ol'DixieJeep

2001 chrysler 4.0L block

4.2L AMC crank 3.895 stroke

Cylinder bore 3.905

Custom ICON forged and finished pistons +0.030 over

Jeep 6.125 rods

Custom Comp cams camshaft: xtreme 4x4 hydraulic flat tappet
Gross valve lift (int) .493 (exh) .512
Duration @ .006 tappet lift 262 270
Duration @ .050 218 226
Lobe lift .3080 .3200
Lobe seperation 111.0

2001 head with new valves and seats, Custom Full port and Polish.

everything i could buy that could be forged is there. so i can get double the life out of this monster.

thats all the specs i have for now.
Im picking this monster up on friday!!! well worth $3,100.

Donnie_K

let us know how it runs

ClaytonXJ

Sounds good! I expect video on Saturday. What are you doing for intake, exhaust and fuel?

ol'DixieJeep

my stock 2001 intake, airraid throttle body spacer, 3in snorkle. all that was already there.

im sticking with my tractor exhaust, its easy to change from the straight pipe to an international muffler and sounds great. thats an easy set up... from my down pipe it goes to 2.5in tube no muffler or resonator up the side of my front fender where i can band clamp the tops on. still has stock cats on manifold.

and i dont need a new fuel pump or regulator, the stock specs are pleanty. but im getting mustang injectors. some fancy kind my buddy has...


hopefully it'll be done by then. i just started pulling the engine thats still in there and im getting discouraged. i need a bud and some beers to speed this up.

ol'DixieJeep

ohh and next summer im switching fuel set up to propane dual fuel. so i can use propane or gasoline.

propane is definatly the way to go. huge gains across the board...

CoffeeCommando

I've been toying with the idea of the dual propane. What are your plans for that?

I have a 4.7 too. I recommend a new radiator and FlowKooler water pump. It's going to run hotter. Noticeable hotter.

When I get ready to put on the supercharger I'm putting in a new radiator and 180 degree thermostat. I'm in Florida and it's always pushing past 215 whenever it idles.

So yours is fuel injected. You plan to carburate it for the propane switch?

CoffeeCommando

I didn't replace my radiator and it started leaking when I was on a long trip last winter. I ended up broke down because the engine overheated a number of times as I kept filling it up with water. The leak was small, but by the third stop the water was gushing out of it. I had to rebuild the engine after I had a dealer install a new radiator for me in SC, then had to come pick it up the following week. The #6 piston cracked in the skirt and some of the metal got scored into the wall of the cylinder. One of the cam lobes wiped out too.
Needless to say those items got replaced.
Expensive ordeal all around.
You should also replace the fuel pump and 02 sensors while you're at it.
NTK ONLY for the 02, and Bosch ONLY for the fuel pump.
Anything else and you'll be replacing the 02 every other week, and the fuel pump every few months.

ol'DixieJeep

Im stauying fuel injected. i just have to change the distributer to the old style set up. that bypasses the ecm. and i know i can do the LP but i have to figure out how to make it dual fuel. i just gotta do some modding and find a good way to do it after i get my conversion kit.


ill remember the cooling issue... what compression is yours? also you may wanna go the route i did and get forged internals since you wanna boost yours. i did mine like that for longevity and nitrous.

CoffeeCommando

I'm running little boost. It's coming with a 5.5 PSI pulley but I'm thinking about getting a larger one. I just want a little.

Every setup I've seen for the propane hasn't been fuel injected. I thought it had to be carbureted?

ol'DixieJeep

got propane has a kit for fuel injected 4.0's

its not dual fuel. i have to figure that part out on my own.

Pigeon

Do you expect any issues with the 2001 head? They seem to have a history of cracking.

ol'DixieJeep

mine was cracked... drilled and expanded the crack and filled it in. I have coil packs though so i cant switch yet.

once i put the propane to it i have to put a regular old school distributer and change the head anyways. my buddy does all my custom head work for super cheap. i have a spare head in the garage incase it cracks real bad.

aj6

cool pic i found though id put it out there. hope your 4.7 goes well, i wish i had the money to do one..

ol'DixieJeep

look at that manifold!!!!!!!! holy ****!!!!!!

someones running the engine dyno a bit too high for a bit too long

ol'DixieJeep

i like that belt system