Hey guys. I have a 88 d250 with a 318 I’m looking to rebuild the engine and I’m wanting to get it to the 300-350hp range. It’s my first time doing this and I need some help getting started. Engine isn’t pulled yet and it runs. Truck has a 4 speed in it.
D250 with 318
- Thread starter NVREZ
- Start date
First thing get rid of the throttle body injection setup, go back to a carb
88 was first year for the EFI, and it was awful. Not to mention things like computers that are long NLA should you need one.
88 was first year for the EFI, and it was awful. Not to mention things like computers that are long NLA should you need one.
regularjay
Harmless Curmedgeon
350 HP out of a 318 is doable but expensive and you end up with a high winding motor not well suited for typical truck applications. Your almost there with a stock 360 Magnum. Consider a swap.
I had an 83 version and that truck was a beast. I
I towed often with it without issues enough for people who seen what I put that truck thru to think I was BSing, that there was no way I could only have had a 318 in it. But I did
After I put magnum heads on top, a stock replacement 360 2 barrel cam, and a performer intake manifold (standard, original version not air gap or any of the newer "fancy" versions) with an Edelbrock carb and a set of hooker super comp full length headers and true duals all the way to the back bumper it was night and day better yet.
That engine with nothing but new gaskets and fresh coat of paint went into my son's 72 Plymouth fury wagon and has been running that for 3 years now. That bottom end hadn't been touched since Mopar assembled it in 1983 and is now over 200k. Only now after all of those miles it's out, we're replacing the rod and main bearings but still not touching pistons and rings... #3 rod bearing was starting to come apart. And back in it will go. It still doesn't use any appreciable amount of oil so why should we? The wagon is a nice weather cruiser.
I towed often with it without issues enough for people who seen what I put that truck thru to think I was BSing, that there was no way I could only have had a 318 in it. But I did
After I put magnum heads on top, a stock replacement 360 2 barrel cam, and a performer intake manifold (standard, original version not air gap or any of the newer "fancy" versions) with an Edelbrock carb and a set of hooker super comp full length headers and true duals all the way to the back bumper it was night and day better yet.
That engine with nothing but new gaskets and fresh coat of paint went into my son's 72 Plymouth fury wagon and has been running that for 3 years now. That bottom end hadn't been touched since Mopar assembled it in 1983 and is now over 200k. Only now after all of those miles it's out, we're replacing the rod and main bearings but still not touching pistons and rings... #3 rod bearing was starting to come apart. And back in it will go. It still doesn't use any appreciable amount of oil so why should we? The wagon is a nice weather cruiser.
I have the frame of that truck in my garage having been stripped blasted and painted its mostly back together with all new suspension brakes and stainless steel lines... The body is in the paint shop and I finally got the engine that I am building for it to a machine shop only yesterday. Finding a machine shop anymore has been the hardest battle. There's none within an hour in any direction anymore. There used to be 3 within 8 miles of me