Page 155 of GM Performance Parts 2006 Catalog by GM Parts Direct

153 NOTE: NOTE: NOTE: CYLINDER HEAD GASKETS HEAD BOLTS GM Performance Parts cylinder head gaskets, cylinder head bolts, and cylinder head studs are the finest quality parts available to ensure a secure seal between the engine block and cylinder heads. Gasket packages contain one gasket unless otherwise specified. Order two per engine. Small-block cylinder head gaskets are available in a variety of materials and thicknesses. Keep in mind your engines intended usage and minimum pistonto-head clearance when selecting gaskets. A. 10105117 Composition Head Gasket Composition head gasket with stainless steel fire ring for stock or mildly modified engines with 4.00" cylinder bores and cast iron or aluminum heads. Compressed thickness is 0.028". 3830711 Steel Shim Head Gasket Gasket for stock and mildly modified engines with 4.00" cylinder bores. Compressed thickness is 0.026". 12557236 Composition Head Gasket Head gasket with stainless steel fire rings for cast iron or aluminum heads. Used on ZZ4 and 350 HO engines. Compressed thickness is 0.051". B. 10185054 Heavy-Duty Composition Head Gasket Teflon-coated gasket with pre-flattened wire O-rings around each cylinder. For competition engines with cylinder bores of 4.00" to 4.125". Compressed thickness is 0.041". Drill steam holes when used on 400-ci smallblocks. Gasket does not require re-torquing. C. 12363763 Special Competition Head Gasket Teflon-coated, heavy-duty composition gasket with preflattened steel fire rings and 4.200" bore for Bowtie, 400 small-blocks, and aluminum blocks with cast iron or aluminum heads. Gasket has revised coolant hole pattern, but no steam holes for production 400 engines. Compressed thickness is 0.038". Gasket does not require re-torquing. 10159455 Composition Head Gasket Composition gasket with stainless steel jacket for 302-400 engines with bore diameters between 4.00 and 4.125". Compressed thickness is 0.039". 14096405 Composition Head Gasket Composition gasket with stainless steel on one side and graphite on the other. Compressed thickness is 0.028". Composition Head Gasket A Heavy-Duty Composition Head Gasket B Special Competition Head Gasket C

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