Balancer vs Hub For a SBC 6-71
Moderator: John_Heard
Balancer vs Hub For a SBC 6-71
I will be putting together a 350 with a sbc crank with a bbc hub.
Still leary about putting a second keyway in.
My question is for years I had a sbc 350 stock gm crank with a hub (no balancer).
looking for recomendations on running either a balancer or a Hub before I get the new crank balanced.
BDS says to run a hub.my old motor survived for 20 years with a hub.In that Time I have seen several people have problems with there bolts loosening up or balancer issues on street -strip applications.
any advice or thoughts would be great
Still leary about putting a second keyway in.
My question is for years I had a sbc 350 stock gm crank with a hub (no balancer).
looking for recomendations on running either a balancer or a Hub before I get the new crank balanced.
BDS says to run a hub.my old motor survived for 20 years with a hub.In that Time I have seen several people have problems with there bolts loosening up or balancer issues on street -strip applications.
any advice or thoughts would be great
Street car Old motor 10.80 @122 1.49 60' 355 6-71 stock gm heads stock rocker arms block hugger headers 1-5/8"x2.5" collector
the car ran in the 9's in the 60's with an olds motor.
the car ran in the 9's in the 60's with an olds motor.
- CDR Performance
- Posts: 147
- Joined: Tue Mar 02, 2010 7:41 pm
- Location: Indianapolis, Indiana
Re: Balancer vs Hub For a SBC 6-71
GMC style blower, don't bother with a damper. Just put a hub on it.
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Re: Balancer vs Hub For a SBC 6-71
X2CDR Performance wrote:GMC style blower, don't bother with a damper. Just put a hub on it.
Re: Balancer vs Hub For a SBC 6-71
Dunno if it's any help to you, but I'm running dual keyways with an ATI hub on a BBC - see pix below - I would suspect your SBC would'nt be all that different, though maybe I don't understand the question - hub vs balancer...
1969 ProStreet Camaro RS Best 9.75@139 1.46 60'
Blown 427 BBC, TH400 w/Brake, Back-Half Ladderbar
Narrowed 12-Bolt, 4.10 Gears, Spool, Moser 33 Spline
http://www.marsh-racing.com/harrys_camaro-1.htm
Blown 427 BBC, TH400 w/Brake, Back-Half Ladderbar
Narrowed 12-Bolt, 4.10 Gears, Spool, Moser 33 Spline
http://www.marsh-racing.com/harrys_camaro-1.htm
- CDR Performance
- Posts: 147
- Joined: Tue Mar 02, 2010 7:41 pm
- Location: Indianapolis, Indiana
Re: Balancer vs Hub For a SBC 6-71
When running a GMC style blower there is no need to have a damper.
A drive hub, pulley and the belt will absorb most if no all the harmonic.
Something like this is all you need.
and maybe one of these...
A drive hub, pulley and the belt will absorb most if no all the harmonic.
Something like this is all you need.
and maybe one of these...
CDR PERFORMANCE
The Custom Engine Shop
Dart - Callies - BRC - Oliver - BME - Custom Cams - T&D - Trend - JGS - BorgWarner - SuperNatural - EV - CSU - C&S - BS3
http://www.cdrperformance.biz
The Custom Engine Shop
Dart - Callies - BRC - Oliver - BME - Custom Cams - T&D - Trend - JGS - BorgWarner - SuperNatural - EV - CSU - C&S - BS3
http://www.cdrperformance.biz
Re: Balancer vs Hub For a SBC 6-71
I will need one for a sbc crank with a big block snout
looking at the BDS #105 anything better
looking at the BDS #105 anything better
Street car Old motor 10.80 @122 1.49 60' 355 6-71 stock gm heads stock rocker arms block hugger headers 1-5/8"x2.5" collector
the car ran in the 9's in the 60's with an olds motor.
the car ran in the 9's in the 60's with an olds motor.
- Dave Koehler
- Posts: 30
- Joined: Sat Oct 29, 2005 8:28 am
- Location: Urbana, IL, USA
- Contact:
Re: Balancer vs Hub For a SBC 6-71
I have no problem going either way on the hub/balancer issue. Most of the time though we have to go with the hub...and no alarming issues in decades.
These guys have everything. http://www.rcdengineering.com
Oh, and btw, definitely do the second key way AND get the front crank support if you plan on more than 10 lbs of boost. The BB snout is a good thing but...................
These guys have everything. http://www.rcdengineering.com
Oh, and btw, definitely do the second key way AND get the front crank support if you plan on more than 10 lbs of boost. The BB snout is a good thing but...................
Dave Koehler
Fuel Injection - Nitrous Master Software
http://www.koehlerinjection.com
"Never let a race car know you are in a hurry"
Fuel Injection - Nitrous Master Software
http://www.koehlerinjection.com
"Never let a race car know you are in a hurry"
- CDR Performance
- Posts: 147
- Joined: Tue Mar 02, 2010 7:41 pm
- Location: Indianapolis, Indiana
Re: Balancer vs Hub For a SBC 6-71
X2 I concurDave Koehler wrote:I have no problem going either way on the hub/balancer issue. Most of the time though we have to go with the hub...and no alarming issues in decades.
These guys have everything. http://www.rcdengineering.com
Oh, and btw, definitely do the second key way AND get the front crank support if you plan on more than 10 lbs of boost. The BB snout is a good thing but...................
CDR PERFORMANCE
The Custom Engine Shop
Dart - Callies - BRC - Oliver - BME - Custom Cams - T&D - Trend - JGS - BorgWarner - SuperNatural - EV - CSU - C&S - BS3
http://www.cdrperformance.biz
The Custom Engine Shop
Dart - Callies - BRC - Oliver - BME - Custom Cams - T&D - Trend - JGS - BorgWarner - SuperNatural - EV - CSU - C&S - BS3
http://www.cdrperformance.biz
Re: Balancer vs Hub For a SBC 6-71
this motor survived about 20 years with a hub
BDS recomended a hub and so did Bryant to keep as much weight off of the front.
so with your advice and theirs looks like I will stick with the hub setup and order a hub that will fit the bbc snout
thanks
BDS recomended a hub and so did Bryant to keep as much weight off of the front.
so with your advice and theirs looks like I will stick with the hub setup and order a hub that will fit the bbc snout
thanks
Street car Old motor 10.80 @122 1.49 60' 355 6-71 stock gm heads stock rocker arms block hugger headers 1-5/8"x2.5" collector
the car ran in the 9's in the 60's with an olds motor.
the car ran in the 9's in the 60's with an olds motor.
- Dave Koehler
- Posts: 30
- Joined: Sat Oct 29, 2005 8:28 am
- Location: Urbana, IL, USA
- Contact:
Re: Balancer vs Hub For a SBC 6-71
I should have mentioned that when using a balancer I only use ATI.
Dave Koehler
Fuel Injection - Nitrous Master Software
http://www.koehlerinjection.com
"Never let a race car know you are in a hurry"
Fuel Injection - Nitrous Master Software
http://www.koehlerinjection.com
"Never let a race car know you are in a hurry"
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