NHcarnut Posted August 8, 2007 Share Posted August 8, 2007 Another trip to the barn, didn't have time to remove stuff piled on top. Any guesses based upon this part of valve cover that is visible? Link to comment Share on other sites More sharing options...
1937hd45 Posted August 8, 2007 Share Posted August 8, 2007 Pontiac late 1960's, it's crap was crap new, good scrap metal pile addition. Link to comment Share on other sites More sharing options...
earl e rizer Posted August 8, 2007 Share Posted August 8, 2007 Pontiac 250 c.i. This was the 1st engine to use a rubberized cam drive belt by Gates. Anyone who is restoring a Pontiac Firebird Sprint might need it. See if it has a 4 bbl manifold. Link to comment Share on other sites More sharing options...
Mike Cullen Posted August 10, 2007 Share Posted August 10, 2007 I have a friend with a 67 firebird sprint with the OHC 6. if it's a 4 bbl intake, please PM me. (I've never heard of the 6 having a 4 bbl) Link to comment Share on other sites More sharing options...
Dave@Moon Posted August 10, 2007 Share Posted August 10, 2007 The Pontiac OHC 6 was made from 1966 to early 1970. It displaced 230 cubic inches for the first 2 years, 250 cubic inches thereafter, and was based on a Chevy 6 with the belt driven overhead cam. The 4 barrel Quadrajet carb was a factory option, and a compression ratio of 10.5:1 was available. The Quadrajet set-ups are highly sought after. Fully optioned the OHC 6 was capable of 215 HP.The first truly high perfomance American 6 since the Hudson Twin-H (although some performance add-ons were available for Mopar Slant-6s), it wasn't the most relaible engine on the market. <span style="font-style: italic">Consumer Reports</span> never ceased to reccommend against it. However in good tune it could surprise an unwary small-block, with decent economy and improved handling/weight bias as well. Link to comment Share on other sites More sharing options...
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