|
These heads require 5 day lead time for machine work
"Get the most out of your Vortec Heads" - You asked and Pace performance listened... We are proud to offer a cast-iron Vortec cylinder head that will accommodate up to a .550" lift camshaft.
We start with a "Brand new" #12558060 Vortec head pull the pressed-in studs and drill and tap them for a 3/8" screw-in stud.
Next we machine the head and install a set of 1.379" diameter GM Performance springs and clearance the valve guides for clearances up to .550" gross lift.
* Brand New Casting
* 64cc Combustion Chamber
* 1.94" intake valve/ 1.50" exhaust valve (valves included)
* Set-up for 3/8" screw-in studs
* Will accommodate up to .550" lift
*Straight Spark Plugs*
Steam holes are also drilled, for use on 400 blocks.
|
