Need HELP! 99 4.7 swap to 5.7 hemi 3rd gen.

99hemi · Sep 20, 2011

i just swaped a 2008 5.7 hemi onto my 1999 chassis , bolt on / plug & play .

it was originaly on a 1999 , with a old challenger trans. 2wd .

i wanted it 4wd , so i put it in my 1999 , on the original trans . i have the right computer for the 2008 engine . but it has Holley carb onto it , can it work with this transmission , as the theres no where to plug the TCM sensor from the original trans. to the carburator where it used to be a throttle body for the injection .

im a rookie at dodge , if i dont make sens let me know .

i need help!

jhemi · Sep 20, 2011

welcome to the forrum!!! sounds like a hell of a project we want pics

swamp_life hemi 05 · Sep 20, 2011

Yes pics!! I would love to see this!! And welcome to the forum

Droid incredible 2 on the move!

The Assassin · Sep 20, 2011

Hopefully someone will chime in soon! Post up some pics!

wermbang · Sep 20, 2011

Welcome to the site.
Let me make sure I have this correct.
You took a 5.7L Hemi engine and transmission out of a Challenger and stuck it in your 99 Dodge Ram. Wouldn't the throttle body stay the same as the engine you put in? Like the hemi has its own throttle body, and the 5.9 has its own throttle body, and since you used the hemi engine thats the throttle body you should use. The 5.9 trans will not mount up to the hemi engine. I would like to see some pics of this swap

KGBIGCOUNTRY · Sep 20, 2011

Thinking the Trans will need a stand alone unit and the intake will have to be swapped to a cable mounted TB where as all the hemis are op by elec. Can you give us more details?

99hemi · Sep 23, 2011

thanks guys !

yea , i have a 1999 ram , i just installed the 2008 5.7 hemi in it . it bolted on the tranny with no problems . on the hemi i have it converted from injection to holley carburated .

my problem is , how can i manage the tranny to respond to the carburator , since the positioning sensor of the 99 4.7 is on injection throttle body . ?? my friend mechanic , is mounting a moded braket so that the sensor adapts to the movement of the carb . if that makes any senses !

i am told , that the 99 transmission , is electronic , and if i want it to shift / downshift or even keep the engine running at iddle .. then this mod is needed ! ?? makes sens??

ill put on some pics , ASAP !

99hemi · Sep 23, 2011

my mechanic , is wondering keeping the ECU from the 99 engine , just to control the transmission , would that work ? the computer would only be reading the tranny . nothing else . ??

The Assassin · Sep 23, 2011

So, run two ECU's?

quietpeen · Sep 23, 2011

Welcome to Ram Forum. Sounds like you got an nice project going there.

wermbang · Sep 23, 2011

So your 99 had a 4.7L? that had to be a conversion has well as they came with a 5.2 and the 5.9 for V8s. The 2000 Dakotas were the first with the 4.7l for trucks.

truckin151 · Sep 23, 2011

wermbang said:
So your 99 had a 4.7L? that had to be a conversion has well as they came with a 5.2 and the 5.9 for V8s. The 2000 Dakotas were the first with the 4.7l for trucks.[/QUOTE

It could be stock, production years and model years dont necessarily follow a physcal year. So it could have been bought late 99' but really been the 00' model year.

For the OP - I have seen a few shows where they have taken a modern vehicle and dropped a carb'd engine in and what you are describing as the part to plug the TCM sensor in for the TB (well in this case carb) sounds right. I think they just did it on HorsePower TV a couple weeks ago and that was all they had to use to get it to run with one another.

