Seller notes

Heres a nice offenhauser 5766 aluminum intake manifold for the Chevy big block engines manufactured from 1965 thru 1990. There are no cracks, welds , or extra holes. The only mod I see is one of the coil mount bosses has been tapped 3/8-16 instead of the 5/16-18. No big deal as most coil brackets have 3/8 holes or slots in them. For rectangular port heads. Can be used on oval ports too with a change of gaskets. This was the trick the old school guys did back in the day as there was no restrictio...

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