sweptline big block swap

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!

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

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!

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.