Motor mounts - Team Camaro Tech
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post #1 of 22 (permalink) Old Oct 9th, 16, 03:29 PM Thread Starter
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Motor mounts

Can anyone tell me if the "tall style" motor mounts were the only style used in 1st gens? I'm putting a 454 in my 68 and I know that 396 and 454's are identical on the outside and can only seem to find the tall style mounts for the 396? Just hate buying things twice. Thanks for your help.

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post #2 of 22 (permalink) Old Oct 9th, 16, 03:52 PM
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Re: Motor mounts

There were tall and short. Also the BBC mounts were offset forward to allow additional firewall clearance. We have a place here local called Camaro Concepts that can hook you up.
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post #3 of 22 (permalink) Old Oct 9th, 16, 04:01 PM
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Re: Motor mounts

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post #4 of 22 (permalink) Old Oct 9th, 16, 07:55 PM
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For Big Block engines the 67/68 engine mounts are the short and wide. These engine mounts use taller frame stands then the 69' tall and narrow engine mounts. The combined height of frame stands and engine mounts is almost identical. You can not mix and match the frame stands and the engine mounts.


69 Camaro -originally a LM1 car. 327, Edelbrock E-streets, hooker, DUI performance distributors, ultradyne cam, stewart, TRW etc. Vintage Air, AGR steering, Corbeau GTSII seats, 700R4 transmission, 12-bolt w/Eaton 4.11:1
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post #5 of 22 (permalink) Old Oct 10th, 16, 08:22 AM
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Re: Motor mounts

My motor mounts fit great, problem is no clearance for header at p/s gearbox.....I hav a set of hookers 2457hkr & tried hedman 63618 neither will clear the p/s gearbox with a 502, plus the hookers won't clear the bottom head bolts. The motor mounts are 2-1/4" to centre of bolt hole and the drivers side stand is 1-1/2" to center of bolt hole and passenger side is 1-3/4" to centre of bolt hole. Are there any out there that will fit
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post #6 of 22 (permalink) Old Oct 10th, 16, 10:52 AM
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Do you have the correct big block frame stands and transmission crossmember ? If you have an aftermarket crossmember, make sure that it has the correct offsets. The transmission mount needs to be 1/2" to the passenger side and 3/4" forward of the small blocks location. If you do not have this your engine and transmission will sit crooked and your headers will not fit properly.
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69 Camaro -originally a LM1 car. 327, Edelbrock E-streets, hooker, DUI performance distributors, ultradyne cam, stewart, TRW etc. Vintage Air, AGR steering, Corbeau GTSII seats, 700R4 transmission, 12-bolt w/Eaton 4.11:1
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post #7 of 22 (permalink) Old Oct 10th, 16, 11:06 AM
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Quote:
Originally Posted by sask68camaro View Post
The motor mounts are 2-1/4" to centre of bolt hole and the drivers side stand is 1-1/2" to center of bolt hole and passenger side is 1-3/4" to centre of bolt hole. Are there any out there that will fit
If you look at the chart above, your measurements match those for a 350 small block. See if there are any part numbers on the stands and see what they are n this chart.


69 Camaro -originally a LM1 car. 327, Edelbrock E-streets, hooker, DUI performance distributors, ultradyne cam, stewart, TRW etc. Vintage Air, AGR steering, Corbeau GTSII seats, 700R4 transmission, 12-bolt w/Eaton 4.11:1
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post #8 of 22 (permalink) Old Oct 11th, 16, 12:20 AM
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Quote:
Originally Posted by sask68camaro;
3746730 The motor mounts are 2-1/4" to centre of bolt hole and the drivers side stand is 1-1/2" to center of bolt hole and passenger side is 1-3/4" to centre of bolt hole. Are there any out there that will fit
I just reread the above posts and you do have the correct big block frame stands. Your 2 1/4" dimension threw me off. That number should only be 1 3/4" for the Short and wide 67-68 engine mounts.

69 Camaro -originally a LM1 car. 327, Edelbrock E-streets, hooker, DUI performance distributors, ultradyne cam, stewart, TRW etc. Vintage Air, AGR steering, Corbeau GTSII seats, 700R4 transmission, 12-bolt w/Eaton 4.11:1
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post #9 of 22 (permalink) Old Oct 11th, 16, 07:31 AM
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Re: Motor mounts

Thanks Tom, I had the engine down on the mounts before I tried to install the header and it fit the mounts perfectly, so I thought the mounts were correct. I bought the car as a roller & the seller said it was a big block in it before.
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post #10 of 22 (permalink) Old Oct 12th, 16, 06:24 AM
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Re: Motor mounts

My motor mounts seem to be wider then the stands, if I had to guess maybe 3/8's of an inch. Does this mean the stands are wrong or the engine mounts are wrong? Is that normal? The motor does sit to one side, so it makes me think the stands are right(maybe they are too narrow?). Sorry not to steel the thread but now that I read this thread it made me think about it.
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post #11 of 22 (permalink) Old Oct 12th, 16, 07:30 PM Thread Starter
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Re: Motor mounts

Thank you!! that helped...got the short and wide and bought a set of the OEM frame mounts.. mocking up the block, trans, and hedders onto the subframe before I roll it under the body..


Quote:
Originally Posted by TJS69 View Post
For Big Block engines the 67/68 engine mounts are the short and wide. These engine mounts use taller frame stands then the 69' tall and narrow engine mounts. The combined height of frame stands and engine mounts is almost identical. You can not mix and match the frame stands and the engine mounts.

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post #12 of 22 (permalink) Old Oct 12th, 16, 09:50 PM
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WOW ! That underside sure is pretty ! Now, don't forget the BBC transmission crossmember ! Are those hotchkis sub-frame connectors ?

69 Camaro -originally a LM1 car. 327, Edelbrock E-streets, hooker, DUI performance distributors, ultradyne cam, stewart, TRW etc. Vintage Air, AGR steering, Corbeau GTSII seats, 700R4 transmission, 12-bolt w/Eaton 4.11:1
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post #13 of 22 (permalink) Old Oct 20th, 16, 05:38 AM
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Re: Motor mounts

Hello again, if I went with the shorter mounts the hooker 2457 would be even closer to the steering box the
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post #14 of 22 (permalink) Old Oct 20th, 16, 12:43 PM
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There are not any shorter mounts !

Tall and narrow engine mounts + '69 frame stands = 3 7/8 combined height.
Short and wide engine mounts + '67/'68 frame stands = 3 15/16 combined height

You cannot mix the engine and frame mounts !

69 Camaro -originally a LM1 car. 327, Edelbrock E-streets, hooker, DUI performance distributors, ultradyne cam, stewart, TRW etc. Vintage Air, AGR steering, Corbeau GTSII seats, 700R4 transmission, 12-bolt w/Eaton 4.11:1
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post #15 of 22 (permalink) Old Oct 26th, 16, 12:34 PM Thread Starter
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Re: Motor mounts

Quote:
Originally Posted by TJS69 View Post
WOW ! That underside sure is pretty ! Now, don't forget the BBC transmission crossmember ! Are those hotchkis sub-frame connectors ?
Thanks, the connectors are Global West. Is there really a difference in trans crossmembers?? ...and is there a way to distinguish the difference if there is?? I just put the one that came with the car in..
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