Cometic Chevy Small Block 4.200 inch Bore .040 inch MLS Headgasket (w/All Steam Holes)

Shop Cometic head gaskets, gasket kits, and engine sealing components by exact manufacturer part number, verified vehicle application, and required engine-build specifications.Choosing the Correct Cometic Gasket Match the complete year, make, model, and application when listed Confirm engine family, bore, gasket thickness, material, and sealing surfaces Verify port shape, bolt pattern, coating, included quantity, and fastener requirements Use the exact Cometic part number to distinguish similar configurations Frequently Asked QuestionsCan I select a head gasket by vehicle alone?No. Also confirm the exact engine, bore, compressed thickness, material, deck and head condition, fasteners, and manufacturer part number.Does gasket thickness affect the engine build?Yes. Thickness can affect installed clearances, compression ratio, and quench. Use measured build data and qualified engine-builder guidance rather than vehicle fitment alone.What surface preparation is required?Follow the curre...

Shop automotive engine parts, cooling-system components, oil-system upgrades, ignition parts, pulleys, sensors, gaskets, fuel components, and engine-bay accessories at Black Ops Auto Works. This collection covers vehicle-specific replacement parts, performance upgrades, supporting hardware, and universal components for street cars, trucks, SUVs, Jeeps, diesel vehicles, off-road builds, and motorsport applications. Engine Parts and Performance Components The Engine collection brings together components used throughout the engine, lubrication system, cooling system, ignition system, fuel system, crankcase ventilation, accessory drive, and engine compartment. Available products range from replacement sensors and gaskets to rotating-assembly parts, performance cooling systems, supercharger pulleys, catch cans, cylinder heads, camshafts, intake manifolds, and engine-bay dress-up components. Engine compatibility cannot be determined from vehicle model alone. Confirm the exact year, make, ...

Cylinder head components and engine internals for performance builds and OE service are stocked at Black Ops Auto Works. Shop complete cylinder heads, head gaskets, head stud and bolt kits, rocker arms, lifters, camshaft and lifter kits, rotating assemblies, and main stud and bolt kits for LS, LT, HEMI 5.7/6.1/6.4, Coyote, Cummins, Powerstroke, VW/Audi turbo, Subaru, Nissan, and import platforms. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 972 Head Components SKUs across component type, engine platform, and bore or gasket specification. What This Collection Covers Head Components groups together the parts that live at and around the cylinder head, the area of the engine most affected by heat, combustion pressure, and clamping load. This includes complete heads, head gaskets, head studs and bolts, rocker arms, lifters, camshaft and lifter kits, main stud and bolt kits, and ro...

Head gaskets for HEMI Hellcat, GM LS and LSX, Nissan RB26DETT and SR20, Subaru EJ series, BMW S58 and B58, VW/Audi turbo four cylinders, and Dodge Viper platforms are stocked at Black Ops Auto Works. Shop multi layer steel head gaskets, top end gasket kits, and bore and thickness specific gaskets from Cometic and HKS for street, track, and forced induction builds. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 601 Head Gaskets SKUs across bore size, gasket thickness, and platform specific categories. What This Category Covers The Head Gaskets category groups together the sealing components that sit between the cylinder head and engine block, along with related top end gasket kits. Coverage spans multi layer steel (MLS) head gaskets, DST cylinder head gaskets in multiple thickness options, top end gasket kits that include valve cover and intake gaskets, and application specific ...