Alright put alot of thought behind this and am wanting to rebuild a 360 and figure if Im guna dump $$$ in it might as well stroke it if possible. Now I already did the search on this as best as I could on PS and couldnt find if anyone ever did a 408 with fuel injection. Not a big carb guy and want to keep the FI, but of course upgrade it. Has anyone seen a kit for this or know anyone who has done it? If not possible whats a few other upgrades for the 360 keeping fuel injection.
(03-10-2010 10:17 PM)2000ramsport Wrote: Alright put alot of thought behind this and am wanting to rebuild a 360 and figure if Im guna dump $$$ in it might as well stroke it if possible. Now I already did the search on this as best as I could on PS and couldnt find if anyone ever did a 408 with fuel injection. Not a big carb guy and want to keep the FI, but of course upgrade it. Has anyone seen a kit for this or know anyone who has done it? If not possible whats a few other upgrades for the 360 keeping fuel injection.
Thanks
I had an 89 Ramcharger with a throttle body injection 360. I rebuilt it with a Mopar 408 stroker crankshaft and a pretty big cam. It ran great, the machine shop that built the motor ordered a chip from jet for it. It also ran great without the chip. You could do the same for your truck and it would scream. Check out krcperformance.com
V10 would be nice but this will be the my first tear down and rebuild on an actuall application engine. also kinda want to stick with a 360 Magnum, just as bragging rights to my chev budds. Do you have any of part number or remember where you got anything for the 408?
Several members on here have built 408s. I know KB440 did. I don't know whether he lurks here very often, though.
I would skip KRC Performance. They are overpriced and generally, in my experience, not particularly friendly or helpful unless you're handing over $$$ to them.
The build list should be pretty easy enough...there are numerous sources for the 4" stroke crankshaft (Mopar, Ohio Crankshaft, etc.). You'll re-use your stock rods (have them machined/resized) and you'll need the corresponding pistons with the correct compression height to work with the rod/stroke combo. Again, whereever your source your crank from should be able to supply you pistons. You could buy an entire rotating assembly but I don't really think you need to...the stock 360 (6.123") rods are perfectly fine and durable.
At that point you'll have to figure out a camshaft, cylinder head and intake manifold combo. If you're going that far into building the engine, I would not re-use the stock cylinder heads. Not only are they not the best performance pieces, but they are prone to cracking. For the money, I think out of the box aluminum Edelbrock Magnum cylinder heads are hard to beat. Otherwise, the heavy-duty replacement iron castings that Hughes, etc., sell are very good as well...and much cheaper than the Edelbrocks. Depending on where (what engine speed) you want to make power, I would most likely go with a modified kegger intake or if you're going to be turning some rpm, an M1-type intake. You'll need to choose a camshaft to work with the intake/cylinder head combo and make power in the rpm range you're wanting to make power in, as well. You're probably well off to bump up to a larger fuel injector as well...probably a 24 lb/hr if not 30 lb/hr injector, both of which an be sourced easily and for fairly cheap by searching for Ford injectors on the Mustang websites and such.
Lastly, get the computer flashed by somebody like B&G. Give them a list of all that you've done to the engine (modifications) and they can reflash the computer to your combo much better than any chip or programmer will be able to maximize your engine build/modifications.
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RE: 360 stroker 408 guys
All the reasons above are the reason I decided to go to the V10 swap instead of a stroker. If you know a good machinist that can do the work cheap, it might be worthwhile, but it's going to be expensive. I think KB440 spent about $2000 without changing the heads or intake and he did it all but the machine work himself. Don't expect it to be cheap!!
I realize it isnt going to be cheap but I figure theres almost 100k on the truck and tranny and want to upgrade everything when it gets paid off in 1.5-2 years. Yes I do realize tranny needs replaced when I get this engine together, probably have a shop rebuild a 1ton autotranny w/shift kit.
Zac- when say ford injectors what do u mean? like mustang take offs will fit for the rams?? Sorry for the questions but wanting to put together a build list for this summer, so i can find another 360 and get somethings started and hopefully have it finished by next spring.
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RE: 360 stroker 408 guys
I did a lot of research on this last year when trying to decide between 408, V10 & Cummins. I'm assuming you read these threads, but they will answer a lot of your questions.
yeah, basically mustang take off-type injectors are what i am referring to. No mustang ever came with 30 lb/hr injectors from the factory but they are easily/readily available. Look for the older ford injectors...the stuff for the 5.0 powered cars (86-95) as the injectors for the 4.6 cars (96+) are a bit different.
24 lb/hr ford injectors are a light blue color at the top (where the wiring harness and fuel rail attach) and 30 lb/hr ford injectors are red. If you come across some that are more of a royal/dark blue, those are 36 lb/hr injectors and more than you'd need. I'd go with 30s.
you can run the factory mpi with a computer flash. i was going to do this very build but i figure why not use one of the many 440 blocks to start with. i was going to utilize my r/t heads and go with the mopar m1 intake. a shop here built a nasty one with a custom comp cam and a bunch of other goodies. it is a nice torquey motor.
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