RB26 Cylinder head - STAGE 1
**Complete cylinder head, assembled and ready to bolt to a short block**
All cylinder head cores are stripped down to the bare bones, then jet washed, hot tanked in an aluminium safe chemically agitated/heated cleaning solution. This process cleans all of the oil and coolant galleries of any residual material. They are then machined and jet washed then rinsed again to ensure any and all metal removed during the machining process is removed.
In a STAGE 1 cylinder head we use entirely stock valvetrain that has been cleaned, inspected, and clearance checked. We test every valve spring for tensile strength. The head is well designed from the OEM and many of our builds have reached over 500whp on our dyno with this exact set-up.
Select a set of drop-in cams from the drop down menu if you are looking to make some more top-end power. Stock RB26 cams reach peak power at about 6000RPM and begin to fall off after that. Tomei TYPE B would help shift the power band higher, often reaching peak power in the 6600RPM range. Any more aggressive cams would require valvetrain upgrades.
-Valve seals replaced
-Valve guide clearance checked, replaced if out of spec
-cam seals installed
-Valve lash checked and adjusted to specification of camshaft