Is a aluminum head legal in CF in the NARRC series?
Is a aluminum head legal in CF in the NARRC series?
yes, but only the IVEY alum. head and still must meet GCR dimensions for F1600 valves and port sizes.
ajw
[QUOTE=AJWALKER;386737]yes, but only the IVEY alum. head and still must meet GCR dimensions for F1600 valves and port sizes.
ajw[.
Last edited by BURKY; 04.16.13 at 10:15 PM.
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