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In a 7m motor with forged pistons. Is there a significant difference between a bored block with oversized pistons and a stock bore block with a slight hone (or none at all) and stock bore pistons? Would there be significant differences in performance, reliability, or durability?

Cool man, keep in touch. Depending on whether or not I'm in town that week, I'd love to meet somewhere. Or are you kidding, judging by that weird smiley face?

I wish i was in America. No one over here has a running 1UZ swap but me.

Why has this suddenly turned into a 7m vs 2jz thread. The 7m is a great motor. No matter how great the 2jz is, that fact won't change.

I Don't think the driver of either car would be walking out of the woods.

The question is very vague. If you wanted to you could just get a gigantic intercooler and water injection to handle higher boost pressures. In that situation, it wouldn't be the boost that the stock engine components couldn't handle, it would be the power.

Theoretically, a 1000hp 7m would be pretty much the same as a 1000hp 2jz, aside from the 7m being built a little stronger, and maybe boosted a little more. Its entirely possible to see 1000+ on a 7m engine. Whether it is streetable in a supra chassis is another story. I would have to say yes...

Check out lextreme.com That whole site is dedicated to the lexus V8s, and there is a whole subforum for the UZ supra swaps. If you can't find something there, or need additional help, just give me a PM, as I've done quite a few of these conversions.