YODAONE
May 22, 2017
Image depicts fabricated 1/4" steel.plate which replaces the ACIS butterfly valve assembly in the upper intake plenum during extrude honing. Notice the two countersunk holes that provide clearance of the registration pins (for butterfly valve assembly port centerinng) and allow flush mounting over ports. You can see perfect circular burnishing of plate where extrude honing material containment occured as it traveled entire length of intake runners
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1998-2000 ls400 (2001-2006 ls430) intake manifold extrude honeMore About This Picture
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