wermbang · Sep 23, 2011

4.7l were not offered in the 2nd gens
1994-2001 3.9 L (239 cu in) Magnum V6 175 hp (130 kW)[1] X
1994–2001 5.2 L (318 cu in) Magnum V8 220 hp (160 kW)[1] 295 lbf·ft (400 N·m)[1] Y
1995–1997 5.2 L (318 cu in) Natural Gas V8 200 hp (150 kW)[1] 430 lbf·ft (580 N·m)[1]
1994–1997 5.9 L (360 cu in) Magnum V8 230 hp (170 kW)[1] 325 lbf·ft (441 N·m)[1] Z
1998–2002 5.9 L (360 cu in) Magnum V8 245 hp (183 kW)[1] 335 lbf·ft (454 N·m)[1] Z
1994–2002 8.0 L (488 cu in)[5] Magnum v10 engine 300 hp (220 kW) [1] 450 lbf·ft (610 N·m)[1] W
1994–1995 5,883 cc (5.883 L; 359.0 cu in)[6] Cummins 12-valve Diesel I6 175 hp (130 kW) (manual), 160 hp (120 kW) (auto)[1] 420 lbf·ft (570 N·m) (manual), 400 lbf·ft (540 N·m) (auto)[1] C
1996–1998 5,883 cc (5.883 L; 359.0 cu in)[6] Cummins 12-valve Diesel I6 215 hp (160 kW) (manual), 180 hp (130 kW) (auto)[1] 440 lbf·ft (600 N·m) (manual), 420 lbf·ft (570 N·m) (auto) [1] D
1998–2000 5,883 cc (5.883 L; 359.0 cu in)[6] Cummins ISB 24-valve Diesel I6 235 hp (175 kW) (manual), 215 hp (160 kW) (auto)[1] 460 lbf·ft (620 N·m) (manual), 420 lbf·ft (570 N·m) (auto)[1] 6
2001–2002 5,883 cc (5.883 L; 359.0 cu in)[6] Cummins ISB 24-valve Diesel I6 235 hp (175 kW) (5 speed manual or automatic)[1] 460 lbf·ft (620 N·m) (5 speed manual or automatic),[1] 6
2001–2002 5,883 cc (5.883 L; 359.0 cu in)[6] Cummins ISB 24-valve Diesel I6 245 hp (183 kW) (High Output)[1] 505 lbf·ft (685 N·m) (High Output)[1] C or 7

99hemi · Sep 24, 2011

2 ecu's ..didnt know you could do so . like i said , im no mechanic haha

well ill post some pictures of before and after . its a nice project . got magnaflow 2 straight exhaust coming out of side doors SWEET! and getting some 33 , i dont want to get a lift kit . i might just put some rancho 9000 shocks also .

ordered flat black blitz paint and getting it black on black rims . gonna be a nice truck .

KGBIGCOUNTRY · Sep 24, 2011

Ya buy chance have any pics of the progress?

LB3711 · Sep 24, 2011

wermbang said:
4.7l were not offered in the 2nd gens
1994-2001 3.9 L (239 cu in) Magnum V6 175 hp (130 kW)[1] X
1994–2001 5.2 L (318 cu in) Magnum V8 220 hp (160 kW)[1] 295 lbf·ft (400 N·m)[1] Y
1995–1997 5.2 L (318 cu in) Natural Gas V8 200 hp (150 kW)[1] 430 lbf·ft (580 N·m)[1]
1994–1997 5.9 L (360 cu in) Magnum V8 230 hp (170 kW)[1] 325 lbf·ft (441 N·m)[1] Z
1998–2002 5.9 L (360 cu in) Magnum V8 245 hp (183 kW)[1] 335 lbf·ft (454 N·m)[1] Z
1994–2002 8.0 L (488 cu in)[5] Magnum v10 engine 300 hp (220 kW) [1] 450 lbf·ft (610 N·m)[1] W
1994–1995 5,883 cc (5.883 L; 359.0 cu in)[6] Cummins 12-valve Diesel I6 175 hp (130 kW) (manual), 160 hp (120 kW) (auto)[1] 420 lbf·ft (570 N·m) (manual), 400 lbf·ft (540 N·m) (auto)[1] C
1996–1998 5,883 cc (5.883 L; 359.0 cu in)[6] Cummins 12-valve Diesel I6 215 hp (160 kW) (manual), 180 hp (130 kW) (auto)[1] 440 lbf·ft (600 N·m) (manual), 420 lbf·ft (570 N·m) (auto) [1] D
1998–2000 5,883 cc (5.883 L; 359.0 cu in)[6] Cummins ISB 24-valve Diesel I6 235 hp (175 kW) (manual), 215 hp (160 kW) (auto)[1] 460 lbf·ft (620 N·m) (manual), 420 lbf·ft (570 N·m) (auto)[1] 6
2001–2002 5,883 cc (5.883 L; 359.0 cu in)[6] Cummins ISB 24-valve Diesel I6 235 hp (175 kW) (5 speed manual or automatic)[1] 460 lbf·ft (620 N·m) (5 speed manual or automatic),[1] 6
2001–2002 5,883 cc (5.883 L; 359.0 cu in)[6] Cummins ISB 24-valve Diesel I6 245 hp (183 kW) (High Output)[1] 505 lbf·ft (685 N·m) (High Output)[1] C or 7

more 2nd gen info 1994-2001 Dodge Ram pickup trucks

Need HELP! 99 4.7 swap to 5.7 hemi 3rd gen.

99hemi

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jhemi

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swamp_life hemi 05

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The Assassin

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99hemi

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