Enginetech BC298JSTD is a standard size main bearing set for 1962-1989 Chevy, GMC, Buick, Oldsmobile 3.2L-4.8L 194-292ci I6 engines.
Important Notes:
- Standard size - for standard (unmachined) crankshaft main journals only. Measure journal diameter before installation to confirm fit.
- Always replace main bearings as a complete set. Never mix new bearings with used bearings - uneven wear and clearance differences will cause premature failure.
| Part Number | BC298JSTD |
| Bearing Size | Standard |
| Quantity Per Set | 7 main bearings per set |
| Engine | 3.2L-4.8L 194-292ci I6 |
| Year Range | 1962-1989 |
| Makes | Buick, Chevrolet, GMC, Oldsmobile, Pontiac |
| Country of Origin | IL |
| Weight | 1.5 lbs |
| UPC | 707473000000 |
| OEM Cross-Refs | ACL:7M617P, FEL-PRO:4124MA, King Engine Bearings:MB752AM, MAHLE:MS-617P |
Complete main bearing set covering all main journals for the I6 application - one set required per engine.
Fitment:
- 1962-1967 Chevrolet Chevy II 3.2L 194ci I6
- 1963-1963 Chevrolet Bel Air 3.8L 230ci I6
- 1965-1965 Chevrolet Bel Air 3.8L 230ci I6
- 1963-1965 Chevrolet Biscayne 3.8L 230ci I6
- 1963-1965 Chevrolet C10 Panel 3.8L 230ci I6
- 1963-1965 Chevrolet C20 Pickup 3.8L 230ci I6
- 1963-1965 Chevrolet C30 Panel 3.8L 230ci I6
- 1963-1965 Chevrolet C30 Pickup 3.8L 230ci I6
- 1963-1965 Chevrolet Impala 3.8L 230ci I6
- 1963-1965 Chevrolet K20 Pickup 3.8L 230ci I6
- 1963-1965 GMC 1000 Series 4.8L 292ci I6
- 1963-1965 GMC 1500 Series 3.8L 230ci I6
- 1963-1965 GMC 1500 Series 4.8L 292ci I6
- 1963-1965 GMC 2500 Series 3.8L 230ci I6
- 1963-1965 GMC 2500 Series 4.8L 292ci I6
- 1963-1965 GMC 3000 3.8L 230ci I6
- 1963-1965 GMC 3500 3.8L 230ci I6
- 1963-1965 GMC PB2500 Series 3.8L 230ci I6
- 1963-1966 Chevrolet Suburban 3.8L 230ci I6
- 1963-1966 Chevrolet Suburban 4.8L 292ci I6
- 1963-1966 GMC 3000 4.8L 292ci I6
- 1963-1966 GMC 3500 4.8L 292ci I6
- 1963-1966 GMC G1000 Series 3.2L 194ci I6
- 1963-1966 GMC Suburban 3.8L 230ci I6
- 1963-1966 GMC Suburban 4.8L 292ci I6
- 1963-1969 Chevrolet C10 Pickup 3.8L 230ci I6
- 1963-1969 Chevrolet K10 Pickup 3.8L 230ci I6
- 1963-1971 Chevrolet C10 Pickup 4.8L 292ci I6
- 1963-1971 Chevrolet C20 Pickup 4.8L 292ci I6
- 1963-1971 Chevrolet C30 Pickup 4.8L 292ci I6
- ...and 408 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.
