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Crank bolt/flexplate. #190558
01/11/09 04:03 PM
01/11/09 04:03 PM
Joined: Dec 2008
Posts: 1,200
UK
6
602heavy Offline OP
pro stock
602heavy  Offline OP
pro stock
6

Joined: Dec 2008
Posts: 1,200
UK
Anyone give me the bolt size?.........Callies 8 bolt crank , seems the stock bolts i got are too small , just ready to drop the motor back in & realised the bolts are different than a 6 bolt crank.

Re: Crank bolt/flexplate. [Re: 602heavy] #190559
01/11/09 05:45 PM
01/11/09 05:45 PM

A
Anonymous
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The six bolt crank is smaller bolts..The eight bolt hemi bolts is what you need..Jegs has mopar and ARP sets..They are not cheap...$40-50 bucks..

Re: Crank bolt/flexplate. [Re: 602heavy] #190560
01/11/09 06:55 PM
01/11/09 06:55 PM
Joined: Jan 2003
Posts: 16,917
NC
440Jim Offline
I Live Here
440Jim  Offline
I Live Here

Joined: Jan 2003
Posts: 16,917
NC
The 6-bolt cranks use 7/16, the 8-bolt cranks use 1/2-20


1993 Daytona, 5.50 at 130mph (1/8) 1.19 sixty ft (PG). Link to 572 B1 - Part 1
Re: Crank bolt/flexplate. [Re: 440Jim] #190561
01/11/09 07:41 PM
01/11/09 07:41 PM
Joined: Dec 2008
Posts: 1,200
UK
6
602heavy Offline OP
pro stock
602heavy  Offline OP
pro stock
6

Joined: Dec 2008
Posts: 1,200
UK
Thanks , will pick some up.


Re: Crank bolt/flexplate. [Re: 602heavy] #190562
01/11/09 07:52 PM
01/11/09 07:52 PM
Joined: Mar 2006
Posts: 9,910
Eighty Four, PA
B G Racing Offline
master
B G Racing  Offline
master

Joined: Mar 2006
Posts: 9,910
Eighty Four, PA
Be careful,get the thin head Mopar bolts if you can.Standard bolts and even ARPs can hit on the converter and will cause it to keep loosening up and also wear into the converter face.

Re: Crank bolt/flexplate. [Re: B G Racing] #190563
01/11/09 08:37 PM
01/11/09 08:37 PM
Joined: Dec 2008
Posts: 1,200
UK
6
602heavy Offline OP
pro stock
602heavy  Offline OP
pro stock
6

Joined: Dec 2008
Posts: 1,200
UK
Thanks

Re: Crank bolt/flexplate. [Re: 602heavy] #190564
01/11/09 09:54 PM
01/11/09 09:54 PM
Joined: Aug 2003
Posts: 43,007
Bend,OR USA
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Cab_Burge Offline
I Win
Cab_Burge  Offline
I Win
C

Joined: Aug 2003
Posts: 43,007
Bend,OR USA
I have heard of racers useing regular grade 8 bolts and grinding the heads down to clear the back of the converter, they do need to be thinner than the stock thickness on regular bolts how much I don't know


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)






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