motor swap confusion
 

hey everyone i have a 86 f-350 crew it has the orig motor 351w i have either a cleavland or mod that i want to put in it but oil pan wronge i need a rear sump but is that the only problem im going to run into?

Moved to proper forum.

The 351C and M have different bellhousings than the 351W, so you'll need to change the bellhousing, or the whole tranny if the bell is integrated into the tranny, as many of them are.

Motor mounts, etc.

if you want more power drop a 460 or stroke out your 351w to a 408. but do not drop in a 351m. they are a dog. the cleveland is a good motor but makes its power up hi in the rpm range which is not what you need for such a heavy truck.

I have to agree with everyone in that you really don't want to put a smog era engine in a truck that doesn't have overwheming power to begin with.

Whatever you dod, 351W rebuild, 408 stroker, 460 swap, be sure to get rid of the "spitty" (yeah, that's it, spitty) factory heads.

They weren't good on a 302 and the valve sizes are the same, if memory serves me correct, on the 351W which makes things worse.

ok well see i have the motor already it has hooker headers on it race cam flat top pistons raised intake and soon i will have a blower for it but i cant find an oilpan rear sump for it anywhere will my driveline bolt up to the trany?

it will bolt up if you have a clevland,i have heard 351m oil pans fit the clevland,but im not 100% sure, if thats true use a 4x4 pan as they are rear sump.