Technical specifications of the Fiero 2M8 after the conversion from a Fiero 2M4.
1988 pontiac fiero 2M8 - 4.6L v8
300 HP / 295 tq
300 HP @ 6000 RPM, 295 FT/LB Torque at 4400 RPM stock. The custom Magnaflow exhaust may slightly increase this.
4.6L V8 32-VAlve
Engine is swapped from a 1996 Cadillac Seville STS.
4t80E 4-speed auto
Transmission is also from the Cadillac donor car. 3.71:1 final drive ratio. Strongest transverse automatic produced by GM.
drivetrain
CV Joints, axles, hubs and rims from the donor car. Front hubs drilled to 115mm to match the rear.
brakes
Brakes are upgraded from the original 10.5 inch rotors to 12 inch rotors. Compatible with 84-88 C4 Corvette rotors.
cooling
Upgraded 3 core aluminum radiator and engine oil cooler. Custom aluminum expansion tank in engine compartment.
electronics
PCM, PMZ, IC, ALB, RSSM modules with data link, fuel pump, cruise control, fuse block and sensors from donor car
refurbishing
All engine gaskets and seals replaced. Head bolts with inserts from Time-Sert installed. New water pump and thermostat. New valve stem seals.
BULLETPROOF
New engine installed in 2022 has time sert head repair preemptively done to make sure the engine is bulletproof. Time serts are a GM approved and proven solution to head bolt issues.
lighting
Interior lighting upgraded to LED to increase gauge visibility.
0-60 performance
Fastest 0-60 time on 91 octane pump gas is around 5 seconds.
interior
The interior is original with a few additions including leather covered seats and leather steering wheel. And yes, the horn works.
