Cars
1972 Pontiac Firebird Formula 400
Specifications
Year
1972
Make
Pontiac
Model
Firebird
Trim
Formula 400 (U-Code)
Engine
400 cu in (6.6L) 4-bbl V8 — NOM
Transmission
Automatic
Color
Revere Silver Metallic
Interior Color
Grey cloth w/ black vinyl
Options
Vintage Air A/C · power steering · front power disc brakes · black vinyl Landau top · bucket seats & console · 15" mag wheels · 10-bolt 3.08 rear
About
Details coming soon.
Engine Build
| NOM Pontiac 400 block 481988 casting | Believed to be a 1973 Pontiac 400 block (casting 481988, used 1973–74) — a durable mid-’70s Pontiac V8 foundation widely used in street-performance and restoration builds. |
| Cylinder heads Pontiac 6X-8 | Late-’70s Pontiac 6X-8 heads with large combustion chambers and ~7.8:1–8.2:1 compression on a 400 — tuned for reliable pump-gas street performance and strong low-end torque. |
| Intake manifold Edelbrock dual-plane | Edelbrock aluminum dual-plane manifold with spread-bore Quadrajet flange — improves low/mid-range torque and throttle response while keeping Quadrajet compatibility without an adapter plate. |
| Carburetor Quadrajet 17056264 | Carter/GM Quadrajet 17056264 spread-bore 4-barrel from a 1976 Pontiac application, installed on the Edelbrock intake. |
| Ignition HEI conversion | Aftermarket GM HEI-style electronic distributor (coil-in-cap) with upgraded wires, replacing the factory points ignition for stronger spark, reliability, and reduced maintenance. |
| Alternator Powermaster 57293 | Powermaster 57293 high-output alternator for increased charging capacity and improved low-RPM electrical performance. |
| Estimated output gross | ~250–310 hp · ~390–450 lb-ft. |