Economical replacement rocker arm set?

forphorty said
I just threw a Summit cam and lifter set in an otherwise internally stock 318. With a .039 compressed head gasket, my pushrods are borderline too short. No noise, but I have VERY little lifter preload. As theham mentioned above, this should be checked. Btw, my rockers/shafts are in great shape(75,000 mile engine).

That is an interesting data point.... thanks for posting.

FWIW, changes in head gasket thickness will also change preload. A .010" increase in head gasket thickness will reduce preload by approximately the same amount. But it would take a heckuva thick head gasket to take out all of the stock preload!