GMC 3.8L Engine

Part Type:  Remanufactured Engine Assembly (Factory Spec)

This remanufactured GMC 3.8L engine includes the following enhancements from Fraser Engines:

• Bore and hone all cylinders to OEM clearances (We check all clearances within .0001 of inch),
• Decking cylinder head(s) and block for straightness,
• Cutting valve seats and valves to 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 3.8L Engines

The GMC 3.8L engine (3800 Series II) is a V6 engine designed and produced by General Motors for various vehicles under their brands, including Buick, Chevrolet, Oldsmobile, and Pontiac.

The base engine consists of:

An all-aluminum engine block and cylinder head
Dual Overhead Camshafts (DOHC)
Variable Valve Timing (VVT)
Sequential multi-port fuel injection

The engine specifications include:

• A displacement of 231 cubic inches (3,791 cubic centimeters)
• 3.8 in x 3.4 in (96.5 mm x 86.4 mm) cylinder bore and piston stroke
• 9.4:1 or 10.0:1 compression ratio
• 200 to 240 horsepower (149 to 179 kW) at 5,200 to 6,000 rpm
• 225 to 280 lb-ft (305 to 380 Nm) of torque at 2,000 to 5,200 rpm

The GMC 3.8L engine made its debut in 1997 and was utilized in various GM cars until 2009, including the Buick Regal, Chevrolet Impala and Monte Carlo, Oldsmobile Intrigue, and Pontiac Grand Prix. It is praised for its smoothness, reliability, and fuel efficiency, making it a popular choice for both family cars and sports models. The engine's design has been improved over the years, with the latest version being the 3800 Series III, which includes features like electronic throttle control and electronic throttle body.