Engine Piston Ring Set - .020 Oversize for 1959-1990 Chevrolet/GMC/Dodge 7.4L 7.0L (P30, C20 Suburban, C20, C30) 683020
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The Hastings Engine Piston Ring Set - .020 Oversize (part number 2M683020) is a direct-fit replacement for 1959-1990 Chevrolet, GMC, Dodge, and Plymouth vehicles with 7.4L, 7.0L, and 6.3L engines.
Specifications:
| 1st Oil Groove | 3/16 |
| 1st Oil Ring Material | STEEL RAIL/STAINLESS EXP |
| 1st Oil Ring Surface Treatment | CHROME |
| 2nd Groove | 5/64 |
| 2nd Ring Surface Treatment | PHOSPHATE |
| Bore Size (in) | 4.25 |
| Notes | W/Deep Oil Grv. |
| Oversize (mm) | 0.5 |
| Top Groove | 5/64 |
| Top Ring Surface Treatment | PLASMA MOLY |
Fits: 1959-1990 Chevrolet, GMC, Dodge, Plymouth, and Fargo models including P30, C20 Suburban, C20, C30, Caprice, Impala, Bel Air, Corvette and more - 7.4L, 7.0L, and 6.3L engines. Confirm your year, make, model, and engine before ordering.
Interchanges With: Sealed Power 3060KX, Sealed Power E233K, Sealed Power H693CP, Sealed Power L2453F, Sealed Power R-9590, Mahle 40203CP