Enginetech M96136-.75 is a premium .75mm oversize piston ring set for 1988-1993 Buick, Oldsmobile, Pontiac 3.8L 231ci V6 engines, sold as a complete set covering all cylinders.
Important Notes:
- Sized for cylinders bored .75mm 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.
- Premium. Ductile top. 1.5 / 1.5 / 3.0mm.
| Part Number | M96136-.75 |
| Grade | Premium |
| Bore Size | .75mm Oversize |
| Ring Stack (Top/2nd/Oil) | 1.50 / 1.50 / 3.00 |
| Standard Bore Diameter | 3.800 in |
| Quantity | Complete set - covers all 6 cylinders |
| Engine | 3.8L 231ci V6 |
| Year Range | 1988-1993 |
| Makes | Buick, Oldsmobile, Pontiac |
| Country of Origin | US |
Sold as a complete piston ring set - one set covers all cylinders and is required per engine.
Fitment:
- 1988-1990 Buick Electra 3.8L 231ci V6
- 1988-1990 Oldsmobile 98 3.8L 231ci V6
- 1988-1990 Oldsmobile Delta 88 3.8L 231ci V6
- 1988-1990 Oldsmobile Toronado 3.8L 231ci V6
- 1988-1991 Buick LeSabre 3.8L 231ci V6
- 1989-1990 Buick Reatta 3.8L 231ci V6
- 1989-1990 Buick Riviera 3.8L 231ci V6
- 1989-1991 Pontiac Bonneville 3.8L 231ci V6
- 1990-1992 Buick Regal 3.8L 231ci V6
- 1991-1991 Buick Reatta 3.8L 231ci V6
- 1991-1992 Buick Park Avenue 3.8L 231ci V6
- 1991-1992 Buick Riviera 3.8L 231ci V6
- 1991-1992 Oldsmobile 98 3.8L 231ci V6
- 1991-1992 Oldsmobile Toronado 3.8L 231ci V6
- 1991-1993 Buick Park Avenue 3.8L 231ci V6
- 1992-1992 Buick LeSabre 3.8L 231ci V6
- 1992-1992 Oldsmobile 88 3.8L 231ci V6
- 1992-1992 Oldsmobile Silhouette 3.8L 231ci V6
- 1992-1992 Pontiac Bonneville 3.8L 231ci V6
- 1992-1992 Pontiac Trans Sport 3.8L 231ci V6
- 1992-1993 Oldsmobile 98 3.8L 231ci V6
- 1992-1993 Pontiac Bonneville 3.8L 231ci V6
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.
