ID
1395404
$ 32,165.99
1-2 weeks delivery time
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+
The Quicksilver 8M0187377 is an 8.1L 496 V8 longblock engine delivering 370–375 HP 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 and 8.1L Horizon engines (2001+). Supplied new with 3-year limited factory warranty.
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Quicksilver 8M0187377 – 8.1L 496 V8 Engine Block Longblock, 370–375 HP, Left Rotation, for MerCruiser 496 MAG / 8.1L Horizon (2001+)
The Quicksilver 8M0187377 longblock engine is a high-performance 8.1L 496 V8 solution designed for demanding marine applications. Built with heavy-duty components and advanced engineering, it delivers reliable power output in the 370–375 HP range.
This engine features a robust iron block with splayed 4-bolt main bearing caps, a forged steel crankshaft and a roller camshaft for enhanced durability and performance. The priority main oiling system ensures consistent lubrication, while the Quicksilver iron cylinder heads with Black-X valve technology provide improved efficiency and longevity.
Key Features
- 8.1L 496 V8 longblock engine
- 370–375 HP output
- 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 engines (2001+)
- MerCruiser 8.1L Horizon engines (2001+)
- Can be adapted for other compatible marine applications
Technical Specifications
Brand Quicksilver Product Number 8M0187377 Engine Type V8 Displacement 8.1L Power Output 370–375 HP Rotation Left (Standard) Condition New
Additional Information
- Quicksilver SKU: 8M0187377
- VDM - Reya SKU: MER8M0187377
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