67 with a 396 balancer question - Team Camaro Tech
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post #1 of 7 (permalink) Old Dec 30th, 08, 08:21 PM Thread Starter
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SCOTT
 
Join Date: Apr 2007
Location: FLA
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Question 67 with a 396 balancer question

i have a 67 camaro with a later model 402 big block with a 4 speed, i have the correct motor mounts and trans mount and i noticed the harmonic balancer all most hits the frame maybe there is a 1/4 of a inch there?
is this a problem and if it is can i change the balancer to a smaller diameter with a 3 groove pulley? i have a few extra dampers and none would fit.
thx scott
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post #2 of 7 (permalink) Old Dec 31st, 08, 08:54 AM
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Mike
 
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Re: 67 with a 396 balancer question

Chances are your balancer is 7-8" in diameter. You can get one 6.25" for more clearance, although 1/4" is plenty and not really a problem.


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post #3 of 7 (permalink) Old Dec 31st, 08, 11:20 AM Thread Starter
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SCOTT
 
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Re: 67 with a 396 balancer question

ohh sorry i meant the 3 groove pulley on the harmonic almost hits? still no problem?
thx scott sorry about my confusion
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post #4 of 7 (permalink) Old Jan 5th, 09, 09:51 AM Thread Starter
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SCOTT
 
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Re: 67 with a 396 balancer question

Anyone?
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post #5 of 7 (permalink) Old Jan 10th, 09, 02:20 PM
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Jeremy
 
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Re: 67 with a 396 balancer question

Heres your issue. Youre trying to put a BB where a factory SB was in place. Its almost like fitting a V8 in an S10 pickup truck (except WAY easier). Theres gona be some cutting involved. Ive had to cut the frame on a 81 in order to get headers into the engine comp. And when u cut u have to put reinforcement. So if its not a thick gauge metal, cut the whole area near the pulley and weld (or have it welded) to an obtuse angled "U" that would go underneath the pulley and allow it more clearance. Although i wish there was a picture that i could look at. Anyway you need MORE than 1/4" of clearance because big blocks can be fierce when it rocks and revs!!! Hope this helps!

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post #6 of 7 (permalink) Old Jan 10th, 09, 02:46 PM
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Tom
 
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Smile Re: 67 with a 396 balancer question

I have never heard of anyone cutting a First gen's subframe for clearance. 1st gens were made for big blocks. You might want to lower your transmission mount, to lift the front of the engine. Watch how close your distributor is to the firewall. It may become less ! If you go to a larger sway bar, this also may contact and it require the sway bar mounts to be shimmed. Your engine shouldn't move a 1/4 of an inch at the crankshaft. If you are concerned yet, install Energy Suspension Poly mounts and that engine isn't going to move.

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 7 (permalink) Old Jan 10th, 09, 03:04 PM
 
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Re: 67 with a 396 balancer question

1st Gen. BB cars need BB frame and rubber mounts, same w/ SB cars.

A BB will fit on all SB stuff not correctly tho, imho..

And I installed a hopped up 409 "W" engine in my '67 years and years ago on ALL my SB stuff fine!

Sucker looked stock!

pdq67



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