B versus RB passenger side motor mount lug spacing?

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B versus RB passenger side motor mount lug spacing? #2563046 10/12/18 07:03 PM 10/12/18 07:03 PM
Joined: Aug 2003 Posts: 43,157 Bend,OR USA C Cab_Burge OP I Win
Cab_Burge OP I Win C Joined: Aug 2003 Posts: 43,157 Bend,OR USA	I'm in the middle of trying to break in the cams on two different RB motors, one is a 1976 440 motor home block and the other one is a 1972 413 C.I. H.D. truck industrial block. I borrow a friends engine run in stand to do this and he used a piece 7/16 I.D. thick wall tubing to use a single 7/16 bolt to go through the upper motor mount lugs, if fit fine on a 400 motor I ran on this stand two months ago but it won't fit on either of these two blocks due to it being to long for them on the passenger side I'm going to use a grinder to reduce the over all length of the tube on that side, the other side fits fine I did measure two 400 blocks and they are a lot wider between the lugs than either of the RB blocks Any one else run into this type problems on the B and RB blocks Last edited by Cab_Burge; 10/12/18 07:05 PM. Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Entire Thread
Subject	Posted By	Posted
B versus RB passenger side motor mount lug spacing?	Cab_Burge	10/12/18 11:03 PM
Re: B versus RB passenger side motor mount lug spacing?	CSK	10/12/18 11:28 PM
Re: B versus RB passenger side motor mount lug spacing?	Stanton	10/13/18 03:23 PM
Re: B versus RB passenger side motor mount lug spacing?	Cab_Burge	10/13/18 06:31 PM
Re: B versus RB passenger side motor mount lug spacing?	moparmarks	10/14/18 02:08 AM
Re: B versus RB passenger side motor mount lug spacing?	Cab_Burge	10/14/18 07:19 AM

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