techinical specs

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 number.

4.6L V8 32-VAlve

Engine is swapped from a 1996 Cadillac Seville STS. L37 engine code. All aluminum.

4t80E 4-speed auto

Transmission is also from the Cadillac donor car. 3.71:1 final drive ratio. Strongest transverse automatic that GM ever produced.

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.

instrumentation

Converter installed to reuse all old instrumentation. Cadillac PCM communicates to the dash for proper speed and RPM readouts. All gauges work.

lighting

All exterior lighting has been kept period correct, but interior lighting upgraded to LED to increase gauge visiblity.

0-60 performance

Fastest recorded 0-60 time on 91 octane pump gas is 5.1 seconds.

original interior

The interior is original with a few period correct additions including leather covered seats, steering wheel and shifter.