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Originally Posted by Pistol
Confussed ? some one told me today that boss heads & triton heads are identical stud patten but wasn't 100% sure about the 290 boss extractors fitting the 5.4.lt triton that came from a mate that worked at FPV I like to know more as I have a set of boss extractor sitting there .
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Exhaust ports are different shape I think.
4V heads are wider too.