Motor mounts - Team Camaro Tech
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post #1 of 3 (permalink) Old Jan 26th, 10, 06:39 AM Thread Starter
123
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tom
 
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Motor mounts

need advise on mounts the car is a 67 ss/rs it had a 350 i'm upgrading to a 383 not sure what year the block is but i do know it has a 1 piece main seal back in the day the original 350 kept braking motor mounts so i put steel ones in and i'm not really sure that would be the best way to go in today's world any opinions or recommandation the car has a manual trans and a 3:91 gear it will be a driver

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post #2 of 3 (permalink) Old Jan 26th, 10, 08:24 AM
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Tom
 
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Re: motor mounts

Energy suspension Poly engine mounts. In 67 all small blocks used the same frame mounts. They just used different engine mounts. The problem you may run into is clearance at the Harmonic balancer with the front sway bar. Many manufactures of engine mounts did not make a seperate mount for the 302/350 cars. This engine mount was needed as the 302/350 cars had an 8" harmonic balancer. Your 383 should have a large balancer probably a 400 as the crankshaft will be externally balanced. UNLESS the engine builder knows that he must make it internally balanced with a smaller balancer. One other way to avoid this is to use a sway bar like the Hotchkis sway bar that has a "step" or bend away from this area.


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 #3 of 3 (permalink) Old Jan 26th, 10, 09:44 AM
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Tom
 
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Smile Re: Motor mounts

Here is a Moroso Solid engine mount that shows the very small amount the engine is moved to get an 8" balancer to clear the STOCK sized sway bar.



1/8 " in engine mount width = 1/16" movement of engine back towards the firewall.

1/16" in engine mount height = 1/32" of actual height movement when mounted at 45.

For a '67 or a '68 I would use Energy Suspension "short and wide" engine mounts and use shims to move the sway bar down. Because you more than likely have a larger than stock sway bar, that will have to be shimmed anyway.

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

Last edited by TJS69; Jan 26th, 10 at 09:59 AM.
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