junkyard 360 magnum? big block?

junkyard 360 magnum? big block?

Seems I will want an engine with a flywheel to avoid purchasing the mopartsracing unit (thanks caferacerx). This issue is a little tricky. I read a bunch of stuff. Here's what I understand.

Due to external balancing I must use a magnum flywheel.
The magnum uses a bearing not a pilot bushing.
I may have to trim some off the 833 input shaft.
Those keeping EFI have to notch their LA bell to allow for the crank sensor. I should not as I can remove the sensor.

Here's what I'm not sure of.

Does the magnum bearing fit the 833 shaft or do I need to change over to a bushing as suggested in the post below?

Is there an issue with the type or size of clutch mating the magnum flywheel and LA bell?

I found this way back in archives. I did not find newer posts with clear answers but I may not be using the right terms.

http://www.forabodiesonly.com/mopar/archive/index.php/t-9356.html

Mark Nixon05-25-2006, 08:55 AM
I am having trouble getting my 4 speed tranny to bolt to my new magnum 360 crate motor. I seem to remember reading that you may need to cut the input shaft shorter on the tranny to fit magnum motors because the depth is shallower on magnum then on LA engines. Has anyone out there done this combo or can confirm my problem?

I have done this swap.
All you need is the crank bushing from an '89 Dakota, with a V-6 5 speed (generic application) and it'll bolt up fine, NO CUTTING OF THE INPUT SHOULD BE NECESSARY, but your situation may be different, as you're dealing with Mopar "Performance".
I installed a '73 833 behind a PRODUCTION '93 360 Magnum last year, using a '90 D-150 V-6 bellhousing, and it all basically bolted right together.
Of course, I had to find the right bearing retainer to mate the 2, but it wasn't so bad.

Mark.

Other tidbits:

Apparently one reason to not keep the serpentine system is the magnum's power steering pressure is wrong for an A body gear.

The magnum block uses different mounts but retains castings for the old mounts as well. This impressed me. Someone was thinking about retrofits. (see pic)

Quick online searching found only engines with 100k plus miles. I'm hoping for much lower and local.