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Car Forum / Pontiac / Pontiac Fiero / December 2005Engine Swap
Will a Fiero V6 engine from a 4 speed bolt up to an automatic transmission? I have an opportunity to buy a pair of 1986 Fiero's. One is a GT with a V6 and an automatic and one is a SE with a V6 and a 4 speed. The engine in the GT is totally shot and I would like to take the engine out of the SE and install in the GT. Seems like an easy swap.....is there anything that will make this harder than it seems? Jeff > Will a Fiero V6 engine from a 4 speed bolt up to an automatic transmission? > I have an opportunity to buy a pair of 1986 Fiero's. One is a GT with a V6 [quoted text clipped - 4 lines] > > Jeff Exact same engine, swap away. :) JazzMan  Signature********************************************************** Please reply to jsavage"at"airmail.net. Curse those darned bulk e-mailers! ********************************************************** "Rats and roaches live by competition under the laws of supply and demand. It is the privilege of human beings to live under the laws of justice and mercy." - Wendell Berry ********************************************************** > Will a Fiero V6 engine from a 4 speed bolt up to an automatic transmission? > I have an opportunity to buy a pair of 1986 Fiero's. One is a GT with a V6 [quoted text clipped - 4 lines] > > Jeff I had a GT with a bad motor too. What I did was take the V6 out of the GT and totally rebuilt it. I was real close to putting it back in the car when I got sick and ended up moving. Before I left, I had the car towed away but the motor is still on the engine stand in the garage in Los Angeles. Let me know if you'd like a good deal on it. I don't think I could get it crated up and shipped though. You'd have to pick it up. Block was rebuilt by reputable company that advertises racing parts in the magazines and builds high performance engines; pistons are new & fitted by same company, half the rods are new, the others were resized, new cam & lifters, oil pump, water pump, all the bearings of course, heads rebuilt by same company, plenum and valve covers are powder coated black crinkle with shiney cap screws (looks pretty good) and the shiney bare metal ridges cleaned up real well and look good. Oil pressure bypass valve is new... oh yeah, new crank. All the bolt-on parts like brackets, oil pan, and headers were tanked and painted. I have pictures of all the parts prior to assembly. > Will a Fiero V6 engine from a 4 speed bolt up to an automatic transmission? > I have an opportunity to buy a pair of 1986 Fiero's. One is a GT with a V6 [quoted text clipped - 4 lines] > > Jeff As Jazzman said, no problems swapping the motor, just remember you have to swap the ECM and wiring harness and (IIRC) the throttle cables are different. Since you have both cars. you'll have everything you need, just don't expect it to be an afternoon job. Have fun. John Stricker > Will a Fiero V6 engine from a 4 speed bolt up to an automatic > transmission? I have an opportunity to buy a pair of 1986 Fiero's. One is [quoted text clipped - 4 lines] > > Jeff Throttle cables will be the same. They're different between the duke's & the 6's is what you're thinking.... > As Jazzman said, no problems swapping the motor, just remember you have to > swap the ECM and wiring harness and (IIRC) the throttle cables are > different. Since you have both cars. you'll have everything you need, > just don't expect it to be an afternoon job. Have fun. >> Will a Fiero V6 engine from a 4 speed bolt up to an automatic >> transmission? I have an opportunity to buy a pair of 1986 Fiero's. One >> is a GT with a V6 and an automatic and one is a SE with a V6 and a 4 >> speed. The engine in the GT is totally shot and I would like to take the >> engine out of the SE and install in the GT. Seems like an easy >> swap.....is there anything that will make this harder than it seems? Yep, I misread, thought he was going from a Duke to a V6, thanks for catching it. Wiring harness is still different due to the lockup, IIRC. John Stricker > Throttle cables will be the same. They're different between the duke's & > the 6's is what you're thinking.... [quoted text clipped - 10 lines] >>> engine out of the SE and install in the GT. Seems like an easy >>> swap.....is there anything that will make this harder than it seems? Fer sure - std to auto will be different. Even A/C to non-A/C is different (so there's 4 harness's!). 85's are slightly different than the later years as well - so now that's 6 of 'em! Let's not even try to add in all the variants of the dukes.... > Yep, I misread, thought he was going from a Duke to a V6, thanks for > catching it. Wiring harness is still different due to the lockup, IIRC. > > John Stricker >> Throttle cables will be the same. They're different between the duke's & >> the 6's is what you're thinking.... >>> As Jazzman said, no problems swapping the motor, just remember you have >>> to swap the ECM and wiring harness and (IIRC) the throttle cables are >>> different. Since you have both cars. you'll have everything you need, >>> just don't expect it to be an afternoon job. Have fun. >>>> Will a Fiero V6 engine from a 4 speed bolt up to an automatic >>>> transmission? I have an opportunity to buy a pair of 1986 Fiero's. One >>>> is a GT with a V6 and an automatic and one is a SE with a V6 and a 4 >>>> speed. The engine in the GT is totally shot and I would like to take >>>> the engine out of the SE and install in the GT. Seems like an easy >>>> swap.....is there anything that will make this harder than it seems? > Fer sure - std to auto will be different. > Even A/C to non-A/C is different (so there's 4 harness's!). [quoted text clipped - 22 lines] > >>>> the engine out of the SE and install in the GT. Seems like an easy > >>>> swap.....is there anything that will make this harder than it seems? Just to make it clear to the OP: The engine is a direct swap, but you'll need to keep the original harness with the car. In other words, swap out the block/head/intake/exhaust assembly as a unit. Pick the better of the alternators, hoses, piping, etc. The harness stay with the original car. The axles are different, the rest of the suspension is the same. Recommend that you port out the exhaust manifolds on the donor motor, taking this opportunity to install either new bolts or Rodney's exhaust stud kit http://www.rodneydickman.com. One or more of the forward exhaust bolts is guaranteed to break, repairing them off the car is so easy. Oh, on the porting, when you look inside the ports it's obvious what needs to be done. JazzMan Signature********************************************************** Please reply to jsavage"at"airmail.net. Curse those darned bulk e-mailers! ********************************************************** "Rats and roaches live by competition under the laws of supply and demand. It is the privilege of human beings to live under the laws of justice and mercy." - Wendell Berry ********************************************************** |
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