For info on the OHC6 jump over to https://www.tapatalk.com/groups/sohcsix/ . Sprint engine has a number of differences as compared to the regular OHC6. The '66 & '67 were 230 cu in while the '68 & '69 were 250 cu in. Also the Sprint Head is a whole different animal than the regular head. The main thing they have in common is that they are totally unique as compared to the Chevy 6. About the only items that work with both ( Chevy & Pontiac ) are the carb, alternator and power steering unit, even the starter is different. Were a small group over at SOHCSIX, but have loads of info on the OHC6. Jump over & take a look & we will point you in the right direction. Have a Merry Christmas and Happy Holidays.
