GMC 6.2L Engine

Part Type:  Remanufactured Engine Assembly (Factory Spec)

This remanufactured GMC 6.2L (L86) engine includes the following enhancements from Fraser Engines:

• Bore and hone all cylinders to OEM clearances (We check all clearances within .0001 of an inch),
• Decking cylinder head(s) and block for straightness,
• Cutting valve seats and valves to the proper degree,
• Line boring/honing crankshaft/camshaft tunnels,
• Ground & polish crankshaft, new or remanufactured camshaft(s),
• New main bearings, rod bearings, pistons, piston rings, lifters, pushrods (if equipped), timing components, oil pump, head bolts,
• All new internal gaskets and seals.
• All finishing gaskets are included (MAY VARY PER APPLICATION).

GMC 6.2L (L86) Engines

The GM 6.2L (L86) is a V8 engine designed by General Motors for use in their vehicles.

The base engine consists of:

An all-aluminium engine block and cylinder head
Dual Overhead Camshafts (DOHC)
Variable Valve Timing (VVT)
Direct Injection (DI)

The engine specifications include:

• A displacement of 376 cubic inches (6,162 cubic centimeters)
• 4.06 in x 3.62 in (103.25 mm x 92 mm) cylinder bore and piston stroke
• 11.5:1 compression ratio
• 420 to 455 horsepower (313 to 339 kW) at 5,600 to 6,000 rpm
• 460 to 460 lb-ft (624 to 624 Nm) of torque at 4,100 to 4,600 rpm

GM introduced the L86 engine in 2014, designed to replace the previous generation 6.2L engine. The new engine featured an advanced Direct Injection system, which improved fuel efficiency and performance. It was first used in GM's full-size pickup trucks and SUVs, which saw significant improvements in towing capacity and acceleration. The L86 received praise from reviewers for its smooth power delivery and impressive torque output.

The GM 6.2L is used in various GM vehicles, including the Chevrolet Silverado, Suburban, Tahoe, and Corvette, as well as the GMC Sierra, Yukon, and Cadillac Escalade. The engine is a popular choice among performance enthusiasts and truck enthusiasts alike for its power and durability.