Parts & Accessories Spare parts 1. H840CP (Standard + 0.75mm + 1.00mm Oversize) - 6 pistons per box • Fits: GM 3.8L V6 Engines (3800 Series) • Common Vehicles: Buick (LeSabre, Park Avenue, Regal), Pontiac (Grand Prix, Firebird), Oldsmobile (Intrigue, LSS, Regency), Chevrolet (some models) • Years: Approx. 1995 - 2005 2. H811CP .020 (Oversize 0.020) - 8 pistons per box • Fits: Chevrolet / GMC 6.0L (366 CID) Big Block / Truck Engines • Common Vehicles: Chevrolet & GMC Trucks, Vans, Medium Duty applications • Years: 1970s - 1990s (mainly heavy duty / commercial) 3. 454NP .030 (Oversize 0.030) - 8 pistons per box • Fits: Chevrolet / GM Small Block 305 (5.0L) V8 Engines • Common Vehicles: Chevrolet (Camaro, Caprice, Impala, C10/C1500 Trucks, El Camino, Monte Carlo), GMC Trucks, Pontiac, Oldsmobile • Years: Mainly 1976 - 1987 / 1988 Condition: • 100% Brand New • Original Sealed Power factory boxes • Hypereutectic pistons with Duroshield coating