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440 Crankshaft #1781020 03/16/15 12:41 AM 03/16/15 12:41 AM
Joined: Feb 2011 Posts: 145 B.C. Canada H hankcrank OP member
hankcrank OP member H Joined: Feb 2011 Posts: 145 B.C. Canada	Are 440 forged cranks from 1967 to 1971 all the same and the use of different harmonic dampers are the difference because of the use 6 pack rods and pistons?

Re: 440 Crankshaft [Re: hankcrank] #1781021 03/16/15 09:01 AM 03/16/15 09:01 AM
Joined: Mar 2006 Posts: 9,910 Eighty Four, PA B G Racing master
B G Racing master Joined: Mar 2006 Posts: 9,910 Eighty Four, PA	Yes all forged cranks from 67 to 71 used the standard balancer except the 6 pack. [IMG]http://i430.photobucket.com/albums/qq21/ajcasini/max_zpsdppwd9km.jpg[/IMG]

Re: 440 Crankshaft [Re: B G Racing] #1781022 03/16/15 01:58 PM 03/16/15 01:58 PM
Joined: Aug 2009 Posts: 1,318 Ohio J jlatessa pro stock
jlatessa pro stock J Joined: Aug 2009 Posts: 1,318 Ohio	Except all those with 6 pack RODS, not necessarily a 3 2-barrel engine, just to clarify... I think anything with HP after '69. Joe

Re: 440 Crankshaft [Re: hankcrank] #1781023 03/16/15 04:14 PM 03/16/15 04:14 PM
Joined: Aug 2003 Posts: 43,223 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,223 Bend,OR USA	I've seen two different looking crankshafts in the RB motors from 1966 to 1973, the early ones have a forging mark on all the rod throws going up from the mains, the later ones are missing those on the two center rod throws There both forged steel Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: 440 Crankshaft [Re: jlatessa] #1781024 03/17/15 11:40 AM 03/17/15 11:40 AM
Joined: Mar 2006 Posts: 9,910 Eighty Four, PA B G Racing master
B G Racing master Joined: Mar 2006 Posts: 9,910 Eighty Four, PA	The 6-pack style rods were in the 3X2 carb engines and in heavy duty truck and motor homes engines. [IMG]http://i430.photobucket.com/albums/qq21/ajcasini/max_zpsdppwd9km.jpg[/IMG]

Re: 440 Crankshaft [Re: B G Racing] #1781025 03/17/15 11:47 AM 03/17/15 11:47 AM
Joined: Jan 2003 Posts: 12,156 Benton, IL. D DaveRS23 Special needs idiot
DaveRS23 Special needs idiot D Joined: Jan 2003 Posts: 12,156 Benton, IL.	Quote: The 6-pack style rods were in the 3X2 carb engines and in heavy duty truck and motor homes engines. Didn't most or all the HP 440s in 71 get the bigger rods? Both of the 440s in my 4bbl 71 GTXs had the bigger ones and external balancing. Master, again and still

Re: 440 Crankshaft [Re: DaveRS23] #1781026 03/17/15 12:36 PM 03/17/15 12:36 PM
Joined: Aug 2009 Posts: 1,318 Ohio J jlatessa pro stock
jlatessa pro stock J Joined: Aug 2009 Posts: 1,318 Ohio	HPs in 1970 and up had the big rods and external balancing, if I remember right?? Joe

Re: 440 Crankshaft [Re: jlatessa] #1781027 03/17/15 02:57 PM 03/17/15 02:57 PM
Joined: Jan 2003 Posts: 25,871 Rio Linda, CA John_Kunkel Too Many Posts
John_Kunkel Too Many Posts Joined: Jan 2003 Posts: 25,871 Rio Linda, CA	'72-up 440's with the big rods (except the few '72 6-packs) didn't need external balance due to the reduced piston weight. The INTERNET, the MISinformation superhighway

Re: 440 Crankshaft [Re: DaveRS23] #1781028 03/18/15 01:54 PM 03/18/15 01:54 PM
Joined: Jan 2003 Posts: 75,043 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,043 U.S.S.A.	Quote: Quote: The 6-pack style rods were in the 3X2 carb engines and in heavy duty truck and motor homes engines. Didn't most or all the HP 440s in 71 get the bigger rods? Both of the 440s in my 4bbl 71 GTXs had the bigger ones and external balancing. For 70 and 71 the 440 HP 4bbl engine had the "6pk" rods too , and were external balanced . ALL of them ... 1969 6pk engines had LY rods originally.

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