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LS short box · 12-26-2021, 05:57 PM

Since you are doing a cam swap are going to upgrade the valve springs and push rods. I would. Depending on your engine mileage I would also replace the plastic lifter guides. They are cheap.

12-26-2021, 05:57 PM	#130
LS short box Registered User Join Date: Jun 2015 Location: Carlos MN Posts: 1,929	Re: 5.3 into 72 Since you are doing a cam swap are going to upgrade the valve springs and push rods. I would. Depending on your engine mileage I would also replace the plastic lifter guides. They are cheap.