What brand rockers are these?

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75slant6

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Hey everyone, so these rocker arms popped up for sale on a Mopar fb page and I thought I’d take a gamble on them. As can be seen in the pictures, the rocker arm with the X on it, is cracked. Anyone know what brand these are or know what brand I should get a replacement rocker from? I got them for $100 shipped, so figured it’s worth a shot.

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I’m going with Indy/Dove 1.6’s for a big block.

Proform rockers are also blue.
 
Are the rockers bushed? If not I'm inclined to say those are Proform rockers. 65'
 
Have a set of Dove that are dark blue like those....and as said Proform are blue.
 
If one is cracked for sure, Caleb, I would definitely get all the others checked too, regardless of brand. If the rest check good, I'd say you done alright!
 
I don’t recall seeing that type of rocker for a SB that has the adjuster screw not centered in the body.
They are normally in line with the roller:

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The ones in the op look more like this:

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I guess I’d set them on a stock head and see how/where things line up.
 
If one is cracked for sure, Caleb, I would definitely get all the others checked too, regardless of brand. If the rest check good, I'd say you done alright!
How would I go about having them checked? Take them to a machine shop?
 
How would I go about having them checked? Take them to a machine shop?
They are aluminum, so they'll have to be dye checked. If you were local, you could bring them over and I'd do it for you. I have a whole dye penetrant kit I bought years ago for checking aluminum for cracks.
 
Interesting that the original post mentions a cracked rocker and the photo that appears to be a match to that set (post #8) also shows a broke rocker.
 
Since you got such a smokin deal on them, send them to Rocker Arms Unlimited and have them checked out and bushings added. They might even have a single laying around for your needed replacement. Good guys and top notch craftsmanship.
 
I would guess those are big block rocker arms given the adjuster is offset and not centered. Measuring the length of the shaft and the hold down blocks will be another clue to what they are as well as mocking them up on a head to see how everything aligns when you get them.
 
They broke... so who cares ..cause you ain't running them. Right.

I've run a few set of aluminum..never had them break. I cycle them out after short usage, like a yr maybe. I keep them with the idea I'll bush them and maybe use them again. Mainly the ones I have are bearing types that the races wear out in.
 
Here’s one sitting on a speedmaster head

You should stick some valves in the head and see how the roller sits on the valve.
Big block rockers “should” be obviously too long.

I’d expect the offset adjusters on those rockers to cause some interference issues with the pushrods and the thru holes in the heads.
 
I’ll put some valves in the heads today and see how they line up, but the hold down bolt locations line up perfectly with my heads. Is the bolt hole spacing the same between sb and bb?
 
Well, unfortunately, I haven’t been finding any glowing reviews on the Indy rocker arms. Seems most people are saying that they just can’t hold up to the spring pressure of a roller cam. What would y’all suggest? Buy 1 new rocker and flip this set to buy something else? Or buy 16 new rockers of a different brand and reuse these shafts? Or just cut my losses and chalk it up to a $100 lesson?
 
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