Enginetech BC309J.020 is a 0.020 undersize main bearing set for 1960-1983 Ford, Mercury 2.4L-3.3L 144-200ci I6 engines.
Important Notes:
- Sized for crankshaft main journals machined .020 inch undersize. Measure journal diameter before installation - installing on the wrong journal size will cause immediate clearance failure.
- Always replace main bearings as a complete set. Never mix new bearings with used bearings - uneven wear and clearance differences will cause premature failure.
- Engines w/7 mains.
- Engines with7 mains.
| Part Number | BC309J.020 |
| Bearing Size | 0.020 Undersize |
| Quantity Per Set | 7 main bearings per set |
| Engine | 2.4L-3.3L 144-200ci I6 |
| Year Range | 1960-1983 |
| Makes | Ford, Mercury |
| Country of Origin | IL |
| Weight | 1.5 lbs |
| UPC | 707473000000 |
| OEM Cross-Refs | ACL:7M1389P, FEL-PRO:5071M, King Engine Bearings:MB785AM, MAHLE:MS-1389AL |
Complete main bearing set covering all main journals for the I6 application - one set required per engine.
Fitment:
- 1960-1961 Ford Country Sedan 2.4L 144ci I6
- 1960-1961 Ford Country Squire 2.4L 144ci I6
- 1960-1961 Ford Ranch Wagon 2.4L 144ci I6
- 1964-1964 Ford Ranch Wagon 2.4L 144ci I6
- 1960-1962 Ford Falcon 2.4L 144ci I6
- 1960-1962 Mercury Comet 2.4L 144ci I6
- 1960-1963 Mercury Comet 2.4L 144ci I6
- 1960-1964 Ford Falcon 2.4L 144ci I6
- 1960-1964 Ford P-100 2.4L 144ci I6
- 1960-1964 Ford Ranchero 2.4L 144ci I6
- 1961-1961 Ford Country Sedan 2.8L 170ci I6
- 1965-1969 Ford Country Sedan 2.8L 170ci I6
- 1961-1961 Ford Country Squire 2.8L 170ci I6
- 1965-1969 Ford Country Squire 2.8L 170ci I6
- 1961-1962 Ford Falcon Sedan Delivery 2.4L 144ci I6
- 1961-1963 Mercury Comet 2.4L 144ci I6
- 1961-1963 Mercury Meteor 2.8L 170ci I6
- 1961-1964 Ford Falcon Sedan Delivery 2.4L 144ci I6
- 1961-1965 Ford Falcon Sedan Delivery 2.8L 170ci I6
- 1961-1965 Ford P-100 2.8L 170ci I6
- 1961-1965 Ford Ranchero 2.8L 170ci I6
- 1961-1967 Ford P-350 2.8L 170ci I6
- 1970-1970 Ford P-350 2.8L 170ci I6
- 1961-1969 Ford Falcon 2.8L 170ci I6
- 1961-1969 Ford Ranch Wagon 2.8L 170ci I6
- 1961-1969 Mercury Comet 2.8L 170ci I6
- 1971-1972 Mercury Comet 2.8L 170ci I6
- 1962-1962 Mercury Villager 2.4L 144ci I6
- 1962-1963 Mercury Villager 2.4L 144ci I6
- 1962-1966 Ford Fairlane 2.8L 170ci I6
- ...and 50 additional applications
Enginetech main bearings are engineered to OEM specifications, drawing on over 40 years of engine rebuilding expertise to deliver the precise clearance, crush, and eccentricity required for long-term durability under both stock and moderate-performance loads. Each set is application-specific: materials, wall thickness, oil clearance, and surface finish are all matched to the crankshaft main journal geometry and operating loads of the engine family it serves. Main bearings are a wear component and must be selected to match the crankshaft main journal size - bearings sized for standard journals will not seat correctly on undersize-machined journals and vice versa, so verify your journal measurement with a precision micrometer before ordering or installing. Always replace main bearings as a complete set. Mixing new bearings with used bearings produces uneven oil clearance across the crankshaft and accelerates wear on the freshly installed bearings - the small cost of a complete set is insurance against premature failure on the bearings you just paid to install. Enginetech documents every set with clear application-specific notes, journal-size designation, and cross-references so the right part lands on the bench the first time.
WARNING: This product can expose you to chemicals including lead and nickel, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
