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Thread: Larger Valves in a 5.3L

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  1. #1
    Join Date
    Apr 2003
    Location
    Allen, Tx(DFW)
    Posts
    445
    The heads I have are casting 706. Stock seats were used but I had a couple of seats replaced due to a mishap at the machine shop. Who are you gonna have do the machine work?
    02 Silverado
    02 TrailBlazer

  2. #2
    J-Team, a local machine shop here in casper. He is one of the best in the state. (Wyoming) Has done lots of work for my buddy and has done exceptional work every time. Ordered a single LS6 Intake valve on thursday to take in with them and we will wait and see what he can do. Was also going to see about getting them milled .030 to get my compression up a bit. By my figure .030 should put me right around 10.1-

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