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Reply to "Port matching heads to headers"

Originally posted by Bosswrench:
FWIW, Larry- I agree with Doug. Head and intake manufacturers do the best they can on port sizes and orientation, using dyno runs and all when building their products. Then hot-rodders with die-grinders promptly alter the ports to match someone's stamped gaskets! Note also that gasket openings vary noticably from different sources. All I usually do is make sure the header flanges are flat, as welding distorts the finished product.

I'd recommend using the Fel-pro header gaskets.
These are for the aftermarket aluminum heads. My header flanges match these.


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  • FEL-1430_ml