67 v8 motor mount to frame perches - Impala Tech
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post #1 of 11 (permalink) Old 10-04-2016, 03:33 AM Thread Starter
 
 
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67 v8 motor mount to frame perches

My 67 impala did not have the motor mount frame perches on it when I got the car. I want to put a 454 in it. Anyone know where to get a set? Thanks much..
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post #2 of 11 (permalink) Old 10-04-2016, 08:18 AM
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The SBC and the BBC use the same frame stands, You can use the ones off of a 1965-'70 donor car that had a V8 from the factory.

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post #3 of 11 (permalink) Old 10-05-2016, 12:55 AM
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Yes, however there are 2 different styles over those years Dave listed and you just have to make sure you order the engine mounts for the same car that you get the frame perches from.
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post #4 of 11 (permalink) Old 10-05-2016, 08:57 AM
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Right, there are Talls and Shorts.

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post #5 of 11 (permalink) Old 10-05-2016, 09:21 AM
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To narrow it down; you need a 1965 to '67 frame engine stand. The 1968-'70 models used a different stand due to a safety recall caused by broken motor mounts. and a lawyer named Ralph Nader. The 1968 through 1972 models used short and wide stands to account for the thicker, stronger (interlocking) motor mounts.

The original design implemented with the 283 back in 1958 used a thinner vulcanized rubber mount that more powerful, and larger displacement motors tore into two parts allowing the motor to roll over and pull the throttle rod open.

In 1969 Chevy introduced a throttle cable to replace the solid rod that pulled the throttle open as the motor rotated due to engine torque.

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post #6 of 11 (permalink) Old 10-05-2016, 05:28 PM
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This is one of those subjects that is complicated and continue on to be puzzling, but I have had 2 original '69 Impala cars, one sitting right next to other and one had the Tall Mounts and the other the Short.

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post #7 of 11 (permalink) Old 10-06-2016, 12:54 AM
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All my GM parts books are packed up right now (we are moving in a few days) but if my memory is right, even knowing the year is not enough. It seems to me that in 1967 both styles were used on Impalas, and maybe other years as well. Also, I think maybe in some cases, the same year car may have a different mount on a 307 vs 327 or something like that. Be careful you get matching parts. I just can't help you more without my books, sorry.
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post #8 of 11 (permalink) Old 10-06-2016, 08:53 AM
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I also seem to remember Talls and Shorts on different years, but I cannot distinctively remember like I can on the '69's. In my collection of 23 '65 to '70 Full Size cars only about 1/4 of them had the Short Mounts, the rest have Talls. I am sold out of Shorts, which are the ones that are the most in demand. Looking back, I wish I had taken better records on which cars had which.

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post #9 of 11 (permalink) Old 10-07-2016, 06:50 AM Thread Starter
 
 
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Thanks for all the information gentlemen. I guess I'll have to check out some local swap meets or look at E-bay.
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post #10 of 11 (permalink) Old 10-07-2016, 08:26 AM
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Quote:
Originally Posted by mrgw67ss View Post
Thanks for all the information gentlemen. I guess I'll have to check out some local swap meets or look at E-bay.
Did you decide on the Short Mounts?

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post #11 of 11 (permalink) Old 10-07-2016, 09:17 AM
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If replacing missing mounts I would go with the shorter of the two (1968-'70) as it allows you to run the unbreakable interlocking mounts without raising the engine up.

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