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Old 07-12-2016, 09:13 PM
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65nss4spdGTO 65nss4spdGTO is offline
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Join Date: Apr 2006
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Quote:
Originally Posted by John Langer View Post
I put the inserts in my new heads to try to eliminate the extra weight of the external water pump system. Made 8 dyno pulls. Pulled the heads off and added the external water holes and pump system...
Are you saying the inserts didn't work?

I'm sure the water helps, but everyone that has used this mod showed a big gain in head gasket life.

Calvin Hill
Hill Performance
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