Engine Options...

[o2man98]

If you plan on running the L76 6.2 heads you must also convert to the L92 intake manifold to compensate for the changed angles of the mounting flanges. Do not worry these parts are cheap when you consider what you are getting. GM is really coming around to the performance parts sector.

Part Numbers
GM #12590771 2.16 intake valve
GM #12582719 1.59 exhaust valve
GM #12582714 L92 Bare Cylinder head
GM #12600936 Rocker arm pedestals
GM #12569167 Intake Rocker arm
GM #10214664 Exhaust Rocker arm
GM #12590124 L76 Style Intake manifold
GM #12499225 LS Series lifter kit(newly designed for high RPM LS7 usuage)