Intake bolts headmarkings still need help

[Dennis W.]

I still need help with the headmarkings on the bolts that were in my intake manifold. Mine do not look like the ones that have the "UR" on them, mine are different. I will try to post a picture of mine so that maybe someone can help identify them. If the ones I have are not correct for an aluminum manifold for 67 327/350, do the bolts that have a "M" on them work and if not does anyone have any idea where I can get correct bolts. Thanks again for your help, Dennis.

[Timothy B.]

Re: Intake bolts headmarkings still need help

Dennis,

The bolts pictured are not correct. My 67 300hp car has M bolts. Check ebay as they come up frequently.

[Dennis W.]

Re: Intake bolts headmarkings still need help

Thanks for your prompt reply, I will start looking on ebay. Any idea what the bolts are suppose to be for? Dennis

[Gene M.]

Re: Intake bolts headmarkings still need help

Dennis
The grade 5 bolts with "M" marking are good from Paragon.

I have seen grade 2 "M" bolts too but not sure where they come from.

[Peter J.]

Re: Intake bolts headmarkings still need help

Dennis,
66 JG says: Black Phosphate "A", "M", "FP", "TR", "UR" for L-79 engine.
Try Rich Pasqualone or John Messinger They both seel original bolts and will know what is right for your 67.
Pete