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CNC Ported GM LS3 (821/823/L92) Casting

CNC Ported GM LS3 (821/823/L92) Casting

$1,500.00 Regular Price
$1,400.00Sale Price

CNC ported GM LS3 (821/823/L92) Castings

283cc Intake runner, 94cc Exhaust

2.165/1.59 Valve Size

68cc Chamber

sold in pairs

  • General Reccomendations

    Wilkes Performance assumes no responsibility for damage if the end user builds an engine without properly verifying he has enough piston to valve clearance (depth and radial clearance both checked). It is recommended for a minimum depth of .080″ on the intake valve and .100″ on the exhaust with a radial clearance of .030″ minimum around the perimeter of each valve.  It is the customers responsibility to verify proper piston to valve clearance.

  • CNC Porting