hughes 1.65 shaft roller rockers for magnum heads....

[POS Dakota]

POS,,,,,,,,,

Looking good!! Still haven't painted mine...

Little by little...

 

[fishy68]

Very nice looking rockers. Harland Sharp magnum rockers are a very similar design but it looks like the connecting bar on the Hughes rockers is a lot bigger diameter. I doubt it makes much diff. though since it's just mainly to keep the rockers from rotating. Here's some pics of my Harland's and the geometry on my Iron Ram's. The valves are stock length I believe

 

[POS Dakota]

Is this running yet? If so, how are they holding up?
Yep, pattern looks just fine to me.

 

[fishy68]

Is this running yet? If so, how are they holding up?
Yep, pattern looks just fine to me.

Not yet. I just got the bottom end assembled saturday. Still got some porting to do on the heads and get some machine work done. Hopefully within the next 2 weeks I'll have it done.

 

[POS Dakota]

Not yet. I just got the bottom end assembled saturday. Still got some porting to do on the heads and get some machine work done. Hopefully within the next 2 weeks I'll have it done.

My geometry needed to be corrected because the installed height is higher, but not a problem...

I bought some perfect sized flat steel stock I am going to use to shim my rockers up. I went to a metal supply place today, and I was unaware how many different thicknesses they had of different bar stock. I found the thickness I needed and now I'm golden.

This is going to be one shim all the way across the head with the bolt holes drilled through them for the pedestals. This way, everything is tied together and flat.
The bar is the same width as the bosses on the head are and the rocker pedestals, so it will be solid and stable.

And today I got a PM from Brian that my rotating assembly was shipped last wednesday. It should be here tomorrow, along with some snazzy fabbed polished valve covers and billet breathers I ordered somewhere else. Coolio!

more pics to come I guess...:toothy10:

 

[Mad Dart]

You are moving right along POS!!!!!!!! I like the idea of the flat stock!

 

[POS Dakota]

Any part numbers you want to send would be appreciated.

I've got the old Crane stud conversion kit sitting here, but I've heard the geometry is inferior to the hughes stuff.

I'm running the stock valvetrain on my Magnum right now, and its acceptable, but obviously not ideal.

Pushrod guideplates are part number 4825.
I cant get a number off the studs, all they say on them is ARP.
They are 1 3/4 inch tall from the bottom of the hex.
3/8th stud on top and 5/16 bottom.

sorry about the delay. if I can find the part number for the studs, i'll give that. maybe someone else will know in the meantime.

 

[POS Dakota]

You are moving right along POS!!!!!!!! I like the idea of the flat stock!

It's funny because the original idea was to make a shim for each pair of rockers. Then I thought, DUH! just lay one whole piece down and drill a hole for each bolt so the bolts for the pedestals can go through. Perfect! it's nice because everything is tied together that way. All studs holding it down will stop anything from moving at all.

I'll make some templates and do it this weekend. Tomorrow I will have ADD from checking out all the stuff coming in. Good times.

 

[fishy68]

Sounds like a good plan POS.

BTW: I bought a set of those studs from Summit a year or so ago. I'd think they still have them.

 

[POS Dakota]

I finally made the shims to raise my rockers up a bit.
There are 4 for each head since they are paired.

3/4" wide, by .120 thick.

You can see where the roller sits now.
I'm happy with it.

 

[Mad Dart]

Looks way good.

 

[fishy68]

Looks real good.

 

[needsaresto]

I like the solution! Took care of it in an economical and effective way! I still have my magnums so I'll keep this in mind. I may have need of it..

 

[POS Dakota]

I like the solution! Took care of it in an economical and effective way! I still have my magnums so I'll keep this in mind. I may have need of it..

It doesn't have to be shiny billet aluminum and cost 800 dollars to do the job. All it has to do is be solid and reliable.

I have no doubt that I will be able to flog the hell out of this setup and have no problems. That's all that matters. When you look into the past racers didn't have summit racing, IMM, shady dell, hughes or anything in fact.

They had factory parts and if the factory didnt make it, YOU made it.

I hope the info is useful. I know from when I was trying to research on these rockers that there was NOTHING on the web about them, so I am assuming people will run into this issue. Hopefully they use the info.

Whenever you're building an engine where factory dimensions and parameters are altered, this is the resulting can of worms you open.
You just have to make the appropriate adjustments is all...

 

[needsaresto]

Hey pos I appreciate the old school thinking. There's MANY times I find myself getting aggravated over prices in the hi perf and mopar world. Thats when I break out the tools and whats left of my brain,lol!


Good job!