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Old 03-08-2013, 11:05 PM
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68 Firebird Motor Mounts

I have a 68 Pontiac Firebird with a Pontiac 400, Edelbrock heads, and a hyd. roller cam. I ordered a set of motor mounts from Autozone and the bolt hole is not deep enough. I have to add 2 washers to get the bolt to secure to the frame. There is not a huge selection for these mounts. What do guys think my best options are?

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Old 03-09-2013, 06:18 AM
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How many threads does the bolt screw in?
You are taliking about where the mount pins to the car itself and not the mount to the block...correct?
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Old 03-09-2013, 06:25 AM
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I had the same problem POS mounts made in Bangladesh!!
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Old 03-09-2013, 06:35 AM
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That sucks. I threw away a set of mountd from a 1965 Bonnie , sad thing is they were in good shape, It appeared like they were the same as an early F body. Wish I had known.
I was gonna E bay them , but figured it wasnt worththe hassle.
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Old 03-09-2013, 01:23 PM
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Bolting it up to the block is no issue. It's where the bolt goes between the mount and frame.
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Old 03-09-2013, 02:52 PM
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you went to autozone.
they prollbally gave you camaro mounts
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Old 03-09-2013, 03:08 PM
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Try Year One in Braselton Ga. or NPD, National Parts Depot in Ocala, Florida. Both should have the correct motor mount for a 68 Pontiac Firebird. Tell them it is not the same as a camaro as the Pontiac motor is a different configuration. I also have a 68 Firebird. It is hard to get correct parts from Autozone or the local parts distributors. Good luck.
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Old 03-10-2013, 09:34 AM
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Ames Performance and Performance Years are, IMO, the best places to buy Pontiac parts. They, unlike those listed previously, deal ONLY with Pontiacs. They don't HAVE Camaro parts...

We have a NAPA store right next door. We get mounts from them. Sometimes made in China, some in India, SOME in "USA"(!). If your local store has a real parts person, and not just keyboard cowboys, they can get you exactly what you need, and reasonable in price.

Yes, Lynn, B-body and F-body had the same mounts in that era.

Another solution to the problem is to use new bolts, without the "extension" that protrudes from the threads. The stock bolts look a lot like an oil pan drain plug. That added nub is bottoming in the hole. If you get a good grade 8 bolt with the same thread length (1/2-20 threads), it will be all the way "in". A "hard" washer is also required. Most hardware suppliers, the 7/16" washer is more effective on the 1/2" bolt.

Jim
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