[Shaker666]

I had to use die grinder to slot the holes in the shims provided with the kit, but it wasn't a big deal. Shelton mentioned that the shims were Crower parts. Using the thickest 0.100" shims provided I appear to have optimal valve stem to rocker tip contact.

It was suggested to me that rather than have to adjust the lifter preload using the 1/2 to 3/4 turn method after zero lash, that I simply use a 0.080" shim once I had found the correct stand height. While that sounds fine and dandy, with the shims I received that would mean stacking 2 of them per intake/exhaust valve pair, one being 0.0465" and the other being 0.0215". I would also need to slot them similarly to how I worked the 0.100" shims.

Any thoughts there? The 1/2 to 3/4" turn method after zero lash sounds much more appealing, but not sure if that's acceptable to shaft mount rocker purists.

 

[CDW6212R]

How much different are the pushrod lengths required for the shaft rockers versus stud mounted rockers?

I could get to working on that soon after I get a few big things done. I was planning to start with fitting the lower intake and have Tom port it to match the heads, and then work on the valve covers(outlets, lettering, and paint).

 

[Shaker666]

How much different are the pushrod lengths required for the shaft rockers versus stud mounted rockers?

I could get to working on that soon after I get a few big things done. I was planning to start with fitting the lower intake and have Tom port it to match the heads, and then work on the valve covers(outlets, lettering, and paint).

Pushrod lengths appear to be identical on both intake and exhaust valves on my Canfields.

 

[CDW6212R]

Very good, but did you ever mock it up with regular stud mounted rockers, the pushrod length?

 

[Mark O'Neal]

Longer slot solves a problem that doesn't exist.

 

[65fasback]

I used two shims on my T&D shaft rockers. No issue.

 

[Shaker666]

Very good, but did you ever mock it up with regular stud mounted rockers, the pushrod length?

So I did not build this engine, but obtained it through an insurance deal. It was setup with 6.800" pushrods and no-name rocker arms. The pushrods were all mismatched in terms of their manufacturer as well. Using the valve stem tip markings, I've determined that the 6.800" pushrod is correct even for the LGM shaft rocker system, but I've ordered a set of EnginePro 5116 series cromo pushrods for a matched (and much stronger) set.

Here's the wear pattern on the valve stem tips with the LGM rockers and a 6.800" pushrod:

 

[65fasback]

I’d be happily for the application.