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LS short box · 12-08-2022, 05:39 PM

400 rear wheel HP or 400 crank HP?
400 crank HP. A cam, headers and a good tune.
400 rear wheel HP. A cam, headers, good heads with a bit more compression and a tune.
Pretty much any bigger cam will need better valve springs and push rods.
Depending on the size of the cam a "good" stall converter would be nice.

12-08-2022, 05:39 PM	#2
LS short box Registered User Join Date: Jun 2015 Location: Carlos MN Posts: 1,923	Re: LM7 5.3 build question... 400 rear wheel HP or 400 crank HP? 400 crank HP. A cam, headers and a good tune. 400 rear wheel HP. A cam, headers, good heads with a bit more compression and a tune. Pretty much any bigger cam will need better valve springs and push rods. Depending on the size of the cam a "good" stall converter would be nice.