is it true that....
This is copied directly from the cam guide sticky. It appears they did have a slightly bigger cam, but the LSA is tighter on the 01-02(they also got a LS6 intake stock from GM for 01-02). Some 01-02 models also got stock LS6 heads. Hence the reason most 01-02 models make more power bone stock than a 98-00.
- Your starting point:
Stock 98-00 trans am cam
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
- Your starting point:
Stock 98-00 trans am cam
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
.... If they both have the same intake, would the 99 respond better or make more power with the avergae bolt ons...lt, ptb, etc? I am a virgin when it comes to cams, what do you mean by tighter lsa?
Originally Posted by BIG_MIKE2005
This is copied directly from the cam guide sticky. It appears they did have a slightly bigger cam, but the LSA is tighter on the 01-02(they also got a LS6 intake stock from GM for 01-02). Some 01-02 models also got stock LS6 heads. Hence the reason most 01-02 models make more power bone stock than a 98-00.
- Your starting point:
Stock 98-00 trans am cam
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
- Your starting point:
Stock 98-00 trans am cam
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
Are you sure some '01-02 car's got LS6 heads, or was it the LS6 block?
Originally Posted by 99Hawk262
Are you sure some '01-02 car's got LS6 heads, or was it the LS6 block?
i've seen several 01-02 automatics run 12s bone stock, so i would guess the heads are more common...
Originally Posted by 99Hawk262
Are you sure some '01-02 car's got LS6 heads, or was it the LS6 block?
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Joined: Mar 2004
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From: BFE
Originally Posted by BIG_MIKE2005
This is copied directly from the cam guide sticky. It appears they did have a slightly bigger cam, but the LSA is tighter on the 01-02(they also got a LS6 intake stock from GM for 01-02). Some 01-02 models also got stock LS6 heads. Hence the reason most 01-02 models make more power bone stock than a 98-00.
- Your starting point:
Stock 98-00 trans am cam
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
- Your starting point:
Stock 98-00 trans am cam
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
Originally Posted by PREDATOR-Z
You mean LS6 blocks but 01/02 have 241 casting head, same compression as older models
So which is it. 243's are LS6 heads right? '01-02 LS1's got 241 heads or 243 heads or both? My original question piggybacks on this....I knew some of the later LS1's got LS6 blocks, but LS6 heads was news to me.
Sorry for the hijak...just trying to learn more.
Last edited by 99Hawk262; Jun 2, 2007 at 01:58 PM.
all 01-02 got the ls6 intake
some got the ls6 block
NONE got ls6 heads!!!
as for the original question....the small difference in the cams is not enough to make one car respond better to mods. there is too much variation from engine to engine to ever be able to see changes like that in a cam.
although having the lobe angles smaller on the later cams could change the sound of the engine at idle, as well as maybe pull the power band down a little. but again....so small it would be nearly impossible to notice
some got the ls6 block
NONE got ls6 heads!!!
as for the original question....the small difference in the cams is not enough to make one car respond better to mods. there is too much variation from engine to engine to ever be able to see changes like that in a cam.
although having the lobe angles smaller on the later cams could change the sound of the engine at idle, as well as maybe pull the power band down a little. but again....so small it would be nearly impossible to notice
NO fbody got ls6 heads period end of discussion. SOME 01/02 cars got the LS6 block which gives ZERO hp over an ls1 block. ALL 01/02 F-bodies got the LS6 intake to help make up for the smaller cam. the lower the ls1 generally the earlier the cam makes peak power but not always, theres many other factors.
so all in all no year will react better to mods than the others.
so all in all no year will react better to mods than the others.