Engine Piston Ring Set - .030 Oversize for 1954-1977 Chevrolet/GMC/Pontiac 4.6L 5.0L (Impala, C10 Pickup, C20 Pickup, C30 Pickup) E-245K 30
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The Hastings Engine Piston Ring Set - .030 Oversize (part number 2M660030) is a direct-fit replacement for 1954-1977 Chevrolet, Pontiac, GMC, and Oldsmobile vehicles with 4.6L, 5.0L, and 5.3L 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) | 3.875 |
| Oversize (mm) | 0.75 |
| Top Groove | 5/64 |
| Top Ring Surface Treatment | PLASMA MOLY |
Fits: 1954-1977 Chevrolet, Pontiac, GMC, Oldsmobile, and Studebaker models including Impala, C10 Pickup, C20 Pickup, C30 Pickup, K10 Pickup, K20 Pickup, Bel Air, El Camino and more - 4.6L, 5.0L, and 5.3L engines. Confirm your year, make, model, and engine before ordering.
Fitment Notes: Top Ring Surface Treatment: Plasma Moly; Weights: 1.144lb
Interchanges With: Sealed Power E245K, Mahle 40620