Ls1 heads for lingenfelter gt12 cam
06-17-2019, 02:51 PM
#1
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Ls1 heads for lingenfelter gt12 cam I have a 99 trans am with the lingenfelter gt12 camshaft 614/621 valve lift lobe sep 115 what would be the best heads to put on for that cam the stock ones are still on it now and the stock heads are way to restrictive
06-17-2019, 03:03 PM
#2
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Do you want ported stock castings or completely new heads?
There is a plethora of decent porters that you can send your stock castings to.
The TFS 220 Fast as Cast or the MMS223 Sportsman heads are both excellent in performance and value if you want new heads.
There is a plethora of decent porters that you can send your stock castings to.
The TFS 220 Fast as Cast or the MMS223 Sportsman heads are both excellent in performance and value if you want new heads.
06-21-2019, 03:48 PM
#3
GT12 cam - 227/235 duration @ .050 lift - .614/.621 lift with 1.7 rocker 115 CL
Travo, what sort if budget do you have in mind for heads and intake manifold? What intake manifold are you planning to run?
The old LS1 intake is pretty horrible compared to just about anything else. It really needs to be replaced to see the full benefits of the new cam and any head upgrade.
Travo, what sort if budget do you have in mind for heads and intake manifold? What intake manifold are you planning to run?
The old LS1 intake is pretty horrible compared to just about anything else. It really needs to be replaced to see the full benefits of the new cam and any head upgrade.
