BiG Block Crank Bolts Help!!!!!
#2510519
06/19/18 08:59 PM
06/19/18 08:59 PM
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crabman173
OP
Unregistered
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crabman173
OP
Unregistered
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Mopar has discontinued big block crank bolts and washers-- yea I know ARP makes a $30 one I need you guys to gather up all you can scrounge and call Todd at Marsh Performance / Moparts Connection ( sponsor here) he needs all he can get for current engine projects-- I got a few rounded up today but he really needs as many as he can get as he supplies a few other builders --it is just a matter of these small items holding up production
Everybody look and then call Todd 336 283 0800 Many Thanks!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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Re: BiG Block Crank Bolts Help!!!!!
[Re: ]
#2510547
06/19/18 10:17 PM
06/19/18 10:17 PM
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Joined: May 2003
Posts: 96,664 On The Boat, On The Lake, Wa. ...
amxautox
Still Retired. Still Posting on Moparts. A Lot.
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Still Retired. Still Posting on Moparts. A Lot.
Joined: May 2003
Posts: 96,664
On The Boat, On The Lake, Wa. ...
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what bolts?
damper or flywheel/flexplate bolts?
I have 2 damper bolts and washers that I'll never need. 400/440 engines.
Tom
"Everyone should believe in something; I believe I'll go fishing."
-Henry David Thoreau
Men and fish are alike. They both get into trouble when they open their mouths
author unknown
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Re: BiG Block Crank Bolts Help!!!!!
[Re: ]
#2510595
06/19/18 11:57 PM
06/19/18 11:57 PM
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Joined: Dec 2005
Posts: 11,621 Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 11,621
Fulton County, PA
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3/4-16 G8 bolt in the correct length for your application/balancer. Have some around here.
If the results don't match the theory, change the theory.
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Re: BiG Block Crank Bolts Help!!!!!
[Re: CMcAllister]
#2510605
06/20/18 12:19 AM
06/20/18 12:19 AM
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Joined: Aug 2003
Posts: 43,230 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,230
Bend,OR USA
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3/4-16 G8 bolt in the correct length for your application/balancer. Have some around here. I'm thinking the stock BB dampener bolt 3/4x16 length is 1.25 under head or so I buy them by the dozen from my bolt shop
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: BiG Block Crank Bolts Help!!!!!
[Re: Cab_Burge]
#2510636
06/20/18 01:36 AM
06/20/18 01:36 AM
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Joined: Feb 2005
Posts: 20,185 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,185
PA.
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Tractor supply sells them by the pound
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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Re: BiG Block Crank Bolts Help!!!!!
[Re: A/MP]
#2510773
06/20/18 12:57 PM
06/20/18 12:57 PM
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Joined: Feb 2005
Posts: 20,185 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,185
PA.
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Go to Bolt Depot and there is another FMW Fasteners. Buy one or buy the box. Reasonable pricing. FMW also has a high quality thick washers too. I think by the responce in the post above yours that he would rather have stock bolts shipped to him.
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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Re: BiG Block Crank Bolts Help!!!!!
[Re: pittsburghracer]
#2510828
06/20/18 02:19 PM
06/20/18 02:19 PM
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Joined: Mar 2005
Posts: 2,644 North Carolina
sasquatch
master
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master
Joined: Mar 2005
Posts: 2,644
North Carolina
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Well it is like this. I have known Crabman for almost 20 years. Yesterday I call him up and we are yacking about all the stuff that Mopar has killed off or is overpriced. Much like the conversations on the board. The short crank bolts were twenty bucks and have now been discontinued. I asked him that if he had any (he has tons of stuff laying around) I could use them or if he might have another source with a part number so I could order me about 25 or so. (I use a lot and sell them as well). That post was his way of trying to help me out. I honestly do not need anyone sending me bolts but I appreciate the thoughts. He was trying to help. I only wanted a part number to buy new ones but also to make sure they are made of the correct material. Nobody, ever thinks about torquing the crank bolts. (mostly because they do not have a torque wrench big enough. Calculate the actual torque needed to CORRECTLY torque an ARP crank bolt with the right preload and stretch. Todd
Last edited by sasquatch; 06/20/18 02:21 PM.
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Re: BiG Block Crank Bolts Help!!!!!
