| Make | Model | Year |
|---|---|---|
| Buick | Apollo | 1973-1975 |
| Century | 1973-1977 | |
| Electra | 1977-1980 | |
| Estate | 1977-1980 | |
| Le Sabre | 1972-1974, 1977-1980 | |
| Regal | 1973-1977 | |
| Riviera | 1977-1980 | |
| Skylark | 1972, 1975-1977 | |
| Cadillac | Seville | 1976-1979 |
| Oldsmobile | Calais | 1979-1980 |
| Custom Cruiser | 1977-1980 | |
| Cutlass | 1968-1977, 1979-1980 | |
| Eighty-Eight | 1968-1980 | |
| F85 | 1968-1972 | |
| Ninety-Eight | 1977-1980 | |
| Omega | 1973-1977 | |
| Vista Cruiser | 1968-1975 |
Cast Engine Piston Ring Set (R40658-040) by Enginetech®. Superior size and weight grading within each set. Most Enginetech pistons are decked 0.010" to 0.020" to compensate for oversized bores and head/deck milling. Enginetech pistons are manufactured with state of the art materials to match OE requirements. Offers cast aluminum, hypereutectic, and forged applications. Treatments such as skirt coatings, anodized heads & Ni-resist inserts are used as required. Superior quality. Enginetech specializes in providing high performance engine pistons for engine rebuilds for domestic, import, and high performance application. Pistons are manufactured with state of the art materials to match OE requirements. Enginetech offer cast aluminum, hypereutectic, and forged applications. Treatments such as skirt coatings, anodized heads & Ni-resist inserts are used as required. Most Enginetech pistons are decked 0.010” to 0.020” to compensate for oversized bores and head/deck milling.
| Ring Bore Size (in): 4.057" |
| Ring Bore Size (mm): 103.05 mm |
| # of Cylinders: 8 |
| Oversize: 0.400" |
| Top Ring Width: 0.0781" |
| Second Ring Width: 0.0781" |
| Oil Ring Width: 0.1875" |
| Top Ring Size: 5/64" |
| 2nd Compression Ring Size: 5/64" |
| Oil Ring Size: 3/16" |
Family owned Enginetech® has been delivering the goods to professional engine rebuilders since 1982. Offer a complete line of products for virtually all of the engines you see coming into your shop today, including a full range of products for Japanese engines. Whether you buy complete engine kits or open stock by product line, products will suit your needs. Enginetech passionate about engine rebuilders and serving their needs.