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Old 04-13-2005, 11:45 AM   #1
STi-Spec C
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Default Would I lose HP if I use STi block?

Like the title says would I lose HP if I switch over to the STi block? I know that it has a lower compression. I'm doing this because the block and gasket set is only 1700 from the dealer and I would get a bullet proof engine pretty much.
My head gasket is leaking coolant so subaru says that I have to replace it. They said it would cost 700 dollars. So I figured if I just spend and extra thousand I would get a brand spanking new block.
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Old 04-13-2005, 12:02 PM   #2
JewPac42
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Yes, due to the lower compression ration you would lose a good deal of power, unless you went turbo at the same time. That block was designed for boost and without boost it will cost you power.
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Old 04-13-2005, 12:06 PM   #3
STi-Spec C
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thanks. So I guess I'll just stick with the head gaskets.
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Old 04-13-2005, 12:19 PM   #4
Tim Sanderson
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Those sti blocks are'nt all that bullet-proof anyway. They are much better than the ej251 though. You'd need to drop in some higher comp pistons.
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