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(888) 312-8812 Login SignupSEALED POWER H521ACP 40 "Speed Pro" Engine Piston Cast Set
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SEALED POWER H521ACP 40 Part Description
Manufacturer
Product Description
Engine Piston Set
Application Summary
Performance Engine Performance Performance (Aspiration: Naturally Aspirated & Cylinder Head: OHV & Liter: 3.8 & Engine(ci): 231 & Cylinder: 6 & Block: V & Bore(in): 3.800 & Stroke(in): 3.400 & Valves: 12 & Fuel: GAS); 1979-1980 Buick Century (Aspiration: Turbocharged & Engine Designation: LC8 & Cylinder Head: OHV & Liter: 3.8 & Engine(cc): 3800 & Engine(ci): 231 & Cylinder: 6 & Block: V & Bore(in): 3.80 & Bore(mm): 96.5 & Stroke(in): 3.40 & Stroke(mm): 86.4 & Engine VIN: 3 & Valves: 12 & Ignition: Distributor-Breakerless & Fuel: GAS & Engine Version: Buick); 1978-1980 Buick LeSabre (Aspiration: Turbocharged & Engine Designation: LC8 & Cylinder Head: OHV & Liter: 3.8 & Engine(cc): 3800 & Engine(ci): 231 & Cylinder: 6 & Block: V & Bore(in): 3.80 & Bore(mm): 96.5 & Stroke(in): 3.40 & Stroke(mm): 86.4 & Engine VIN: 3 & Valves: 12 & Ignition: Distributor-Breakerless & Fuel: GAS & Engine Version: Buick); 1978-1987 Buick Regal (Aspiration: Turbocharged & Engine Designation: LC5, LC8, LM9, LC2 & Cylinder Head: OHV & Liter: 3.8 & Engine(cc): 3800 & Engine(ci): 231 & Cylinder: 6 & Block: V & Bore(in): 3.80 & Bore(mm): 96.5 & Stroke(in): 3.40 & Stroke(mm): 86.4 & Engine VIN: G, 3, 8, 9, 7 & Valves: 12 & Ignition: Distributor-Breakerless, Distributorless & Fuel: GAS & Engine Version: Buick); 1979-1985 Buick Riviera (Aspiration: Turbocharged & Cylinder Head: OHV & Liter: 3.8 & Engine(cc): 3800 & Engine(ci): 231 & Cylinder: 6 & Block: V & Bore(in): 3.80 & Bore(mm): 96.5 & Stroke(in): 3.40 & Stroke(mm): 86.4 & Valves: 12 & Ignition: Distributor-Breakerless & Fuel: GAS & Engine Version: Buick); 1980-1981 Chevrolet Monte Carlo (Aspiration: Turbocharged & Engine Designation: LC8 & Cylinder Head: OHV & Liter: 3.8 & Engine(cc): 3800 & Engine(ci): 231 & Cylinder: 6 & Block: V & Bore(in): 3.80 & Bore(mm): 96.5 & Stroke(in): 3.40 & Stroke(mm): 86.4 & Engine VIN: 3 & Valves: 12 & Ignition: Distributor-Breakerless & Fuel: GAS & Engine Version: Buick)
Features & Benefits
- Exclusive higher-strength FM-425 alloy with 16.5 percent silicon finely dispersed throughout the material
- Sophisticated "barrel" profiles help optimize oil wedge between skirt and wall.
- Piston skirts protected by next-gen DUROSHIELD(R) coating.
- TACTM ring groove geometry
- Weight matched to +/- 2 grams.
- Machined valve reliefs and circlip grooves; LR-63 lock rings for floated applications
SEALED POWER H521ACP 40 Specifications
Product Attributes
| Oversized | Yes |
| Top Compression Ring Thickness | 0.0781 IN |
| Second Compression Ring Thickness | 0.0781 IN |
| Oil Ring Thickness | 0.1875 IN |
| Assembly Lubricant Included | No |
| Bore Diameter | 3.840 IN |
| Piston Material | Hypereutectic |
| Compression Height | 1.800 IN |
| Dome Volume CC | -24.0 |
| Head Illustration | 28 |
| Head Type | .255 dish; DUROSHIELD skirt coated piston |
| Lock Ring | N/R |
| Minimum Clearance | .0015 |
| Oversize Inch | .040 |
| Part Description | Engine Piston |
| Pin Diameter (Inch) | 0.939 |
| Pin Type | P |
| Pin Weight Gram | 156 |
| Weight W Pin Gram | 682 |
| Weight w/o Pin Gram | 526 |
Additional Information
| Country of Origin (Primary) | IN |
| Canadian Harmonizing Tariff Code | 8409910010 |
| Harmonized Tariff Code (HTS) | 8409915085 |
| UPC | 00614046686274 |
SEALED POWER H521ACP 40 Part Interchanges
| Brand | Part Number |
|---|---|
| Badger | P440H-040, P440H040 |
| Clevite | 9-1735.040, TC2944.040, 91735040, TC2944040 |
| Dana Commercial Vehicle Service Parts | TC2944.040, TC2944040 |
| Silvolite | 1735040 |
SEALED POWER H521ACP 40 Fits Vehicles
- Chevrolet Monte Carlo (1980-1981)
- Buick Riviera (1979-1985)
- Buick LeSabre (1978-1980)
- Buick Regal (1978-1987)
- Buick Century (1979-1980)
SEALED POWER H521ACP 40 Manufacturer Information
Speed-Pro® is the go-to brand not only for racers and performance enthusiasts but also for those who are cruising down the road day in day out. With its engineering expertise, advanced technologies, and industry-leading manufacturing facilities and techniques, Speed-Pro sets the bar higher for other manufacturers of pistons, engine bearing parts, and performance engine components. The engine solutions from Speed-Pro are meticulously designed and crafted to boost horsepower production and make engine rebuild an easy feat. Since its establishment, this brand has continuously improved and refined its operations and quality control measures to maintain high quality standards and satisfy customers’ requirements and demands.
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