Porsche 911 Type 930/21 3.2L Flat-Six Engine — 1985 Carrera (M491) Long-Block Candidate

Original Porsche Type 930/21 3.2-liter flat-six removed from a 1985 Porsche 911 Carrera (M491 coupe). The engine was pulled when the donor car showed ≈50,000 miles on the odometer. The engine case stamping 64F04724 matches 1985 Carrera production for the Type 930/21 engine. The engine is being offered by a Local Partner after the BaT buyer elected not to keep the unit (auction concluded October 2025).

Key Details

• Engine type: Porsche Type 930/21 flat-six (3.2 L)

• Donor car: 1985 Porsche 911 Carrera M491 coupe (engine removed)

• Case stamping: 64F04724 (consistent with 1985 Carrera)

• Mileage at removal: ~50,000 miles (per seller)

• Market fitment: Porsche 911 Carrera models 1984–1986 (Type 930/21) — verify exact chassis compatibility for swaps/restorations

Condition & Notes

• Reported condition: Removed from donor car; no further test/run details provided in description. Seller (Local Partner) is assisting sale after auction.

• Recommendation: Buyers should request current photos, turnkey/run-test video, and a compression/leak-down report if you require running condition assurance. Inspect case for cracks, oil leaks, and evidence of repairs. Ask the seller which ancillaries (ECU, injectors, exhaust/intake manifolds, starter, alternator, wiring harness, flywheel) are included.

• Shipping & handling: Engine should be crated/palletized and shipped via a carrier experienced with engine freight. Confirm lift points and packing method with seller.

Fitment & Use Cases

• Original fitment: Porsche 911 Carrera (Type 930/21) 1984–1986 — US/Japan/Canada market examples.

• Common uses: Period-correct replacement, restoration long-block, rebuild to spec, performance rebuild with period components, classic 911 engine swap projects.

• Compatibility check: Always verify part numbers and case stamping against your vehicle VIN or engine logs before purchase.