V6 (1994-2004) MustangsTechnical discussions on the 3.8L and 3.9L V6 torque monsters Sponsored by Optima Batteries
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yeah I suppose if u get a junkyard v8 block and rebuild it with good internals and heads then maybe u can get more power for less than a GT... but you gotta practically be a ace mechanic and fabricator too cause after you build the engine you gotta pull you k member and chop it up to move motor mounts and have a good welder to securely mount everything back. Then if you go fuel injection a new computer and a dyno tune session and find a wire harness. Then a new transmission cause the t5/4r70w trans most likely wont blot up to the new v8, and you'll have to re-size your drive shaft. then and after that buy a new rear end cause the 7.5 wont take that abuse from the v8... is it me or is this starting to get expensive? hmmm block mebe 500, forged internals 2000, cam 500, heads 2000-2500, the misc. bag 1500, wires/comp or carb another 500-1500, trans 500-1000 driveshaft work.. a good welder 1000 and a built rear end 2000.... so yep so with a minimum of around 12 grand, being a ace mechanic and pro fabricator and doing all install your self. oh wait suspension tak another 2 Gs on to that or u can take that minimum 14K and invest into ur 6 or get a gt and start adding things. point made? and yeah i probably was low balling a few of those numbers
V8 swap isn't THAT involved. You can get all the parts you need off a wrecked GT. It's just usually a waste of time/money once you are all done if you swap in a stock motor only making 260 at the flywheel. For the money, the sixer can be made faster.
I get sick of this v6 to v8 swap. If your not happy with what you've got then get rid of it (money permitting) For me, it wasn't the power gain of getting a GT, it was the exhaust sound! haha, sounds like an expensive exhaust but it's worth it to be happy. Plus, i'll be keeping this car forever
im working on my swap i havent completed it yet but in my car which is a 2000 model all of the wiring harness aside from what in the engine compartment is that same between my year v6 and my year gt the only thing different was a few plugs for the mach sound system that this particular GT had
so far i've only had to replace on the inside
thats it aside from removing the auto shifter, so reall its just gonna take the GT's engine/engine harness and the other accesories in the engine compartment + the hydroboost system because im pretty sure the V8 wont clear the vacuum booster if you can get a scrap GT same year for 1.5-2.5k and can do the installation yourself i'd say its worth it plus you'll have a car thats unique not just another GT
If you can get a donor car for cheap then do it, but if you will need to piece part sell it and get a gt, according to Kelley Blue Book you should be able to sell you car for a decent price and get a gt.
i got a 01 sixxer an i can get a v8 engine tranny but what else is needed?? ecu? the rear end? gas lines?
I converted mine with a low milage donor car. Cost me 2500 and a little over a full week of my life. If your gotta pay someone else to do the work then forget about it cause it's cheaper to buy a GT. I waited till my sixer died first though. Was planning to go back with a newer split port v6 but this turned out to cost about the same for me. Anyways it's alot of work and you have to be able to adapt.
You have to replace the engine and all accesories (alternator, starter etc.), tranny, ecu, ccrm, all the wiring around the motor, brake master cylinder, the rear end differential is recommended but not required (depends on the driver and what you want), the axle, the entire exhaust, fuel lines, and then it's gettin it all to work meaning at a minimum the ecu has to be reset.
96 Mustang 3.8 converted to 97 4.6
Hollowed Cats with Rear MIL Eliminators
Mach 1 Chin Spoiler
Cobra Style Smoked Headlamps
H&R Sport Springs
Wiring harness is the same huh? Good luck making those other two injectors work
the harness inside of the car is the same, the harness under the right fender disconnects from the harness leading inside of the car that needs to be changes as well everything leading into the engine compartment harness wise needs to be changed
before starting the swap me and my father looked over the wiring and matched it wire for wire with the v8 harness and plug for plug, my father has been doing mechanic work for 35 years and is the best mechanic in town and he's done plenty of swaps, just because everyone says "oh you need ALL of the harness blah blah cause its V8" doesn't mean you do, it means they aren't smart enough to check it out before replacing it cause all they know is the v8 isn't a v6 therefore the everything must be different
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