Sorry I just read this and dont know if youv made a fix yet. The chevy vortechs as well as the 2800 or use a plasic intake runner gasket embossed with rubber. Thes gaskets shrink and crack leading to leaks. The proper fix is a Fel-pro gasket made of steel and embossed with silicone, I dont know the part# sorry. Also look closely at the heater hose fitting, these pieces are cast from cheap pot-metal and are prone to breaking off in the manifold. Napa sells a steel piece to fix this as well.
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Sunday, January 6th, 2008 AT 11:21 AM