CNC PORT, 6 Cylinder Assembly:Valve Seals and Final assembly recommend BC spring kit if

recommend BC spring kit if exceeding 8600 rpm

all necessary hardware included

Putting the tank on top not only delivers more coolant but more core surface area inside the plenum

The MLS head gasket is comprised of a three layer setup - Viton coated embossed spring steel outer layers surround a steel inner layer that provides support and thickness to the gasket

and dominate the off-road terrain like never before

CNC PORT, 6 Cylinder Assembly:Valve Seals and Final assembly recommend BC spring kit ifCylinder head cleaning & inspection CNC Runners CNC Newen Valve job CNC Surfacing Final Cleaning Send all cores in with invoice, estimated turnaround is 10 15 business days from time of arrival. Cylinder heads that qualify: B58 Gen 1 & Gen 2 (2 port heads are CNC ported Intake side ONLY) S58 2JZ RB26 (Available Soon) Send all cores in with your sales receipt. All machining and assembly services are available, contact us for a consultation regarding