whitehawk#33

My buddy and I just finished installing comp cams, valve springs, and bbk headers in his 2000 gt. When we cranked it up it ran fine except for the loud valve like noise.. I am guessing that there is too much lash at the base of the cam's lobes. How would i go about fixing that? Could i shimmy up the lash adjusters to compensate?
Here are the specs for the cam, everything is bone stock expect for the cams and springs.
Comp Cam Data Sheet
Part Number: 102600 Grind Number: XE270AH
Lifter Type: None - OHC Engine Type: FORD 4.6 and 5.4 SOHC MODULAR 2-V (1992-Present)
RPM Range: 1800 to 5800 Valve Timing : 0.05
Lobe-Center Angle 113 Intake Center Line: 109

Intake Exhaust
Valve Lash: Hyd. Hyd.
Duration: 270 274
Duration @ .050" Lift: 234 238
Valve Lift: 0.55 0.55
Lobe Lift: 0.3 0.3

Valve Timing @ 0.05" Lift: Open Close
Intake: 8 BTDC 46 ABDC
Exhaust: 56 BBDC 2 ATDC

Rob72

Are you sure it's not the headers leaking? Also header steel isn't as thick as a cast iron manifold so it doesn't hold as much noise in. As soon as I installed mine I noticed the valves making more noise. That was the only modification I did at that time so I knew it was only the headers causing it. I don't think there's any adjustment on the lash adjusters.

whitehawk#33

I think it might actually be valve to piston contact.. From what I hear there is very little clearence in these motors. The cam I have was advanced 4 degrees by comp so i'm going to move it back 2 degrees and see what that does hopefully itl help.. But thats good to know about the headers I'll keep that in mind if I still hear the noise.

Rob72

Many people prime the engine 1st to get all of the hydraulics pumped up.