243 heads.. what cam/intake?
Are you running the Yellow springs or did you move up to dual springs?
curious as well on the OP topic..
I think I might head this route with 243s since i'm more on a budget build for now. My new home closes in Oct. so I definitely need a cheaper build but with decent power and great street manners.
I think I might head this route with 243s since i'm more on a budget build for now. My new home closes in Oct. so I definitely need a cheaper build but with decent power and great street manners.
TECH Apprentice
Joined: Sep 2005
Posts: 340
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From: Amarillo, Tx
Duration@.050 198.86 intake 209.25 exhaust
Lift .498 intake .497 exhausts
LSA 119.45
Stock 01-02 trans am cam
Duration@.050 196.37 intake 208.72 exhaust
Lift .464 intake .479 exhausts
LSA 115.92
https://ls1tech.com/forums/generatio...cam-guide.html
https://ls1tech.com/forums/generatio...-me-first.html
the link cam/heads/rocker machine question link is an awesome thread. Thanks for pointing in my direction, That will most likely answer most of my questions.
Thanks, Sorry for hijacking the thread.
Thanks, Sorry for hijacking the thread.
I have a 2002 Z28 with a 6 speed. The car is stock aside from the following. Lid, MAF, PCM Tune, 180 stat, 4.10's, Kooks LT's with low restriction cats and B&B triflow catback.
I then purchased a brand new set of 243 heads with the yellow springs and hollow valves. I intend on ordering a cam, pushrods and gasket package. I contacted Thunder racing and asked which cam to buy that would give me optimal preformance while not compramising drivability. Here is the reply I got.
If you do not port the heads I would suggest going with the 230/224/111LSA cam. Has the driveablitly of the TR224 but will make more power. If you do go ahead and port the heads the TR227 Extreme would be a pretty good choice for what you are looking at. Specs are 227/227/ - 116 LSA. Lift is .639/.639. It idles similar to the 224 but will utilize the flow of the ported cylinder head better. If you decide to go with the 230/224 you will not have to change springs, but you will definitely have to change the springs with the 227 extreme. As far as the injectors you should be fine with the stock one. Let me know if you have any further questions or if which direction you are looking to go.
I then purchased a brand new set of 243 heads with the yellow springs and hollow valves. I intend on ordering a cam, pushrods and gasket package. I contacted Thunder racing and asked which cam to buy that would give me optimal preformance while not compramising drivability. Here is the reply I got.
If you do not port the heads I would suggest going with the 230/224/111LSA cam. Has the driveablitly of the TR224 but will make more power. If you do go ahead and port the heads the TR227 Extreme would be a pretty good choice for what you are looking at. Specs are 227/227/ - 116 LSA. Lift is .639/.639. It idles similar to the 224 but will utilize the flow of the ported cylinder head better. If you decide to go with the 230/224 you will not have to change springs, but you will definitely have to change the springs with the 227 extreme. As far as the injectors you should be fine with the stock one. Let me know if you have any further questions or if which direction you are looking to go.
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