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B&M solid flexplate to crankshaft bolts-Torque? #933912 02/21/11 04:17 PM 02/21/11 04:17 PM
Joined: Jul 2005 Posts: 1,301 Penna 7 70satelliteguy OP pro stock
70satelliteguy OP pro stock 7 Joined: Jul 2005 Posts: 1,301 Penna	I am putting together a Big Block motor with a Callies 8 bolt crankshaft and a B&M solid flexplate. What do I torque the bolts to? Thanks Mike

Re: B&M solid flexplate to crankshaft bolts-Torque? [Re: 70satelliteguy] #933913 02/21/11 04:32 PM 02/21/11 04:32 PM
Joined: Aug 2003 Posts: 43,286 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,286 Bend,OR USA	The Mopar service manauls torque specs. call for 75 FT. Lbs on the 1/2 x 20 crankshaft to flex plate bolts and 55 ft. lbs on the 7/16 bolts on the flexplate to converters If your not using the stock factory grade eight bolts maybe you should contact the bolt maker that your using and get the specs. they want you to use on thier products Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: B&M solid flexplate to crankshaft bolts-Torque? [Re: Cab_Burge] #933914 02/21/11 04:39 PM 02/21/11 04:39 PM
Joined: Feb 2007 Posts: 6,295 U.S. M moparniac master
moparniac master M Joined: Feb 2007 Posts: 6,295 U.S.	I could have sworn my ARP directions said 95ft lbs with their lube... id double check that though! Mopar Performance

Re: B&M solid flexplate to crankshaft bolts-Torque? [Re: moparniac] #933915 02/21/11 04:48 PM 02/21/11 04:48 PM
Joined: Jul 2008 Posts: 30,474 Florida STAYcation dOc ! The village idiot's idiot
dOc ! The village idiot's idiot Joined: Jul 2008 Posts: 30,474 Florida STAYcation	The proper-torque-"police" are probably gonna me .... ....... but all I have ever done is use a little blue or red locktite and then give them a little smack with a rubber hammer using a wrench or rachet.

Re: B&M solid flexplate to crankshaft bolts-Torque? [Re: 70satelliteguy] #933916 02/21/11 05:12 PM 02/21/11 05:12 PM
Joined: Feb 2011 Posts: 146 B.C. Canada H hankcrank member
hankcrank member H Joined: Feb 2011 Posts: 146 B.C. Canada	The service manual I have says 70 lbs. for 69-71 Hemi. Since you have an 8 bolt crank which is Hemi I would use this torque value. Also grade of bolts and thread lube changes specs depending on the supplier.Hope this does not confuse you ..it just seems there are so many different answers to a one simple question. I can't even remember what spec I used and I just installed a B&M flex plate on my 8 bolt crank 2 weeks ago lol.

Re: B&M solid flexplate to crankshaft bolts-Torque? [Re: hankcrank] #933917 02/21/11 07:30 PM 02/21/11 07:30 PM
Joined: Jul 2005 Posts: 1,301 Penna 7 70satelliteguy OP pro stock
70satelliteguy OP pro stock 7 Joined: Jul 2005 Posts: 1,301 Penna	Thanks Guy's. They are the 7/16 ARP Bolts. I thought they were supposed to be torqued to 80-90 ft. lbs. but it has been 2 years ago that I last installed them before teardown this year! Mike

Re: B&M solid flexplate to crankshaft bolts-Torque? [Re: 70satelliteguy] #933918 02/21/11 07:45 PM 02/21/11 07:45 PM
Joined: Nov 2003 Posts: 6,293 Rock Springs Bob_Coomer master
Bob_Coomer master Joined: Nov 2003 Posts: 6,293 Rock Springs	red locktite + what ever my 1/2 impact hitting hard for 4-5 seconds after being tight.. Never had a problem. Id imagine this is one place where most dont use a torque wrench. but Im diff from most [color:"red"]65 Hemi Belvedere coming soon [/color] [color:"#00FF00"]557" Indy engine 1.07 60ft 144mph in the 8th 2100 lbs package [/color]

Re: B&M solid flexplate to crankshaft bolts-Torque? [Re: Bob_Coomer] #933919 02/21/11 07:48 PM 02/21/11 07:48 PM
Joined: Jul 2008 Posts: 30,474 Florida STAYcation dOc ! The village idiot's idiot
dOc ! The village idiot's idiot Joined: Jul 2008 Posts: 30,474 Florida STAYcation	4-5 seconds ? ... ... the "POLICE" are gonna come after CHOO !

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