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Originally Posted by rst95eclipse
Don't you have to bore it out when you're doing a 2.3? I believe that a 2.3's bore is 88mm. Maybe you have it switched around. More torque than HP.
Well there's po-folk like me that doesn't have the cheese to get my hands on that hardware.
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No, its a 88mm stroke for a 4g63.
It is a 100mm stroke for a 4g64.
The bore is 85mm on the 4g63.
The bore is 86.5mm on the 4g64. (thanks shane for the correction!)
The srt-4 stuff, just for fun:
101mm stroke w/ 87mm bore. They call it a "2.4" that revs to a blistering 6000rpm (factory redline).
Bore size=horsepower.
Stroke is usually related to reving capiblities, powerband, and torque.
The 4g64 crank in the 4g63 isn't worth it in my honest opinion. Just buy the correct block to begin with.