Reply to "Edelbrock heads"

74 LOOKER,
PanteraDoug is right but, if you retorqued & got a 1/4 turn on your 1/2" bolts you pulled down the head another .019" minus stretch of the bolt.This is obtained by knowing your head bolts are 1/2" x 13 threads, you take the 13 threads and divide into 1 and get .076" a turn, then because you only got a 1/4 turn you divide .076"/4 and you get .019" So this is not so bad. look at some info on the total float of a Hydralic lifter, I believe total float in a lifter is approx .125". The preload is set at about 1/2 or around .060".
I think your OK were this stands.
By the way I work/machine aluminum, compared to iron it's like spagetti,not that rigid, look at an air plane wing flex.

What about the leak, did it stop? If not short of a head removal there are some wonderful sealants I have used that may work, I have used them on my Imports, Iron to aluminum heads and ran 100,000 mi more on the engine's. Just a thought. Anyway's good luck.

Mark

http://www.cranecams.com/?show=hydraulicLifters