Performance Head Gasket Kit for GMC Savana (2004-2008) 4.8L 5.3L

Multi-Layer Steel Engine Overhaul Head Gasket Set for 2004-2008 GMC Savana (GMT610)

What it Does: The Performance Head Gasket Kit replaces degraded factory seals on the 2004-2008 GMC Savana to eliminate combustion blow-by, prevent oil-coolant cross-contamination, and maintain cylinder pressure under severe duty cycles.

The Stock GMC Savana Sealing Limitations

The 4.8L and 5.3L Vortec platforms installed in the GMT610 Savana endure demanding fleet cycles, extended idling, and high-heat hauling. Factory graphite or composite head gaskets are susceptible to bore fatigue and micro-scrubbing caused by differing expansion rates between cast-iron blocks and aluminum cylinder heads. Over time, severe thermal cycling degrades the OEM fire rings and oil seals, triggering coolant loss into cylinders, valley cover leaks, and rear main seal seepage.

The Engineering Solution

This master engine overhaul set features Multi-Layer Steel (MLS) head gaskets built to absorb lateral thermal shear while maintaining combustion sealing under extreme cylinder pressures. Embossed viton-coated outer layers provide micro-sealing against minor block or head surface irregularities. Complete with high-temperature fluoroelastomer valve stem seals and reinforced intake and exhaust manifold gaskets, this kit delivers a high-integrity, leak-free mechanical seal that resists high-temperature degradation.

What's Included

• 2 Multi-Layer Steel (MLS) Head Gaskets
• 1 Rear Crankshaft Gasket Seal
• 1 Engine Oil Pan Gasket
• 1 Valley Cover Gasket
• Intake Manifold Gaskets
• Exhaust Manifold Gaskets
• Knock Sensor Grommets
• Damping Plug Heads
• Valve Stem Seals
• Fiber Base Plates
• Assorted O-Rings and Ancillary Gaskets

Technical Specifications

Compatibility

• 2004-2008 GMC Savana 1500 (4.8L / 5.3L V8)
• 2004-2008 GMC Savana 2500 (4.8L / 5.3L V8)
• 2004-2008 GMC Savana 3500 (4.8L V8)

Frequently Asked Questions & Fitment Warnings

Does this fit the GMT610 Savana?

Yes, this is a direct fit for the 2004-2008 GMC Savana equipped with the LR4 (4.8L) or LM7/LMF (5.3L) Small Block V8 engine. Note: Piston rings and head bolts are not included in this kit and must be purchased separately.

Are cylinder head bolts reusable on these engines?

No, the GM Gen III/IV V8 engines use Torque-to-Yield (TTY) head bolts that stretch permanently upon initial torquing and must be replaced during reassembly.

The GMC Commercial Caliber

Engineered for high-mileage commercial fleets and heavy-duty towing applications, this full gasket overhaul ensures maximum fluid containment and reliability under demanding payload conditions.