ID
1395405
$ 28,949.09
1-2 weeks delivery time
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+
The Quicksilver 8M0187378 is an 8.1L 496 HO V8 high-output longblock engine for marine applications. Features standard left-hand rotation, heavy-duty iron block with splayed 4-bolt main bearing caps, forged steel crankshaft and roller camshaft. Equipped with Black-X valve technology cylinder heads and priority main oiling system. Designed as a direct replacement for MerCruiser 496 MAG HO and 8.1L HO engines (2001+). Supplied new with 3-year limited factory warranty.
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Quicksilver 8M0187378 – 8.1L 496 HO V8 Engine Block Longblock, High Output, Left Rotation, for MerCruiser 496 MAG HO / 8.1L HO (2001+)
The Quicksilver 8M0187378 longblock engine is a high-output 8.1L 496 V8 solution designed for demanding marine applications where maximum performance and reliability are required. Built with heavy-duty components, it delivers enhanced power and durability for high-load conditions.
This engine features a robust iron block with splayed 4-bolt main bearing caps, a forged steel crankshaft and a roller camshaft for improved strength and efficiency. The priority main oiling system ensures consistent lubrication, while Quicksilver iron cylinder heads with Black-X valve technology enhance performance and service life.
Key Features
- 8.1L 496 High Output V8 longblock engine
- Standard left-hand rotation
- Heavy-duty iron block with splayed 4-bolt main bearing caps
- Forged steel crankshaft and billet oil adapter
- Roller camshaft and 1.7:1 rocker arms
- Priority main oiling system
- Hypereutectic pistons (8.6:1 compression ratio)
- Iron cylinder heads with Black-X valve technology
- Hardened valve seats and marine valve springs
- 100% new engine assembly
- 3-year limited factory warranty
Compatibility
- MerCruiser 496 MAG HO engines (2001+)
- MerCruiser 8.1L HO engines (2001+)
- Can be adapted for other compatible marine applications
Technical Specifications
Brand Quicksilver Product Number 8M0187378 Engine Type V8 (High Output) Displacement 8.1L Rotation Left (Standard) Condition New
Additional Information
- Quicksilver SKU: 8M0187378
- VDM - Reya SKU: MER8M0187378
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