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Old 02-11-2006, 11:40 PM
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Default Valve seats

What would I need to have 5.3L heads intake valves enlarged to the 5.7L 2.00" size?
Old 02-11-2006, 11:49 PM
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I have 5.3 heads and had 2.02" intake & 1.575 exhaust valves put in the factory seats but had the seat opening enlarger to let more fuel & air in for the larger valves
Old 02-11-2006, 11:56 PM
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so the seats are not press in? I thought they were seperate peices. If they are just cut into the chamber, how much would it cost to have done???and one know?
Old 02-12-2006, 12:43 AM
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They are pressed in ,But are big a nought for 2.02" valves ,and yes you will haft to port the bole area to let more air in to the chamber




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