The videos below discuss the unlimited horse power options with the "F-body" platform donor car.
If you want your motor to be turned long-ways with the body of the car you can use a transmission out of a 1979-1985 (Note: we are not exactly sure of the years that work so verify before you buy a low mileage parts car for this project) Cadillac Eldorado or Buick Riviera or Olds Toronado for example because that transmission allowed the motor in these cars to be placed long ways with the car but the drive axles are turning the front wheels therefore you could for example put a big block Chevy 454, v8 motor in a Fiero and add the above listed type transmission which would allow the rear Fiero wheels to turn with the motor long ways in the body of the Fiero which is like the real deal.
Note: Do you want an "in-line", V8 motor installed in the rear of your supercar replica vehicle? (Note: That means the V8 motor would run long-ways with the car from front to rear and not run side to side. Suggestion of an easy and inexpensive V8 installed in a Fiero donor car.
The easiest Fiero to V8 motor for installing, wiring, and price use an in-line V8, GM, 350 Cubic-inch, throttle body motor and add headers to the sides of the motor and a stage-two, cam-shaft, to give it a great sound and more horse power. Also add for about $50.00 A vacuum0adcanced, fuel-pressure device sometimes called a "TWISTER". This device goes under the throttle body and it forces the fuel into the chambers faster than normal which increases the horse power by about 40 horse power. You can run the stock coil on the motor to keep things simple. This is an easy one belt motor and this type motor is found in any 1988 to 1994 Chevrolet product like the V8-Caprice or Monte-Carlo, V8 Chevrolet pickup, vans or SUV's. you can then use a Borla or Flowmaster exhaust system that you can find used on craig's list or eBay also many exhaust shops sell used flow-masters. We suggest you use the Tornada-Type, In-line, Front- Wheeldize transmission, and stay with the Tornada stock transaxles because they were made to drive the front wheel drive V8 car and a very strong. A FAB shop, machine shop or welding shop can help you with the motor mounts, Also by going with the "In-line" V8 motor it will help balance the weight of the car. You can use a 1981 to 1997 Camaro or Trans-Am style instrument cluster that will look good and easily hookup to the GM, V8 motor. You can choose between a fuel injector or carborator type fuel delivery system. The carborator is the simple way to go. If you want the fuel injector type then for wiring you can use an after-market fender mount computer with wiring harness to run the fuel injection system and distributor and contact summit or seco high performance parts for the computer. If you don't mind having a carborator on top of the motor then you can use only one positive wire to operate the distributor on the motor and one fuel line and not have a computer and this you can't simplify matters easier than that suggestion.
Note: you will need an adapter plate from the Chevrolet motor to the Oldsmobile transmission but if you went with any Oldsmobile, Pontiac, or Buick V8 They will bolt-up directly to the Oldsmobile Transmission. A perfect motor for this project would be a 400 cubic inch Pontiac motor out of a 1978 to 1980 Trans Am because you would have the most powerful Pontiac V8 in-line motor bolted to the transmission that allows the motor to be in the car long ways with the car.
Note: We love the “F. Body platform” donor car, it is a bargain when used as a donor car because of the high- performance powertrain and suspension you get for the price. If you compare the Corvette with the “F. Body platform” vehicle you will find that the difference in horsepower is not noticable and the only other difference is the suspension which is only a little stiffer in the vette but the vette costs over 3 to 4 times as much as the “F. Body” vehicle. Both vehicles have the same ls1 engine. Initially we tried to make the vette work as a donor car but found that the hood area was too long to work with the mercy body-kit products, so a compromise was made when the “F. Body” was tested and it actually works better because you get the same “LS1 motor” as the Vette but at only a fraction of the cost. The secrect to the “F. Body” being used as a donor car is that the motor is back under the dash for 1993 to 2003 model “F. Body” vehicles.
Buy either a good title or salvage title “f. Body” donor car today and place your mercy-4 body-kit order. Life is short… enjoy the ride!
Note: Some people like to add a 1997 to 2004 Corvette, LS1, engine, fuel-rail cover-kit which dresses the LS1 motor up and makes it look much more expensive. We bought a set of “like new” motor-covers on eBay for only $50.00. (Note: You will need to notch the corner by the throttle plate since a Corvette uses an electric throttle and the cable interferes with the cover.
Note: The video below shows a very nice running and driving custom chassis. The chassis is worth $14,000.00 the motor and trans. $6,000.00 the coolant, steering and wiring cost another $3,000.00 for a total of $23,000.00. This does not include all the time and labor it took to get the chassis in the condition it is. We show you how we created the same type drivable chassis in a 1998 Pontiac Firebird with a “LS1” V8 motor that is almost ready for a MERCY-4 body-kit to be mounted on it with cold A/C and cruise control and all the wiring in place for lights for only $1,400.00 that is right $1,400.00 and only two days built time. Remember it is a lot easier to tear something down like the Firebird with a metal-cutting saw than to build something up like the very nice custom-chassis that is very expensive in time and money and mental energy. Life is short…keep it simple and enjoy the ride.
MERCY-4 at 500 Horse Power
NOTE: Here's some more ideas from a F-Body owner that wants more horse-power.
1)Rebuilding an LS1 motor is just as good as a new motor and will be much cheaper.
2)a cam, heads and spray will put it well over 400hp for much less than $4k suggested in the video.
3)You can also buy an STS Turbo system for the LS1 F-Body's for $3k which is cheaper than the LS3 and LS9 and will out perform those without a hitch.
4) Some people use a LS7 Intake to add horse-power on an LS1.
5) You can also search LS1 tech and get all the info you need for the LS1.