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GMC Sierra 3500 Engine

162 parts · fits 1999–2026 · compared across 375+ retailers · page 2 of 4

Cometic GM LS1 SB 4.100in Bore .040in MLS-5 Head Gasket

Cometic GM LS1 SB 4.100in Bore .040in MLS-5 Head Gasket

Cometic GM LS1 SB 4.100in Bore .045in MLS-5 Head Gasket

Cometic GM LS1 SB 4.100in Bore .045in MLS-5 Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.100in Bore .051in MLS-5 Head Gasket

Cometic GM LS1 SB 4.100in Bore .051in MLS-5 Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.100in Bore .056in MLS Head Gasket

Cometic GM LS1 SB 4.100in Bore .056in MLS Head Gasket

Cometic GM LS1 SB 4.100in Bore .056in MLS Head Gasket

Cometic GM LS1 SB 4.100in Bore .056in MLS Head Gasket

Graveyard Performance

Cometic GM LS1 SB 4.100in Bore .060in MLS-5 Head Gasket

Cometic GM LS1 SB 4.100in Bore .060in MLS-5 Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.100in Bore .062in MLS-5 Head Gasket

Cometic GM LS1 SB 4.100in Bore .062in MLS-5 Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.100in Bore .066in MLS-5 Head Gasket

Cometic GM LS1 SB 4.100in Bore .066in MLS-5 Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.100in Bore .070in MLS-5 Head Gasket

Cometic GM LS1 SB 4.100in Bore .070in MLS-5 Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.100in Bore .075in MLS-5 Head Gasket

Cometic GM LS1 SB 4.100in Bore .075in MLS-5 Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.100in Bore .080in MLS-5 Head Gasket

Cometic GM LS1 SB 4.100in Bore .080in MLS-5 Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.130 inch Bore .027 inch MLS Head Gasket

Cometic GM LS1 SB 4.130 inch Bore .027 inch MLS Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.130 inch Bore .030 inch MLS Head Gasket

Cometic GM LS1 SB 4.130 inch Bore .030 inch MLS Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.130 inch Bore .036 inch MLS Head Gasket

Cometic GM LS1 SB 4.130 inch Bore .036 inch MLS Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.130 inch Bore .040 inch MLS Head Gasket

Cometic GM LS1 SB 4.130 inch Bore .040 inch MLS Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.130 inch Bore .045 inch MLS Head Gasket

Cometic GM LS1 SB 4.130 inch Bore .045 inch MLS Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.130 inch Bore .051 inch MLS Head Gasket

Cometic GM LS1 SB 4.130 inch Bore .051 inch MLS Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.130 inch Bore .056 inch MLS-5 Head Gasket

Cometic GM LS1 SB 4.130 inch Bore .056 inch MLS-5 Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.130 inch Bore .060 inch MLS-5 Head Gasket

Cometic GM LS1 SB 4.130 inch Bore .060 inch MLS-5 Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.130 inch Bore .066 inch MLS Head Gasket

Cometic GM LS1 SB 4.130 inch Bore .066 inch MLS Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.130 inch Bore .070 inch MLS-5 Head Gasket

Cometic GM LS1 SB 4.130 inch Bore .070 inch MLS-5 Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.130 inch Bore .075 inch MLS-5 Head Gasket

Cometic GM LS1 SB 4.130 inch Bore .075 inch MLS-5 Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.130 inch Bore .080 inch MLS-5 Head Gasket

Cometic GM LS1 SB 4.130 inch Bore .080 inch MLS-5 Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.130 inch Bore .098 inch MLS-5 Head Gasket

Cometic GM LS1 SB 4.130 inch Bore .098 inch MLS-5 Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.130 inch Bore .120 inch MLS Head Gasket

Cometic GM LS1 SB 4.130 inch Bore .120 inch MLS Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.160 inch Bore .027 inch MLS Head Gasket

Cometic GM LS1 SB 4.160 inch Bore .027 inch MLS Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.160 inch Bore .030 inch MLS Head Gasket

Cometic GM LS1 SB 4.160 inch Bore .030 inch MLS Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.160 inch Bore .036 inch MLS Head Gasket

Cometic GM LS1 SB 4.160 inch Bore .036 inch MLS Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.160 inch Bore .040 inch MLS Head Gasket

Cometic GM LS1 SB 4.160 inch Bore .040 inch MLS Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.160 inch Bore .051 inch MLS Head Gasket

Cometic GM LS1 SB 4.160 inch Bore .051 inch MLS Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.160 inch Bore .056 inch MLS-5 Head Gasket

Cometic GM LS1 SB 4.160 inch Bore .056 inch MLS-5 Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.160 inch Bore .060 inch MLS-5 Head Gasket

Cometic GM LS1 SB 4.160 inch Bore .060 inch MLS-5 Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.160 inch Bore .066 inch MLS Head Gasket

Cometic GM LS1 SB 4.160 inch Bore .066 inch MLS Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.160 inch Bore .070 inch MLS Head Gasket

Cometic GM LS1 SB 4.160 inch Bore .070 inch MLS Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.160 inch Bore .075 inch MLS-5 Head Gasket

Cometic GM LS1 SB 4.160 inch Bore .075 inch MLS-5 Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.160 inch Bore .080 inch MLS-5 Head Gasket

Cometic GM LS1 SB 4.160 inch Bore .080 inch MLS-5 Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.190in Bore .027in MLS Head Gasket

Cometic GM LS1 SB 4.190in Bore .027in MLS Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.190in Bore .036in MLS Head Gasket

Cometic GM LS1 SB 4.190in Bore .036in MLS Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.190in Bore .066in MLS Head Gasket

Cometic GM LS1 SB 4.190in Bore .066in MLS Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.190in Bore .070in MLS Head Gasket

Cometic GM LS1 SB 4.190in Bore .070in MLS Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.190in Bore .075in MLS Head Gasket

Cometic GM LS1 SB 4.190in Bore .075in MLS Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.190in Bore .080in MLS Head Gasket

Cometic GM LS1 SB 4.190in Bore .080in MLS Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.190in Bore .092in MLS Head Gasket

Cometic GM LS1 SB 4.190in Bore .092in MLS Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.190in Bore .098in MLS Head Gasket

Cometic GM LS1 SB 4.190in Bore .098in MLS Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.190in Bore .120in MLS Head Gasket

Cometic GM LS1 SB 4.190in Bore .120in MLS Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.190 inch Bore .030 inch MLS Head Gasket

Cometic GM LS1 SB 4.190 inch Bore .030 inch MLS Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.190 inch Bore .040 inch MLS Head Gasket

Cometic GM LS1 SB 4.190 inch Bore .040 inch MLS Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.190 inch Bore .045 inch MLS Head Gasket

Cometic GM LS1 SB 4.190 inch Bore .045 inch MLS Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.190 inch Bore .051 inch MLS Head Gasket

Cometic GM LS1 SB 4.190 inch Bore .051 inch MLS Head Gasket

Head Games Motorworks

Cometic GM LS1 SB 4.190 inch Bore .060 inch MLS-5 Head Gasket

Cometic GM LS1 SB 4.190 inch Bore .060 inch MLS-5 Head Gasket

Head Games Motorworks

Other GMC Sierra 3500 Categories

Exhaust54 Exterior49 Suspension49 Electronics27 Brakes26 Forced Induction23 Intake23 Fuel14 Cooling13 Wheels & Tires7 Interior6 Drivetrain6 Other1

Prices and availability come from the retailer and can change. Links go directly to the seller; some are affiliate links.