[Re: ]
#2510872
06/20/18 03:49 PM
06/20/18 03:49 PM
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Joined: Dec 2005
Posts: 11,621 Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 11,621
Fulton County, PA
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Is a G8 or L9 not a good choice for some reason? Is the ARP piece more desirable? Serious question.
If the results don't match the theory, change the theory.
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Re: BiG Block Crank Bolts Help!!!!!
[Re: CMcAllister]
#2510882
06/20/18 04:16 PM
06/20/18 04:16 PM
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Joined: Feb 2005
Posts: 20,185 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,185
PA.
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Is a G8 or L9 not a good choice for some reason? Is the ARP piece more desirable? Serious question. It wouldn't have the antiquing looks from 40 years of beating on it with an inpact wrench. LOL
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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Re: BiG Block Crank Bolts Help!!!!!
[Re: ]
#2510883
06/20/18 04:16 PM
06/20/18 04:16 PM
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Joined: Jan 2003
Posts: 14,506 So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,506
So. Burlington, Vt.
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I don’t think the factory used anything special for bolts in that application.
In the MP engine manual, the specified TQ for the damper bolt is 135lbs.
The standard torque for lubed threads on a grade 2 fine thread 3/4-16 bolt is 144lbs.
The standard torque for grade 5 and 8 bolts are way higher.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: BiG Block Crank Bolts Help!!!!!
[Re: ]
#2510888
06/20/18 04:22 PM
06/20/18 04:22 PM
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Joined: Jan 2003
Posts: 17,880 S.E. Michigan
ZIPPY
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 17,880
S.E. Michigan
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If I need a replacement I just get a regular grade 8 bolt after verifying proper engagement and overall length.
I don't believe that stock bolt from 1958 is any kind of high tech whiz bang space age material.
Rich H.
Esse Quam Videri
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Re: BiG Block Crank Bolts Help!!!!!
[Re: ]
#2510900
06/20/18 04:47 PM
06/20/18 04:47 PM
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Joined: Dec 2005
Posts: 11,621 Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 11,621
Fulton County, PA
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I was just wondering if I had missed something. I've seen plenty of high end engines with a gold zinc G8 bolt in the crank. The 1 1/8" hex size is also handier than that 1 1/4" head.
If the results don't match the theory, change the theory.
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Re: BiG Block Crank Bolts Help!!!!!
[Re: pittsburghracer]
#2510901
06/20/18 04:49 PM
06/20/18 04:49 PM
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Joined: Dec 2005
Posts: 11,621 Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 11,621
Fulton County, PA
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Is a G8 or L9 not a good choice for some reason? Is the ARP piece more desirable? Serious question. It wouldn't have the antiquing looks from 40 years of beating on it with an inpact wrench. LOL Patina is big these days.
If the results don't match the theory, change the theory.
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Re: BiG Block Crank Bolts Help!!!!!
[Re: pittsburghracer]
#2510941
06/20/18 06:04 PM
06/20/18 06:04 PM
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Joined: Jun 2005
Posts: 6,257 gulfport, ms, west mi
rowin4
master
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master
Joined: Jun 2005
Posts: 6,257
gulfport, ms, west mi
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Is a G8 or L9 not a good choice for some reason? Is the ARP piece more desirable? Serious question. It wouldn't have the antiquing looks from 40 years of beating on it with an inpact wrench. LOL Even though I have been assembling engines for more than 40 years , never had one. Who had a impact 40 years ago? It hasn't been that long ago maybe 5 years that I got one.
it's ok to butt heads, just don't do it with a butthead
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Re: BiG Block Crank Bolts Help!!!!!
[Re: rowin4]
#2510948
06/20/18 06:10 PM
06/20/18 06:10 PM
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Joined: Feb 2005
Posts: 20,185 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,185
PA.
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Is a G8 or L9 not a good choice for some reason? Is the ARP piece more desirable? Serious question. It wouldn't have the antiquing looks from 40 years of beating on it with an inpact wrench. LOL Even though I have been assembling engines for more than 40 years , never had one. Who had a impact 40 years ago? It hasn't been that long ago maybe 5 years that I got one. What. Heck I still have a cheapie set of impac sockets that I paid 25.00 for that are 40 years old. And my son and I use our tools more than most. My S&K socket sets are over 46 years old.
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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