Re: 340 balancer question
[Re: dartphil]
#1962627
12/03/15 08:16 PM
12/03/15 08:16 PM
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Joined: Sep 2008
Posts: 656 Florida
CJD AUTOMOTIVE
mopar
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mopar
Joined: Sep 2008
Posts: 656
Florida
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Does anyone know if this balancer with the number A 128668 is for a 340 internally balanced or externally balanced ? I have a 73 with a cast crank but I been told this is the wrong balancer. Does it have the elliptical weight? If yes, cast crank external balanced.
Craig Scholl CJD Automotive, LLC Jacksonville, FL www.CJDAUTOMOTIVE.com904-400-1802 "I own a Mopar. I already know it won't be in stock, won't ship tomorrow, and won't fit without modification"
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Re: 340 balancer question
[Re: dartphil]
#1962637
12/03/15 08:31 PM
12/03/15 08:31 PM
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Joined: Jan 2003
Posts: 25,899 Rio Linda, CA
John_Kunkel
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,899
Rio Linda, CA
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The number you're looking at isn't a part number.
The INTERNET, the MISinformation superhighway
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Re: 340 balancer question
[Re: John_Kunkel]
#1962682
12/03/15 10:02 PM
12/03/15 10:02 PM
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Joined: Jan 2003
Posts: 5,894 Florida
Locomotion
master
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master
Joined: Jan 2003
Posts: 5,894
Florida
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An OEM 340 cast crank balancer/damper will actually say "For 340 Cast Crank Only" on the counterweight on the front. (The one on the right.) Aftermarket balancers/dampers can have the counterweight "hidden" on the back side.
Last edited by Locomotion; 12/03/15 10:04 PM.
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Re: 340 balancer question
[Re: soundcontrol]
#1971731
12/17/15 10:48 PM
12/17/15 10:48 PM
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Joined: Aug 2003
Posts: 43,243 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,243
Bend,OR USA
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Are there different balancers for 318, 340, 360, other than for cast and forged cranks? Yes, early, 318/340, pre 1970(1969 and earlier) had the timing marks on the balancer on the passenger side. Mopar decided to move the timing tab from the passenger side to the drivers along with switching the lower radaitor hose from the drivers side to the passenger side, why who knows All the 1971 360 came that way also and they where the first V8 motor Ma Mopar made externally balanced with a cast iron crankshaft 340 came externaly balanced with a cast crank also in 1972
Last edited by Cab_Burge; 12/18/15 04:57 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: 340 balancer question
[Re: Cab_Burge]
#1971997
12/18/15 10:09 AM
12/18/15 10:09 AM
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Joined: Jun 2013
Posts: 3 Sweden
soundcontrol
member
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member
Joined: Jun 2013
Posts: 3
Sweden
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Are there different balancers for 318, 340, 360, other than for cast and forged cranks? Yes, early, 318/340, pre 1971 had the timing marks on the balancer on the passenger side. Mopar decided to move the timing tab from the passenger side to the drivers along with switching the lower radaitor hose from the drivers side to the passenger side, why who knows All the 1971 360 came that way also and they where the first V8 motor Ma Mopar made externally balanced with a cast iron crankshaft 340 came externaly balanced with a cast crank also in 1972 When I look at balancers on Summits website, seems like its the same for all small block, except for internal or external balance. Will any small block balancer for internal, fit my 340 w. forged crank?
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Re: 340 balancer question
[Re: dartphil]
#1972072
12/18/15 12:48 PM
12/18/15 12:48 PM
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Joined: Jan 2003
Posts: 9,826 las vegas
70AARcuda
master
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master
Joined: Jan 2003
Posts: 9,826
las vegas
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Physically yes all small block balancers will fit...
but as noted above...some are for externally balanced engines...and the pre 1970 cars will have problems with the timing marks on the driver side were the bottom radiator hose will block the timing marks.
Tony
70 AARCuda Vitamin C 71 Dart Swinger 360 10.318 @ 128.22(10-04-14 Bakersfield) 71 Demon 360 10.666 @122.41 (01-29-17 @ Las Vegas) 71 Duster 408 (10.29 @ 127.86 3/16/19 Las Vegas)
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