The Grumpy Grease Monkey mechanical engineer.
hey grumpyvette? I need to be able to roll over my crank several times, Especially while I work on my engine , and I would prefer not to risk messing up the crank snout threads for the balancer bolt. I need to check crank to cam TDC and turn the crank during cam installation and piston...
SBC crank socket
BBC crank socket
Pontiac crank socket
you do it off the lifter not the valve spring simply because adding the pushrod and rocker into the process adds far to many variables, like taking up slack, rocker ratios, friction,possiable ratio variations,manufacturing tollerances, etc. that use of the lifter riding directly on the cam lobe alone or that tool replacing the lifter so the dial indicator can be used easier (THE PREFERED, TOOL) totally eliminates, any variables, and allows faster rechecking
DEAL WITH A QUALITY MACHINE SHOP with a GREAT REPUTATION that depends on maintaining good customer feed back for repeat work.
a competent and experienced machine shop, machinist, you can trust to point out whats REQUIRED and what is SUGGESTED is a very valuable asset , you really should look for and researching what you think needs to be done, how that is accomplished and why its likely necessary in any particular application, goes a long way toward preventing both disagreements and wasted money on an engine build AS does having access too or better yet owning some precision measuring tools that allow you to check and verify that any machine work you pay for was in fact correctly done!