1987 Dodge D150 with a 318.Block is cracked and leaking at a busted freeze plug.To big to fix.

Will a 360 use all the 318 accessories in the truck or is anything different(oil pan)?

Balance different from 318 to 360 (for converter's sake)?

Are the LA heads exhaust ports the same dimensions as the magnum exhaust ports?

Would an 87 truck tranny be a lockup converter?

Thanks in advance.

Oil pan is different. You will need a different converter(318 is internal balance, 360 is external La series engine), exhaust will work from 318 but you will lose some power. Mag heads exhaust are very similar to LA heads exhaust ports. Post more info about your plans....

(1) LA/LA yes 360 pan is different (rear half moon cutout dimention) all use the same front tcover so front half moon the same (LA) & as you know you'd want an identical rear sump (I'm assuming). (2) 360 LA would be externally balanced (use 360 converter or the B&M one with the cutout). (3) I think the mag ports are pretty much the same (wait for clarification) (4) dont know

My plans are still on the drawing board.
Find a 318 and have a minimal parts swap and get her running.
Find a 360 and adjust as needed.
The budget is tight but I don't mind spending money where I will get a return.Not looking for a race truck by any means.Just a dependable driver that has more pop than a stock 2 barrel.Headers,intake,4 barrel,and a mild cam are my thoughts.Nothing fancy,
It sounds like keeping a 318 is the easy route.Makes me wish I hadn't found a reman 360 longblock for $1,000.

2bbl 318's have smaller intake and exhaust ports than 4bbl 318's and 360's. Mostly because 4bbl 318's got 360 heads.

Odds are good the exhaust manifolds will be 360 port sized anyway. They are on cars of that time frame.

Other than a new oil pan and addressing the torque converter balance the swap is simple. All the accessories should swap over. The engine mounts will be different, the driver's side on a 318 is a bit wider than the 360, but a 1/2" nut works as a spacer to fix that.

My suggestion.....find a 5.2 Magnum engine. They are quite available. Balance is the same, it has Mag exhaust manifolds although the LA ones would fit and save exhaust dollars right now. The 5.2 by most accounts has as much power as a LA 360. I believe you can swap the entire front end of the motor, although I'd use an electric fuel pump as a pusher, it's a better idea.

When I fragged my first 318 I already had the LA 318 but it was really tempting to get a Mag motor and leave the LA in the garage. Eventually the tight budget won out.

R.