Anyone else seen these?
I bought a set last week, they arrived today. the pictures on their site make them look red anodized. Mine here are plain aluminum. No problem though. As long as they work right, who cares about the color?
I'm a bit disappointed though that they came with NO instructions at all. Sure, there are shims, spacers, holddowns and all. Some rocker arms are offset, others are straight. I suppose they think that everyone with the ability to call and order them MUST be smart enough to figure it out?
Maybe not....
Okay...You may be ready to suggest that I simply CALL Mancini directly, and I would agree with anyone that said it. Trouble is, I get busy with other stuff and by the time I think to call, they are closed. This seems to be a pattern with me. I am out here on the LEFT coast and SO many performance companies are back east. By the time I get ready to work on stuff, the companies are closed for the day, or weekend!
I suppose in the event that I can't get a picture or a schematic, I'll just take a spare BB head and mock everything up on a table. It beats working under the hood and all that back and forth that would bring...
Anyone BEEN here before?

 

I was able to call Mancini today. The man said that the offset rockers are intended for the intake valves and the standard ones are for the exhaust. When I asked about why no instructions are included, he agreed that there should be something. He was going to talk with the management to see about making some generic drawings and instructions. He said that the spacers and shims will be positioned differently depending on the cylinder head they are on. For example, Edelbrock aluminum heads VS stock cast iron. I told him that having a standard template to work from would be helpful.
I'll be busy with other stuff for a week or so, so it will be awhile before I can get back to the car.

 

They tried to blow some smoke. There should be no valve location differance between a aluminum and steel Mopar head.

 

I figured that the rocker stands on the Edelbrocks may be thicker or thinner and maybe that is what he meant. When I realized that there were no instructions, I just figured I'd mock up each side on a spare iron head. I still might. It would at least get me a starting point from which to make adjustments.

 

The man at Mancini said that in most cases of an RB engine, a 9 1/8" pushrod is the standard length.

 

Its easy to figure out just start putting it together, it will only work one way. If you shim it wrong or put the rocker on wrong it is as plain as day and night, and wont line up with the valve..

 

Thank you.
The pushrod length checking tool was another thing that came with no instructions. NOT everyone that buys parts is a seasoned engine builder!
This tool is labeled 8.8 to 9.8. When tightened up, it measured 8 15/16" with a tape measure from end to end. I was able to spin it 22 turns out before it came apart. That allows more than an inch difference from 8.8 inches.
I was wondering if the method is as follows:
Install rocker arms, torqued to spec.
Adjust checking tool until it fully seats to the point of zero lash/difficulty in spinning.
Adjust rocker arm adjuster to 1/4 to 1/2 turn tighter.
Remove checking tool and measure length.
THIS is where it gets fuzzy: Measure the length where? Is it the total length or from the ball end at the lifter and the recess inside the cup end? To measure to the outside of the cup end seems inacurrate if different pushrod manufacturers have deeper cup ends.