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I want to install hks272 exhaust cams on my 4g63t colt. I hear about using 272 cams and stock intake cams, i just dont know if is going to work or do i have to change anything on the head. I did a 3 angle valve job on the head, SI dual spring and manley retainers......

The 272s are supposed to be able to work with a stock valvetrain, but it doesn't hurt to run upgraded springs and valves, especially if you plan to raise the rev limit. I myself haven't heard of using a 272 ex with a stock in cam, but have heard of plenty using a 264 intake cam.

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John
89 Colt GT(2)
88 d50 4g63t, crower 272's, dsmlink

I knew someone who bought a DSM that had a 272 exhaust cam and a stock intake cam. It's stupid, and the first thing he did was get a 272 intake cam to put in there. 272's have no issues with stock valvetrain, especially if you're not trying to rev to the moon.

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91 GSX - 511fwhp and 352 lb/ft 25psi 110 octane, 7.68 @ 95.9mph 1/8th 21psi 91 octane, 11.93 @ 112.9mph, 117.7mph best trap speed, 20psi 91 octane
98 Volvo S70 T5 - DD

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