In case you don't know me, I'm BillBoost, finder of good deals on parts. If the part wasn't a good deal, it probably hasn't found it'* way onto my car yet. This helps contribute to my car being a bit confused as to it'* identity, since it has parts from a bunch of other years and models.
Anyhow the latest parts to find their way into my possesion was a set of PRJ stage 3 heads. This means they've had some porting work, hardened valve seats, larger valves and brass valve guides. Being used I brought them to the machine shop. They were cleaned, tanked and refreshed with a valve job, spring seat milled to correct for 1.800" expected install height of the springs and reassembled with 130# springs, titanium retainers and HD valve locks.
Pulled the heads off the car one at a time, cleaned the surface and the pistons.
Checked with friends regarding the numbers on the pistons. They confirmed them to be stock
The main reason the heads went to the machine shop as I could have cleaned them etc was to be measured for clearance between the spring retainer and the valve seal. This is known as the total amount of lift. Or the total distance the valve can be pushed down w/o binding the spring or hitting the valve seal and retainer. The number needed was .600", they were at closer to .700.
Having this much lift allowed me to factor in the Intense S1X cam already in the motor with 1.8 ratio rockers on top. This is known as extreme for a total lift in the .590'*.
The supervisor was on duty to ensure things went well
Heads are held down with an ARP head stud kit.
It'* been a couple of days and I'm poking along wasting time when I could finish a few things before other parts that I ordered late arrive. Instead it'* more enjoyable to take it a little at a time.