Apex AHB378 Engine Cylinder Head Bolt Set

Apex AHB378 Cylinder Head Bolt Set

The Apex AHB378 engine cylinder head bolt set is built for GM truck, van, and SUV applications that require a direct-fit cylinder head fastener solution. It is a practical choice for service work on Chevrolet C2500, K2500, C3500, and GMC C3500, K3500 platforms across a wide range of model years.

Key Features

• Engine cylinder head bolt set for GM V8 and related engine service applications
• Fits a broad range of Chevrolet and GMC trucks, vans, and Suburban models
• Supports cylinder head reassembly during engine repair and rebuild work
• Part number AHB378 for cataloging and application lookup
• Compatible with many 1980-2000 Chevrolet and GMC applications listed below

Application Coverage

• Fits 1991-2000 Chevrolet C2500, N/A
• Fits 1988-2000 Chevrolet C3500, N/A
• Fits 1996-2000 Chevrolet Express 3500, N/A
• Fits 1991-2000 Chevrolet K2500, N/A
• Fits 1988-2000 Chevrolet K3500, N/A
• Fits 1991-2000 GMC C2500, N/A
• Fits 1980-1986 GMC C2500, N/A
• Fits 1988-2000 GMC C3500, N/A
• Fits 1980-1986 GMC C3500, N/A
• Fits 1991-2000 GMC K2500, N/A
• Fits 1988-2000 GMC K3500, N/A
• Fits 1980-1986 GMC K3500, N/A
• Fits 1996-2000 GMC Savana 3500, N/A
• Fits 1992-1999 Chevrolet C2500 Suburban, N/A
• Fits 1992-1999 Chevrolet K2500 Suburban, N/A
• Fits 1980-1999 Chevrolet P30, N/A
• Fits 1992-1999 GMC C2500 Suburban, N/A
• Fits 1980-1986 GMC C2500 Suburban, N/A
• Fits 1992-1999 GMC K2500 Suburban, N/A
• Fits 1980-1999 GMC P3500, N/A
• Fits 1988-1996 Chevrolet G30, N/A
• Fits 1988-1996 GMC G3500, N/A
• Fits 1990-1993 Chevrolet C1500, N/A
• Fits 1989-1991 Chevrolet R2500 Suburban, N/A
• Fits 1989-1991 Chevrolet R3500, N/A
• Fits 1989-1991 Chevrolet V3500, N/A
• Fits 1987-1991 GMC R2500 Suburban, N/A
• Fits 1987-1991 GMC R3500, N/A
• Fits 1987-1991 GMC V3500, N/A
• Fits 1990 Chevrolet V2500 Suburban, N/A
• Fits 1989 Chevrolet R2500, N/A
• Fits 1987-1989 GMC R2500, N/A
• Fits 1987-1988 Chevrolet R20, N/A
• Fits 1987-1988 Chevrolet R20 Suburban, N/A
• Fits 1987-1988 Chevrolet R30, N/A
• Fits 1987-1988 Chevrolet V20 Suburban, N/A
• Fits 1987-1988 Chevrolet V30, N/A
• Fits 1980-1986 Chevrolet C20, N/A
• Fits 1980-1986 Chevrolet C20 Suburban, N/A
• Fits 1980-1986 Chevrolet C30, N/A
• Fits 1980-1986 Chevrolet K30, N/A
• Fits 1985 Chevrolet K20 Suburban, N/A
• Fits 1980 Chevrolet C10, N/A
• Fits 1980 Chevrolet C10 Suburban, N/A
• Fits 1980 Chevrolet K10, N/A
• Fits 1980 GMC C1500, N/A
• Fits 1980 GMC C1500 Suburban, N/A
• Fits 1980 GMC K1500, N/A

What This Part Is Used For

• Replacing stretched or damaged cylinder head bolts during engine teardown
• Restoring proper cylinder head clamping during head gasket service
• Addressing coolant loss or compression issues tied to head fastener failure
• Supporting rebuilds on Chevrolet and GMC truck engines
• Servicing high-mileage GM C/K, R/V, Suburban, P30, and G-series platforms

Installation Notes and Tips

Verify engine code, cylinder head design, and application details before installation. Clean threaded holes, inspect the head and block surfaces, and follow the factory tightening sequence and torque procedure for the specific engine. For best results, replace head bolts any time the cylinder heads are removed and the service procedure calls for new fasteners.

This part cross-references common cylinder head bolt applications used in GM engine service, including select OE-style replacement references for the same application.

Quality Assurance

Apex part AHB378 is cataloged for direct application lookup across the listed Chevrolet and GMC platforms. Use the vehicle fitment above to confirm coverage for your specific truck, van, or Suburban before ordering.