Reference Details
- Common issue
- A regular P-series engine fitted with a Paxton supercharger or R-series badges represented as factory R2
- Confidence
- documented
- Correct value
- P-series standard 289, JT-prefix R1, or JTS-prefix R2 with configuration-correct induction, supercharger, cooling, exhaust, and dates
- Where to check
- Engine stamp, castings, carburetor tag, intake, supercharger and drive, cooling, exhaust, dates, and production order