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sweptline big block swap #2122024
07/31/16 05:06 PM
07/31/16 05:06 PM
Joined: May 2004
Posts: 1,004
ohio
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bbtrux Offline OP
super stock
bbtrux  Offline OP
super stock
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Joined: May 2004
Posts: 1,004
ohio
Readying to drop a 440 in one of my 71's. Do I need a front or rear sump pan? Is axle clearance an issue with the correct big block pan if I lower the truck? The 318 in my other 71 rubs the back of the sump on the axle on sizeable bumps with the 70's 4wd front flat springs (was good for 3-4 inch drop, but waaay too stiff). Also, most of my pieces in inventory are motor home parts. Have exhaust manifolds 4041468 and 3769103. Any problem fitting these? the passenger sides a center dump, but the driver is more forward. Seems this should work, but wont know until I try unless someone has words of wisdom. Any advice and help is appreciated!

Re: sweptline big block swap [Re: bbtrux] #2122936
08/01/16 09:54 PM
08/01/16 09:54 PM
Joined: Jan 2003
Posts: 10,559
Freeport IL USA
poorboy Offline
I Live Here
poorboy  Offline
I Live Here

Joined: Jan 2003
Posts: 10,559
Freeport IL USA
I believe a 71 was a front sump. Someone will correct me. The good news is Dodge installed big blocks in 68-71 trucks. Factory part numbers and pictures should be around, actual pans might not be though. Gene

Re: sweptline big block swap [Re: poorboy] #2123295
08/02/16 11:34 AM
08/02/16 11:34 AM
Joined: May 2004
Posts: 1,004
ohio
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bbtrux Offline OP
super stock
bbtrux  Offline OP
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Joined: May 2004
Posts: 1,004
ohio
I have a front sump motor home pan (if its good once clean), just not sure if thats the right one for axle and tie rod clearance.Was an assumption on my part. Hoping the motor home block mounts work too. Fingers crossed!

Re: sweptline big block swap [Re: bbtrux] #2124470
08/03/16 11:49 PM
08/03/16 11:49 PM
Joined: Jan 2003
Posts: 8,485
Candler,NC / Myrtle Beach, SC
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JDMopar Offline
master
JDMopar  Offline
master
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Joined: Jan 2003
Posts: 8,485
Candler,NC / Myrtle Beach, SC
I had a factory BB 70 model D200 years ago, and it had a front sump pan. I can't remember where the exhaust manifolds dumped.







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