Enginetech R38056-060 is a cast .060" oversize piston ring set for 1977-1988 Chevy, GMC, Buick, Oldsmobile 3.0L/3.8L 181-231ci V6 engines, sold as a complete set covering all cylinders.
Important Notes:
- Sized for cylinders bored .060 inch oversize. Verify your finished bore diameter with a precision gauge before ordering - rings sized for the wrong bore will not seal correctly.
- File-fit and gap each ring to the manufacturer's end-gap specification for your application before installation. Improper end gap causes blow-by or ring-end butting under heat.
- Replace piston rings as a complete set during any rebuild. One set covers all cylinders for the engine.
- Cast. 5/64 5/64 3/16.
| Part Number | R38056-060 |
| Grade | Cast |
| Bore Size | .060" Oversize |
| Ring Stack (Top/2nd/Oil) | 5/64 / 5/64 / 3/16 |
| Standard Bore Diameter | 3.800 in |
| Quantity | Complete set - covers all 6 cylinders |
| Engine | 3.0L/3.8L 181-231ci V6 |
| Year Range | 1977-1988 |
| Makes | Buick, Chevrolet, GMC, Oldsmobile, Pontiac |
| Country of Origin | US |
| OEM Cross-Refs | Hastings:5474, FEL-PRO:E-369X, Perfect Circle:51106 |
Sold as a complete piston ring set - one set covers all cylinders and is required per engine.
Fitment:
- 1977-1980 Oldsmobile Starfire 3.8L 231ci V6
- 1977-1980 Pontiac Sunbird 3.8L 231ci V6
- 1977-1981 Pontiac Catalina 3.8L 231ci V6
- 1977-1985 Buick LeSabre 3.8L 231ci V6
- 1977-1985 Oldsmobile Delta 88 3.8L 231ci V6
- 1978-1979 Buick Skylark 3.8L 231ci V6
- 1978-1979 Oldsmobile Omega 3.8L 231ci V6
- 1978-1979 Pontiac Phoenix 3.8L 231ci V6
- 1978-1980 Buick Skyhawk 3.8L 231ci V6
- 1978-1980 Chevrolet Monza 3.8L 231ci V6
- 1978-1980 Oldsmobile Cutlass Salon 3.8L 231ci V6
- 1985-1986 Oldsmobile Cutlass Salon 3.8L 231ci V6
- 1978-1981 Buick Century 3.8L 231ci V6
- 1978-1981 Oldsmobile Cutlass 3.8L 231ci V6
- 1978-1981 Pontiac Firebird 3.8L 231ci V6
- 1978-1981 Pontiac Grand LeMans 3.8L 231ci V6
- 1978-1981 Pontiac LeMans 3.8L 231ci V6
- 1978-1983 Chevrolet Malibu 3.8L 231ci V6
- 1978-1984 Chevrolet El Camino 3.8L 231ci V6
- 1978-1984 Chevrolet Monte Carlo 3.8L 231ci V6
- 1978-1984 GMC Caballero 3.8L 231ci V6
- 1978-1984 Oldsmobile Cutlass Calais 3.8L 231ci V6
- 1978-1987 Buick Regal 3.8L 231ci V6
- 1978-1987 Oldsmobile Cutlass Supreme 3.8L 231ci V6
- 1978-1987 Pontiac Grand Prix 3.8L 231ci V6
- 1979-1979 Pontiac Grand Am 3.8L 231ci V6
- 1980-1981 Chevrolet Camaro 3.8L 231ci V6
- 1980-1982 Oldsmobile Cutlass Cruiser 3.8L 231ci V6
- 1980-1984 Chevrolet Caprice 3.8L 231ci V6
- 1980-1984 Chevrolet Impala 3.8L 231ci V6
- ...and 37 additional applications
Enginetech piston ring sets are manufactured to OEM specifications and offered in both premium and cast grades to match the demands of stock rebuilds and moderate-performance builds. Each set is application-specific, with ring widths and end-gap characteristics matched to the bore and groove geometry of the engine family it serves. Ring sets are sold by bore size - standard for unmachined bores, with oversizes for blocks that have been bored and honed - so verify your finished bore diameter with a precision gauge before ordering, since rings sized for the wrong bore will not seal correctly. Always file-fit and gap each ring to the manufacturer's specification for your application, and replace rings as a complete set during any rebuild. Enginetech documents every set with the ring stack dimensions, bore size, and cross-references so the correct set reaches 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.
