TPIS CNC Ported Cylinder Head Package (GM 113 Castings) SBC/TPI (Pair) OUTRIGHT
Your "113" SBC/TPI GM Head Castings are fully CNC ported. We install Manley 2.00" Intake and 1.5" Exhaust valves, .550 valve springs, lightweight retainers, professional valve job, deck resurface, guide plates, and your choice of 3/8" or 7/16" premium rocker studs.