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Hi,

Does anybody know what the exhaust bolt pattern is on TFS-R heads?

I'm not talking about the stock 2" bolt center horizontal pattern, but the wider diagonal bolt pattern they come with.

I have regular TFS heads I bought used, and the previous owner had them drilled for some other exhaust bolt pattern. My 1 3/4" hooker headers also use that pattern. I figured out what head it was last time and ordered gaskets, but I forgot and I'm starting from scratch. I know the pattern is not 351C 2bbl or 4bbl. I suspect it might be TFS-R.

If anybody could help by measuring their heads, it would be appreciated.

Thanks,

- Steve
 
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