this is the correct bolt and spacer. the bolt is a 1/4 inch but has a smaller head size to accept a 3/8 socket. (correct smaller head one shown on the right). the holddowns are same on all 50's 60s SBC's
-- Edited by beaumontguru on Friday 28th of October 2022 08:30:02 PM
My 283 1964 Beaumont came with the larger washers and screws (versus a bolts). Not sure why anyone would do that. Has anyone seen screws holding the valve covers down, like in the attached picture?
On A body, before bolts all Ive ever seen is a large head Phillips screws. Just an FYI.
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63 Parisienne sport coupe (The Big GTO), black, maroon interior, 409 4 speed; former owner of a 59 El Camino, 63 Corvette SWC, 62 Chev Bel Air SC. 1963- Pontiac top selling car in Canada
Mahone Bay, NS Still not old enough to need an automatic