Page 184 of GM Performance Parts 2006 Catalog by GM Parts Direct

Choke Hole Cover A Gasket Kit, 1971-86 ZZ350 C Gasket Kit, Vortec Design D Gasket Kit, Production Vortec Design E Gasket Kit, LT4 F CHEVY SMALL-BLOCK V-8 182 Intake Manifolds, Gaskets Components Continued Covers and Plugs A. 14094792 Choke Hole Cover Covers the choke hole on the 350 HO manifold P/N 10185063. Use gasket P/N 14096848 and screw P/N 9442184 with washer P/N 9439511. 6269414 Cover, EGR Valve (not shown) Covers the EGR valve port on the 350 HO manifold P/N 10185063. Use gasket P/N 12554530 and screw P/N 9442184 with washer P/N 9439511. B. 12556596 Plug, EGR Pipe Hole This 7/8-15 plug is used to seal off EGR pipe holes on intake manifold P/N 12496820 and P/N 12496821. Intake Manifold Gaskets C. 10147994 Gasket Kit, 1971-86 ZZ350 For 302-350 high-performance small-blocks built from 1971-86, and all ZZ350 high-performance engines. Gaskets fit standard intake port location. Do not use with raised runner cylinder heads. Package includes two gaskets. D. 12497760 Gasket Kit, Vortec Design This kit is designed for Vortec heads P/N 12529093, P/N 12558060, P/N 12464298 and 12497186 only. Gasket thickness is 0.120" (1/8"), post size is 1.08" x 2.16" with tapered wall, and it has both early style six-bolt pattern and Vortec four-bolt pattern. Package includes two gaskets. E. 89017465 Gasket Kit, Production Vortec Design This is the production gasket for all Vortec-design cylinder heads (four-bolt attachment to cylinder heads P/N 12529093 and P/N 12558060). Requires the use of GM attachment bolt P/N 12550027, because the bolt has a ball design on the end that seats in the head so it will not crush the intake manifold gasket. Package includes two gaskets. 12528884 Gasket Kit, LT4 (not shown) Used on the LT4 kit engine P/N 12371172. Package includes two gaskets. 10185042 Gasket Kit, Splayed-Valve (not shown) Used only on the splayed-valve V-8 cylinder heads P/N 24502517 or P/N 24502517. Package includes two gaskets. 10185007 Gasket Kit, 18-degree High Port Heads (not shown) Used only with V-8 18 high port cylinder heads P/N 10134363 and P/N 10134364. Package includes two gaskets. 12524653 Gasket Kit, LT1 four-barrel conversion (not shown) Required when installing a four barrel manifold on any LT1 engine. Package includes two gaskets. F. 12367777 Gasket Kit, LT4 This gasket can be used with all LT4 heads and is designed not to cover part of the cylinder head opening as production gaskets do. One gasket per package. Order two per engine. Plug, EGR Pipe Hole B

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