I would like to run a lunati Voodoo 712 cam ,a hydraulic roller with gross lift of .571 intake and .587 exhaust on a set of EQ heads I plan to use on a 408 stroker.
What have you used for sbc rockers in 1.6 ratio, prefferably low cost, but good enough to stand up to this cam on the street? I plan on using the 5/16x3/8 stud kit sold to do this. Would also like any input on this setup.

Greg....... take a look at what the enginemasters builder who built my magnum motor did valvetrain wise on my motor.

Google....... LA confidential mopar....... that will pull up the build. At the end of the article you can select to view the 15 photos related to the build. Several good shots of my valvetrain and what parts he used.,

If you're on Facebook, check out IMM Engines, they're doing an EQ head/360 for Mopar Muscle mag, using the steel Chevy style rockers. Good video on pre-build parts selection, head prep, etc.

Just thought this through myself for a EQ headed project. Stumbled on some very near new Chevy roller rockers for pennies on the dollar, but struggled to get my brain around using a 5/16 to 3/8 conversion stud. At the same time, didn't want to remove any material from the pedestals to drill/tap for 3/8 studs.

Learned this stud has seen 400 lbs open and lives through it (knock on wood) so off we go!

Looks like they're pretty much all the same, see chart. Note how many part numbers there really are. Not very many, right?

http://www.cranecams.com/314-315.pdf

These are the least expensive Crane rockers, which were used on the Enginemasters 318 mentioned above, intake valves.

R.

He used 1.7 Harland Sharps on the intakes, 1.6 cranes on the exhaust

First off, thanks to everybody that contributed.
I watched Brians Video at IMM about the 5.9 build. Good info, I trust Brian and have done business with him in the past. Sharp guy. I also spotted the Hughes conversion, which has 1.65 ratio rockers and a common shaft for each pair of rockers.
I also took note of Brians' cam choice, along with not so good comments from my dyno guy on the rpm capabilities of the Voodoo cams. Looks like I will have to call him for a cam when time comes for that.

You might want to check the roller tip sweep across the tip of the valve. My engine guy in Tampa built a Magnum engine for a friend that used the MP aluminum Magnum heads. They discovered the SBC roller rockers were too short on those heads. The valve side of the rocker needed to be around .050" longer. From the T&D Technical Handbook, the stock 318 head needed a 1.52" fulcrum length, but they list the Magnum as 1.45" same as the "Most Popular V8". I'd check it anyway.

http://www.tdmach.com/catalog.html

I dont remember all the details but I was thinking that someone said that a furd roller rocker has a more correct fulcrum length than the chebby ones

Before I put mine together I had SBC rockers and found that the Buick guide plates where the closest, holes about .060 too wide apart. I was going to cut in half then tig en back together. Would have to use the cm pushrods too. They make a stud that's 5/16 bottom and 3/8 top. Then I got the Mopar rocker kit at blow out price and used those instead. If I do another engine I'll use the SBC ones.
Just read the last post and now that I think about it mine are ford rockers, been 13 years, brain fade.
Still on the engine stand too

Small blocks can be tough Greg. When properly set up, even the small block Chevy rockers are a bit too long. The 1.45" rockers are even longer yet. 1.52" is the standard big block rocker length, which is also too long when properly set up. I know where I can get a new, shorter rocker, but I haven't tried them yet.

I've used a stainless SBC roller rocker for most street Magnum builds, with a two piece guide plate tack welded together. It will have the sweep biased toward the exhaust side when the pushrod is the right length, but not too terribly.

Forgive me if this is a dumb question, but are guide plates required to use Chevy rockers on these heads?

Yes, unless you wanted to use the guided rockers, which personally I'm not a fan of.

I called Brian at IMM and he is going to put together a care package of most of what I need to finish this motor. I decided to not reinvent the wheel, go to someone that has been down this road. Thanks again for all the input, guys!