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99BlackPonyGT -> RE: shoulder pain **** aghghh (5/9/2008 7:36:58 AM)
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nope...intake valves are always bigger...more air the engine can suck in the more it can breathe and therefore more hp... exhaust is pushed out smaller valves....also the intake valves are aluminum and the exhaust have to be a different metal that can survive heat...aluminum exhaust valves would melt...thats why i think the darker in that pic if exhaust...the intake valves dump air into the cylinder and then the valves close, then the fuel injector shoots into the cylinder, and the piston comes up to compress the air/fuel mixture, then the spark plug ignites and causes combustion, the piston shoots down and the exhaust valve opens and the piston comes back up and pushes the exhaust out..not sure what you meant about one valve containing gas
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