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Title: Matching manifold to ported head Post by: FC229 on November 08, 2007, 04:20:17 PM I have an old superflow head which is in at the moment being rebuilt with stainless inserts and valves etc. Has anyone had experience with matching the manifold to the head ports? It's an alloy inlet manifold (with 2 barrel holley) so I assume it would be fairly straight forward, but a bit worreid it may also be easy to stuff it up.
Title: Re: Matching manifold to ported head Post by: Glenn 'Stinky' Stankevicius on November 08, 2007, 04:51:31 PM Last time I did it (years and years ago) I matched the gasket to the head, then used the gasket as a template. Make sure it is the right way around, then scribe or texta the shape on to the manifold and start grinding and filing.
It's better to be a little undersize and have a "step down" to the head than to have the manifold oversize and there be a "step up" as it will disturb the airflow. Title: Re: Matching manifold to ported head Post by: Damo58 on November 09, 2007, 06:36:56 PM i agree with stinky i used the gasket as a template just remember to angle up into the ports because they get a bit thin as you head in
Title: Re: Matching manifold to ported head Post by: FC229 on November 30, 2007, 12:50:15 PM Thanks for the replies folks. I have been put on to a local bloke who will match it and fit guides so therels no guessing (as with the manifold sitting on the studs) for about $120. Figured it wasn't worth stuffing around myself for that sort of money.
Title: Re: Matching manifold to ported head Post by: FB_MAD on November 30, 2007, 08:01:44 PM I've port matched a few heads at home here and there and $120 is cheap considering the time it took me to do it :-[ :-[ :-[
Terry. |