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Old Aug 15, 2024 | 06:06 PM
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Default Heads and headers

I have a built LS1 with Kooks headers in my 99 FRC track car. I am considering upgrading my heads and intake manifold to LS6 or better. Will the existing headers mate correctly to the LS6 heads?
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Old Aug 15, 2024 | 08:50 PM
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Yes they will. Just use an LS1 gasket.
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Old Aug 18, 2024 | 04:54 PM
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Yes
Don’t discount getting a set of the 5.3 heads that TSP machines.
They have smaller chambers so there is a bump in compression. They are the stage 2.5 CNC


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Old Aug 18, 2024 | 11:08 PM
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Originally Posted by Markolc1981
Yes they will. Just use an LS1 gasket.
thanks
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Old Aug 18, 2024 | 11:09 PM
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Originally Posted by Mc556
Yes
Don’t discount getting a set of the 5.3 heads that TSP machines.
They have smaller chambers so there is a bump in compression. They are the stage 2.5 CNC
good info. Thanks.
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Old Aug 19, 2024 | 01:27 PM
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FWIW there are options like the summit 'as cast' heads. They are similar to a set of ls6 heads supposedly, but instead of refurbishing a head, you're getting all new parts. I think there are a couple companies doing a similar things.
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Old Aug 20, 2024 | 03:49 PM
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Originally Posted by Midwayman
FWIW there are options like the summit 'as cast' heads. They are similar to a set of ls6 heads supposedly, but instead of refurbishing a head, you're getting all new parts. I think there are a couple companies doing a similar things.
Yep. AFR also has the Enforcer series. Downside: castings are made in China. They seem to be just fine though and are supposedly checked and assembled stateside.
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Old Aug 20, 2024 | 08:51 PM
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Originally Posted by G_Loc
Yep. AFR also has the Enforcer series. Downside: castings are made in China. They seem to be just fine though and are supposedly checked and assembled stateside.
good to know. Thanks
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Old Aug 20, 2024 | 08:52 PM
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Originally Posted by Midwayman
FWIW there are options like the summit 'as cast' heads. They are similar to a set of ls6 heads supposedly, but instead of refurbishing a head, you're getting all new parts. I think there are a couple companies doing a similar things.
good to know. Thanks
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