Re: 1970 440 HP Vs HP2 ??
[Re: InViolent]
#23250
01/26/06 02:16 PM
01/26/06 02:16 PM
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Posts: 15,134 Kelowna, B.C. Canada
DPelletier
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Quote:
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My 1970 U-code Cuda is stamped HP2 and is original #'s motor(partial vin on motor). Car has a harmonic balancer that resembles a cast crank. All 440-4 and 440-6 used the heavy six pack rods and in turn used a externally balanced crank....
Now wait a minute! I thought 70-71 only did the 440-4V HP use the same balancer as the 440+6. In 69, wasn't the 440+6 the only engine to use this configuaration? Did the Forged crank 440's in 72-74 use the same balancer?
I guess another wat to put it..."When did the 440-4 and 440+6 share the same rod/balancer part number?"
And finally...how can I identify a "Six-Pack" Rod?
Thanks
Answer: Always. The reason is that 69.5 6-Pack cars didn't use "6-Pack" rods, either! They used LY rods IIRC.
6 pack rods are 920 grams vs. 860 grams for the LY's. I believe the 6-Pack rods are part number 2950906.
Dave
1970 Super Bee 440 Six Pack
1974 'Cuda
2008 Ram 3500 Diesel
2006 Ram 3500 Diesel
2004.5 Ram 2500 Diesel
2003 Ram 3500 Diesel
2006 Durango Limited
[url] http://1970superbee.piczo.com [/url]
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Re: 1970 440 HP Vs HP2 ??
[Re: VCODE]
#23251
01/26/06 02:17 PM
01/26/06 02:17 PM
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Posts: 75,324 A gulag near you.
JohnRR
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Yes, That's like mine a sideways B
something on the block is oversize to fix a mess up during machining operation , has nothing to do with identifying if its a 6pk block or not .
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Re: 1970 440 HP Vs HP2 ??
[Re: AZ_A12_BEE]
#23252
01/26/06 02:19 PM
01/26/06 02:19 PM
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Joined: Apr 2005
Posts: 15,134 Kelowna, B.C. Canada
DPelletier
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Dang. Beat me to it. That's what happens when I post at work! Darn customers interrupting me in the middle of a post! Dave
1970 Super Bee 440 Six Pack
1974 'Cuda
2008 Ram 3500 Diesel
2006 Ram 3500 Diesel
2004.5 Ram 2500 Diesel
2003 Ram 3500 Diesel
2006 Durango Limited
[url] http://1970superbee.piczo.com [/url]
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Re: 1970 440 HP Vs HP2 ??
[Re: InViolent]
#23255
01/26/06 02:23 PM
01/26/06 02:23 PM
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Joined: Jan 2003
Posts: 75,324 A gulag near you.
JohnRR
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Thanks for the info. I feel smarter now for some reason
But I want to clarify....After 71, did all forged crank 440's use the heavy rods and external balancer?
all 440 hps did up into 73 , maybe 74 ?
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Re: 1970 440 HP Vs HP2 ??
[Re: InViolent]
#23256
01/26/06 03:11 PM
01/26/06 03:11 PM
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Joined: Apr 2005
Posts: 15,134 Kelowna, B.C. Canada
DPelletier
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Quote:
Thanks for the info. I feel smarter now for some reason
But I want to clarify....After 71, did all forged crank 440's use the heavy rods and external balancer?
Yes, but '70 to '75 (all HP and trucks), not '71 and up.
Dave
Last edited by DPelletier; 01/26/06 03:13 PM.
1970 Super Bee 440 Six Pack
1974 'Cuda
2008 Ram 3500 Diesel
2006 Ram 3500 Diesel
2004.5 Ram 2500 Diesel
2003 Ram 3500 Diesel
2006 Durango Limited
[url] http://1970superbee.piczo.com [/url]
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Re: 1970 440 HP Vs HP2 ??
[Re: JohnRR]
#23257
01/26/06 03:17 PM
01/26/06 03:17 PM
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Joined: Jan 2003
Posts: 75,324 A gulag near you.
JohnRR
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Yes, That's like mine a sideways B
something on the block is oversize to fix a mess up during machining operation , has nothing to do with identifying if its a 6pk block or not .
a B means the crank was turned .010 undersized on both the mains and the rods by the factory
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Re: 1970 440 HP Vs HP2 ??
[Re: DPelletier]
#23258
01/26/06 03:24 PM
01/26/06 03:24 PM
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Joined: Jan 2003
Posts: 5,135 Kingsburg Calif.
Quikshft
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master
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Kingsburg Calif.
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Quote:
........which means you can't use the rods and balancer to determine if a motor is a 6-Pack or not. All HP motors used "6-Pack" rods and balancers (which make you wonder why the heck they called them "6-Pack" rods).
Dave
I've wondered that myself more times than I have fingers to count on.
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Re: 1970 440 HP Vs HP2 ??
[Re: JohnRR]
#23262
01/26/06 03:32 PM
01/26/06 03:32 PM
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Joined: Jan 2003
Posts: 506
tampabucs1
super gas
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super gas
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my factory service manual says... maltese cross and X = .010 under crank with M-10 =all mains under .010 R-10 = all rods under .010 ????????????
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Re: 1970 440 HP Vs HP2 ??
[Re: InViolent]
#23264
01/26/06 04:22 PM
01/26/06 04:22 PM
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Joined: Oct 2003
Posts: 1,183 eganville ont
440beep
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super stock
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eganville ont
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hi the 70-71hp or hp2 440 6bbl 0r 4bbl are externally balanced . That's why on an automatic car there are weights on the torque converter and on a 4speed car it has a 10.5 inch flywheel with holes drilled in it. In '72-'75 the hp motors are neutrally balanced-they don't have any external balancing systems. Which is why it has a thin balancer on it.
Plymouth's gonna getcha!
There are 3 things that will live forever, cockroaches, Keith Richards, & slant 6 Dusters
71 gtx 440 4speed air grabber blue on blue with white vinyl roof
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Re: 1970 440 HP Vs HP2 ??
[Re: tampabucs1]
#23265
01/26/06 05:03 PM
01/26/06 05:03 PM
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Joined: Apr 2005
Posts: 15,134 Kelowna, B.C. Canada
DPelletier
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I Live Here
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Quote:
damper was different on 72 up....lighter low compression pistons...damper looks like early damper ....I have two original complete 73 hp 440 =forged crank , big rod ,low comp. pistons ,standard damper .. from 73 Road Runner and 73 Charger
Good info. I've been spending my time researching 6-Packs only, sorry for the error. So then it would seem that;
- '69 1/2 440-6 = LY rods, internally balanced
- '70-'71 440-6's AND HP 440's = 6 pack rods and externally balanced
- '72-'75 440 HP = 6 pack rods, internally balanced.
Dave
1970 Super Bee 440 Six Pack
1974 'Cuda
2008 Ram 3500 Diesel
2006 Ram 3500 Diesel
2004.5 Ram 2500 Diesel
2003 Ram 3500 Diesel
2006 Durango Limited
[url] http://1970superbee.piczo.com [/url]
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