input at all would be nice. thanks -david

I don't quite understand your question...

 

You need to use Turbo or MPFI heads. Those have the dual port intake. If you're thinking of using SPFI/Carb heads, those only have a single port intake. Your injector setup would be, funky.

 

What's your opposition to using Turbo/MPFI heads? Just send your existing ones off to a machine shop and have them fix the heads.

i know about the mpfi and spfi stuff, i'd jut setup two injectors on one port, i was just wondering about the rumors of cracking ea82t heads........

oh yeah and they are the first gen heads (i think) 85 gl turbo mpfi - that is why i ask

The Single port heads crack as well, all EA82 heads crack between the valves. These little crack are minor and ussually don't go that deep on the NA engines. the general consensus is if the cracks are small they are fine. The thing is that the higher heat and compression of the turbo makes them crack worse(ie... all the way to through the exhaust into water passage. But if you run an even bigger turbo on higher compresion pistons, you'll be subjecting either head, single or dual port, to alot of intense heat and pressure. You're just as likely to crack the single port heads as the duals.