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I noticed of the six remaining I have three with an L mark and three with the SBC mark.
I do not see anything in the NCRS manual about the markings so I dont really know if I should be trying to make them all the same.
Picture shows the two different markings I have now. Which is correct? A mix?
GM had no compulsion to make sure all bolts were supplied by the same manufacturer, so didn't give a whit about markings. They were buying from reliable vendors at contract prices. When the bins of fasteners got low, new stock, from whatever supplier was on the top of the heap were dumped in. It's really only us NCRS folks who obsess about markings and making sure they all match.
GM had no compulsion to make sure all bolts were supplied by the same manufacturer, so didn't give a whit about markings. They were buying from reliable vendors at contract prices. When the bins of fasteners got low, new stock, from whatever supplier was on the top of the heap were dumped in. It's really only us NCRS folks who obsess about markings and making sure they all match.
And, THIS IS THE CORRECT ANSWER!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!
So, if you have a 5/16-18 bolt of the correct length, put it in, and go on down the road.
GM had no compulsion to make sure all bolts were supplied by the same manufacturer, so didn't give a whit about markings. They were buying from reliable vendors at contract prices. When the bins of fasteners got low, new stock, from whatever supplier was on the top of the heap were dumped in. It's really only us NCRS folks who obsess about markings and making sure they all match.
Along the same lines but a different area of the car. When I restored my '67 12 years ago these were the eight bolts holding down the seats...talk about a mish mash.
03-07-2024, 03:22 PM
66 Muncie side cover bolts
