Alright i've got an 89 350 TPI out of the car and it's going in very soon. And a while back I ordered an LT4 HOT cam to put in it. My only question is since the heads aren't coming off what do I need to have this cam work in my car? I have no idea what rockers would be best or springs i need to get. I heard someone tell me 1.6 rockers might cause the valve to stab the piston which is no good hehe. I just want to get the cam in and I need to do it quick since this guy is trying to finish this job ASAP.

By the way its an all stock motor. Thanks for replies!

 

You will need new springs, and you will need to have the heads machined to accept a cam with that much lift. I think you just need to cut down the valve guides so the retainers wont hit. Your mechanic should know this stuff. The cam has a lift of .492"/.492" with 1.5 rockers.


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1991 Camaro Z28
5.7L 5-Speed (originally 305)
317 RWHP, 418 RWTQ
13.23 @ 107.62 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Member: SoCal F-Bodies
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