Re: Do I need ARP head bolts for a 50trim upgrade.
Deffinatly get the ARPs or you will be pushing coolant. Your valve springs should be ok with the 272s but If you beat on your motor like alot of us do it probably wouldn't be a bad idea to get some Crowers. Especially if you have 100K+ miles.
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What the fuck should I 4G6x swap?
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