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#1 |
Registered User
Join Date: Oct 2003
Location: San Jose Ca.
Posts: 3,335
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6 3/4 or 8 inch balancer
I have to swap out my 6 3/4 balancer and I was up at summit looking around and I saw some 8 inch balancers. Which one would be better to use on a stock 350?
Thanks
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RIP to my son Dylan. 5/17/2002 - 8/18/2018 If you want to know more about rare forms of pediatric cancer or if you want to help fund pediatric cancer research, please check out the website for the non-profit I started. https://slothforpedcancer.org 68 build thread http://67-72chevytrucks.com/vboard/s...d.php?t=223234 |
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#2 |
Senior Member
![]() Join Date: Jun 2002
Location: Kansas
Posts: 702
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Re: 6 3/4 or 8 inch balancer
The 8" balancer will perform its function better than a 6 3/4" can. (dampen the engine harmonics)
In this case, biger is better. It can be argured that it costs some HP, tho minimal.
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The kid Build threads: 51 Jimmy http://67-72chevytrucks.com/vboard/s...d.php?t=154951 http://67-72chevytrucks.com/vboard/s...d.php?t=219902 http://www.classictrucks.com/feature...uck/index.html 68 C10 http://67-72chevytrucks.com/vboard/s...ad.php?t=50348 |
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#3 |
GEARHEAD
Join Date: Jan 2007
Location: CENTRAL,PA
Posts: 2,284
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Re: 6 3/4 or 8 inch balancer
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#4 |
Registered User
Join Date: Oct 2003
Location: San Jose Ca.
Posts: 3,335
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Re: 6 3/4 or 8 inch balancer
Ok what about the pulleys? Will they bolt up to a 8?
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RIP to my son Dylan. 5/17/2002 - 8/18/2018 If you want to know more about rare forms of pediatric cancer or if you want to help fund pediatric cancer research, please check out the website for the non-profit I started. https://slothforpedcancer.org 68 build thread http://67-72chevytrucks.com/vboard/s...d.php?t=223234 |
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#5 |
GEARHEAD
Join Date: Jan 2007
Location: CENTRAL,PA
Posts: 2,284
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Re: 6 3/4 or 8 inch balancer
Yes the center hub and pulley bolt pattern is the same on both.
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72 SWB 2WD MY PROJECT 72 LWB 4X4 FUTURE PROJECT SUBSCRIBE HEREBOARD VENDORS HERE NORWOOD MEET SURVIVOR! ![]() Last edited by RACINJASON22; 02-15-2007 at 02:42 PM. |
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#6 |
Senior Member
Join Date: Oct 2006
Location: Edmonton Alberta
Posts: 458
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Re: 6 3/4 or 8 inch balancer
just make sure to change timing mark tab
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#7 |
Registered User
![]() Join Date: Nov 2006
Location: KINGSPORT,TN.
Posts: 3,035
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Re: 6 3/4 or 8 inch balancer
whatever came off is what i,d put back on . and i,d use a GM brand back on it if possible.
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#8 |
Senior Member
Join Date: Oct 2006
Location: Edmonton Alberta
Posts: 458
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Re: 6 3/4 or 8 inch balancer
i use PIONEER brand balancers, good bang for the buck
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#9 |
Registered User
Join Date: Oct 2003
Location: San Jose Ca.
Posts: 3,335
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Re: 6 3/4 or 8 inch balancer
I picked up a 8 inch the other day. I took off the 6 3/4 last night and the rubber was falling out of it. I got a new tab for it to. I will install it here in the next day or so. The truck is sitting in the driveway and I got a bunch more to do to it before it hits the road again
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RIP to my son Dylan. 5/17/2002 - 8/18/2018 If you want to know more about rare forms of pediatric cancer or if you want to help fund pediatric cancer research, please check out the website for the non-profit I started. https://slothforpedcancer.org 68 build thread http://67-72chevytrucks.com/vboard/s...d.php?t=223234 Last edited by skokie; 02-16-2007 at 07:27 PM. |
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#10 |
Senior Member
Join Date: Oct 2006
Location: Edmonton Alberta
Posts: 458
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Re: 6 3/4 or 8 inch balancer
make sure you use an install tool (not a hammer)
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#11 | |
Senior Member
![]() Join Date: Dec 2006
Location: Studio City, Calif.
Posts: 2,873
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Re: 6 3/4 or 8 inch balancer
Quote:
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'69 GMC C2500 Custom Camper, 8 1/2' bed, New GM 350, NP 435 Close Ratio 4spd. Trans., 3.73 Dana-60 open.Camper and Trailer wiring, PS, PB, AC, tach , three gas tanks, stereo speakers, 2nd owner, Work-Truck supreme. Last edited by WorkinLonghorn; 02-16-2007 at 09:27 PM. |
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#12 | |
Long Fleet Club
Join Date: Aug 2006
Location: Deer Park, TX
Posts: 5,666
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Re: 6 3/4 or 8 inch balancer
Quote:
(Not recommended) Back when I started working on engines my first balancer install I taped it on untile i could get some threads started then impacted it the rest of the way. For the rest of the time I had that engine I had to soak the balancer bolt in red lock tight then install it becouse the impact stripped out the snout on the crank. ![]()
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Chris Meeks '69 Chevy Custom/10 Long Bed <-- Thread of the work I did before selling. Truck is now finished to the new owners design and running around. I was shown some pictures of the finished product. At least it survived the junk yard. FAQ Index by Krue Site Vendors Subscribe Here Forum Rules |
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#13 |
Registered User
![]() Join Date: Nov 2006
Location: KINGSPORT,TN.
Posts: 3,035
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Re: 6 3/4 or 8 inch balancer
most 8" balancer came from 4 bolt main engines and steel cranks
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#14 |
Account Suspended
Join Date: Mar 2003
Location: ** THE FALL GUY **CHICAGO IL
Posts: 5,883
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Re: 6 3/4 or 8 inch balancer
THIS IS THE TOOL for installing
Last edited by rage'nrat638; 07-12-2007 at 06:56 AM. |
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#15 |
Registered User
Join Date: Mar 2001
Location: Moore, Ok
Posts: 1,149
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Re: 6 3/4 or 8 inch balancer
skokie, It depends on the year of your truck and what options you have. On my 68 which was originally a 327 I had some interference with the power steering pump when I switched to a 8". I ended up having to switch to a later model power steering bracket to have enough clearance. If you don't have PS or already have the later model bracket the 8" should be fine and probably does a better job.
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72 SWB parts and pieces Oklahoma |
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#16 |
Registered User
Join Date: Oct 2003
Location: San Jose Ca.
Posts: 3,335
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Re: 6 3/4 or 8 inch balancer
I do have a installer tool that looks similar to what regenrat has there. I hope I dont run into the interference issue with the power steering. I may have to do a test fit to make sure.
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RIP to my son Dylan. 5/17/2002 - 8/18/2018 If you want to know more about rare forms of pediatric cancer or if you want to help fund pediatric cancer research, please check out the website for the non-profit I started. https://slothforpedcancer.org 68 build thread http://67-72chevytrucks.com/vboard/s...d.php?t=223234 |
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#17 |
Senior Member
Join Date: Oct 2006
Location: Edmonton Alberta
Posts: 458
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Re: 6 3/4 or 8 inch balancer
the other problem with the hammer install is beating up the thrust bearing in the crankshaft
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