Reference Details
- Common issue
- 427 badges, dual quads, a four-speed, or later drivetrain parts treated as proof by themselves
- Confidence
- documented
- Correct value
- Q or R engine code, transmission code 5, dated 427 assembly, induction, exhaust, axle, chassis, and records agree
- Where to check
- Warranty number and plate, engine and induction, four-speed, axle, suspension, brakes, order history, and restoration file