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04-08-2009, 03:38 PM
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#1 |
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Registered User
Join Date: Nov 2000
Location: Wheatfield IN, USA
Posts: 1,112
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BBC Engine Damper ???
Have another engine question – Not to make this to long of post but the motor I have appears to be a 468 with an aftermarket forged crank and H-Beam rods. When I started to tear the truck down and I removed the flywheel I noticed it had no external weight on it like a normal 454, once I found out that it had a aftermarket crank I assumed this was OK it was just an internally balanced assembly (I am only assuming this as I really don’t know how to tell???? The front damper looked weird to me also, but I just figured it was a smaller aftermarket damper BUT a buddy was over the other night and started looking at it and said it was just a stock damper that someone took the outer portion off of. The damper has no timing marks on the outside and also has no external weight?? He stated I need to get a new damper. Would I get a damper for an externally balanced motor? Or does it even matter???
I will post pics of the damper tonight when I get back to my home computer but any additional help before then would be great Thanks guys
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1972 K5 Build - plans - LS3-6L80e-One Tons..... 1971 CREWMAX Build.....at body shop for couple more years 
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04-08-2009, 09:50 PM
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#2 |
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Active Member
Join Date: Oct 2006
Location: Ohio
Posts: 1,643
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Re: BBC Engine Damper ???
If you buy most aftermarket balancers the weights are removable - and yes I would use a non balanced unit if you believe your motor is internally balanced
I once had a big block that had the incorrect flex plate - it ran fine - everyone thought it should/would shake like crazy
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1968 SWB 454 + .040, 490HP x 540 FT pounds of Torque 10-1 Kb Forged pistons, recon rods w/ ARP wave loc bolts 781 heads Ported with 2.19/1.88 SSTvalves Lunati 60204 cam, Micro Trol lifters, Ported Edelbrock Performer Rpm manifold armor coated, Pertronix Triple Strike Ignition Holley 770 Street Avenger carb,Headers armor coated Built by Watson Ruppel Performance in Sarahsville Ohio. Hardshift Tranny Built Turbo 350,TSI 10" 3000 stall 12 Bolt Eaton Posi 4.10 Richmond Gears moser axles  18.5" x 31" Hoosier Pro Street Radials  ET Classic 5 Wheels - polished Power Steering, Power Brakes,Disc Brakes,Tach & Gauge Dash, Tilt,Factory Air (gone) Custom Paint & Body Work Special thanks to my wife, my son and my money tree 
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04-09-2009, 07:49 AM
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#3 |
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Registered User
Join Date: Nov 2000
Location: Wheatfield IN, USA
Posts: 1,112
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Re: BBC Engine Damper ???
Are the Summit brand dampers worth it or should I just get a TCI or Fluidamper?
__________________
1972 K5 Build - plans - LS3-6L80e-One Tons..... 1971 CREWMAX Build.....at body shop for couple more years
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04-09-2009, 03:06 PM
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#4 |
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The Engine Whisperer
Join Date: Sep 2006
Location: Ohio
Posts: 770
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Re: BBC Engine Damper ???
Summit brand dampers are pretty good dampers, thats what were running on 1968SWBBigBlocks 454, not a single problem, not a fluiddamper person, they put out to many problems.
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04-09-2009, 08:41 PM
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#5 |
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Active Member
Join Date: Oct 2006
Location: Ohio
Posts: 1,643
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Re: BBC Engine Damper ???
DO NOT use a fluid damper - the crank snouts on big blocks and fluid damper do not get along
__________________
1968 SWB 454 + .040, 490HP x 540 FT pounds of Torque 10-1 Kb Forged pistons, recon rods w/ ARP wave loc bolts 781 heads Ported with 2.19/1.88 SSTvalves Lunati 60204 cam, Micro Trol lifters, Ported Edelbrock Performer Rpm manifold armor coated, Pertronix Triple Strike Ignition Holley 770 Street Avenger carb,Headers armor coated Built by Watson Ruppel Performance in Sarahsville Ohio. Hardshift Tranny Built Turbo 350,TSI 10" 3000 stall 12 Bolt Eaton Posi 4.10 Richmond Gears moser axles 18.5" x 31" Hoosier Pro Street Radials ET Classic 5 Wheels - polished Power Steering, Power Brakes,Disc Brakes,Tach & Gauge Dash, Tilt,Factory Air (gone) Custom Paint & Body Work Special thanks to my wife, my son and my money tree
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