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727 bb or sb easiest way to tell difference #1739671 01/26/15 10:52 PM 01/26/15 10:52 PM
Joined: Dec 2003 Posts: 628 Denison,Ia. C Cuda367 OP mopar
Cuda367 OP mopar C Joined: Dec 2003 Posts: 628 Denison,Ia.	I guess I am looking for difference between top two bolt holes. The one I have measures 7 5/16.

Re: 727 bb or sb easiest way to tell difference [Re: Cuda367] #1739672 01/26/15 11:05 PM 01/26/15 11:05 PM
Joined: Dec 2005 Posts: 11,531 Fulton County, PA C CMcAllister Mr. Helpful
CMcAllister Mr. Helpful C Joined: Dec 2005 Posts: 11,531 Fulton County, PA	Looks like C-C on top holes for BB is 6.42. SB is 7.76. If the results don't match the theory, change the theory.

Re: 727 bb or sb easiest way to tell difference [Re: Cuda367] #1739673 01/26/15 11:07 PM 01/26/15 11:07 PM
Joined: Apr 2013 Posts: 345 Nebraska 4 451Cuda enthusiast
451Cuda enthusiast 4 Joined: Apr 2013 Posts: 345 Nebraska

Re: 727 bb or sb easiest way to tell difference [Re: 451Cuda] #1739674 01/27/15 12:28 AM 01/27/15 12:28 AM
Joined: May 2003 Posts: 1,751 Graham, WA P Polarapete top fuel
Polarapete top fuel P Joined: May 2003 Posts: 1,751 Graham, WA	The SB 727 has a smaller dust shield because of the two large bolt holes at 7 and 5 o'clock for the support struts to the block. Easy enough. No reason to measure anything, though the 727 was made for the AMC V-8, too and I really don't care about those 1986 Dodge Ramcharger 440 2wd, Bracket Racer Under Construction 1998 Ram 2500 QuadCab, new daily driver. 2008 Honda Element 2014 Carry-On 7x14 Cargo Trailer

Re: 727 bb or sb easiest way to tell difference [Re: Polarapete] #1739675 01/27/15 12:39 AM 01/27/15 12:39 AM
Joined: Sep 2003 Posts: 19,355 north of coder moparx "Butt Crack Bob"
moparx "Butt Crack Bob" Joined: Sep 2003 Posts: 19,355 north of coder	you don't have to measure any thing if you just look at the starter nose placement. the smallblock nose is at approximately 4:30, while the big block placement is at 3:00. easy peasy.

Re: 727 bb or sb easiest way to tell difference [Re: moparx] #1739676 01/27/15 01:05 AM 01/27/15 01:05 AM
Joined: Dec 2003 Posts: 628 Denison,Ia. C Cuda367 OP mopar
Cuda367 OP mopar C Joined: Dec 2003 Posts: 628 Denison,Ia.	Thank guys! saved me a lot of lifting and at 68 that is important!!!!

Re: 727 bb or sb easiest way to tell difference [Re: Cuda367] #1739677 01/27/15 04:41 PM 01/27/15 04:41 PM
Joined: Jan 2003 Posts: 25,750 Rio Linda, CA John_Kunkel Too Many Posts
John_Kunkel Too Many Posts Joined: Jan 2003 Posts: 25,750 Rio Linda, CA	Easiest way to tell is to look at the bottom four bolts on the bellhousing face, BB has four equal sized bolt holes while the SB has two small and two large. 8409731-Bllhsngswithtext.JPG (1099 downloads)

Re: 727 bb or sb easiest way to tell difference [Re: Polarapete] #1739678 01/30/15 01:17 AM 01/30/15 01:17 AM
Joined: Jan 2003 Posts: 4,664 Newfoundland M mopar_man master
mopar_man master M Joined: Jan 2003 Posts: 4,664 Newfoundland	Quote: The SB 727 has a smaller dust shield because of the two large bolt holes at 7 and 5 o'clock for the support struts to the block. Easy enough. No reason to measure anything, though the 727 was made for the AMC V-8, too and I really don't care about those Yes 727 was made for the AMC crowd , however the starter was on the chevy side .

Re: 727 bb or sb easiest way to tell difference [Re: mopar_man] #1739679 01/31/15 02:18 PM 01/31/15 02:18 PM
Joined: Jan 2003 Posts: 11,912 APACHE JUNCTION AZ J Joesixpack I Live Here
Joesixpack I Live Here J Joined: Jan 2003 Posts: 11,912 APACHE JUNCTION AZ	lol I.H.C had a 727 also!

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