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Originally Posted by chevylover
i recently purchased a stock 572 bbc and i want to put it in my 89 iroc, how many problems am i gonna encounter? and can the frame handle that kind of torque? what mods am i going to have to make?
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Which "stock" 572? GM made /makes a few with different flavors of HP.
The weak unibody will not be able to handle a BB's power, you need subframe connectors at the least. The biggest clearance problem you should have is with the LH valve cover hitting the wiper motor housing on the firewall. Then there is the cooling. You'll need to get the biggest and best radiator for it that you can find, that beast will be hot and retain heat because it has very little room around it in the engine compartment.