My dislike for them comes from a racing stand point, I work and operate in the high horsepower high rpm world. My biggest dislike with them is that it's not always a constant quality with there product. But in your situation I wouldn't have any problem running them. I don't the specifics of what he's looking at build wise that's why I recommended going the better route. Each has it's own place. Now with that being said I don't have experience with their stud mount rockers, I've only delt with their shaft mount systems for SBC and SBF. I do like that they are a shiny chrome though hehehehe


And I agree with you 100% on the Scat issue, their quality sucked for a while but they got that squared away and have a darn good product. But your going to have quality control issues with any business be it domestic or import. Now I do try to support American as much as possible when it comes to buying parts or anything in general.

People don't realize the quality standards have came up with over seas stuff significantly. With as much products they were making and all the R&D they got caught up on a lot of stuff. RHS uses over seas casting for their heads but look who owns them Comp Cams. And when has Comp ever been know for poopy products?

 

I actually contacted PRW to see what their process was. I was hoping that they may forge or cast overseas then bring it home to finish. I'll post the letter I got back and you can decide.
Then after it I'll post an answer from the Scat ceo on another forum so you can see the difference in the answers.
I think it's pretty interesting. Earlier we were talking about what the government has to do with it and Tom Lieb (Scat) touched on it a bit.
First PRW

Hello Marc,

Our products are designed and developed in the USA. We have production facilities throughout the world. Our rocker arms are not forged; these parts are either investment cast alloy steel or machined from aluminum alloy extrusions.

As with our other parts, rocker arms are manufactured, inspected, finished, inspected again and packaged at our factories. All goods go through a final QC check in the USA before being shipped to our distributors and, ultimately, the end user. Thanks for your interest and support of PRW products.

Regards,
Bill McGloghlon
Product Manager
BillMcG@PRWnetwork.com
951-436-7900 Ext 205
951-928-8555 FAX

Now Scat

From Tom Lieb CEO of SCAT Enterprises, INC.

First I would like to answer the questions poised on the forum. Second I would like to clear up the confusion generated by some of the members. Last, I would like to thank all those who participation on the forum for heir kind words.

I am an old car guy. Presently my collection has 22 cars including a Model T. My cars go from early brass to 30’s classics. I have won Pebble Beach Vintage Class 3 different times with one of my 7 Wills St. Claires. I started making crankshafts in 1966 and connecting rods in 1972. Presently we manufacture 100 to 120 cranks a day and an average of 1000 connecting rods a day. We supply the big three with cranks and rods for prototyping as well as their crate motor programs, our O.C. system etc, falls under their guide lines. Our cranks and rods have won over the years every race venue including Indy and Daytona 500.

MG cranks were mentioned on the forum. Scat has manufactured 1000’s of these exclusively for Moss Motors since 1972 in Goleta, CA. They are forged in England on the original dies out of 4340 Chromemoly steel from British Steel. They are machined and Heat treated at our Redondo Beach facility in California.

Many years ago steel mills and forging houses started to close for obvious political, union and environmental reasons. Today there are no steel mills or forging houses left in the USA. That produced the alloys or is capable of forging crankshafts.

The Scat Model T cranks are forged in China in the same factory where Scat forged cranks for FORD, GM and Chrysler. This is under the same strict quality control standards. They are machined, balanced and heat treated in our Redondo Beach, Ca facility. I have included some pictures to show just a few of our 30 something CNC machines and one of our 12 crank grinders working on the Model T cranks. They are made of 4340 Chromemoly steel forging.

If you are ever in the L.A. area you are more than welcome to come by and visit. I will personally give you a tour of the shop and car collection. I can be reached at tlieb@scatenterprises.com or (310) 370-5501 ext. 112 if you have any questions.

Thanks,

Tom Lieb

To me it just seems like Scat has a better hold of their process. That is purely conjecture.
Hope this helps all you guys going through the same BS as me trying to get good reasonably priced parts.

 

Roger that

 

Those PRW rockers look like the geometry might be more like BBC orientation, not FE. Could be dead wrong though. That would make up my mind right there if the geometry was compromised. Other than that they look fine to me, but The steel/aluminum battle I have went through as well. Steel probably will last longer and take more abuse; but remember this, how many miles are you going to drive it in the next 5 years? Do you really plan on driving far enough to wear out a set of aluminums? Futhermore, I have seen very few ford engines with correct valvetrain geometry, so the rockers used are way less significant, especially when the geometry is off and the rocker can't even do it's job.

When I built my 545, I spent more time getting the valve train set up than anything else, It is so amazing how much changes by a simple pushrod length difference of 0.050". Most people don't do the valve train geometry just bolt it together and if it fits and runs quietly it was a success, and that is fine. Those are the guys that I beat out of the trophies and award money at the local events.

And BTW, My trophies are won by the use of Aluminum rocker arms made in a little shop in Ohio, and their specialty is FE rockers, Mine were bought used, no telling how old or how many miles, and they are fine and well used, been ran competitively all over the US, and probably going to outlive my engine too.

Look them up, Dove manufacturing. Give them a call, they will sure help you to set up your proper valve train geometry.

 

Thanks
Well aware of Dove.
And am doubly aware of valve train geometry being paramount.
Putting together a 428 for my Fairlane also and Dove will figure into the equation.
We just kinda got onto the PRW thing for all the previously stated reasons.
I think we're all just trying to cut through the BS.
There are obviously some great US companies (nobody has mentioned Jesel yet).
Really enjoying the banter guys.
Hope OP is also.

 

I cant find scorpion ones that fit a FE. But as for Harland sharps, will the ones that fit the stock 390 heads fir the edelbrock heads? And for the 445, do I need the full roller rocker or just the ones with the roller tip?

 

Here's a thread that will give you a good visual and answer your Edelbrock question.
You don't need the full roller set up. jmo
332-428 Ford FE Engine Forum: Harland Sharp/POP/Edelbrock Rocker Arm Setup

 

That's a great article! Now can I use precision oil pump shafts with harland rocker arms?

Edit: would these be the ones I want to go with?
http://www.summitracing.com/parts/cs...view/make/ford

 

gotta love all the asia/india hate.
having dabbled in an overseas manufacturing industry (and being thats where most of my friends have ended up working as well), it is 50% in the domestic companies vendor management skills and 50% in the domestic companies quality control of incoming shipments. if you know how to manage the vendors, and have a good QC department you're doing pretty good.
between taxes, cost of living, raw materials costs and the other various political crap domestic companies have to deal with, its no wonder you can make it cheaper overseas.
americans WILL NOT even get out of bed for the wages those people gladly accept.
your air quality is far superior to the air they breathe.
most americans would not even step in the water they drink.
their governments are more concerned with bribes and kickbacks than they are with the welfare of the common american sloth (ie probably not people spending money on modifying engines for 40 year old trucks, so no one get too offended by that. you know who i really mean)
the tax consequences of holding even raw material in inventory domestically are staggering as well.

of course, i buy american whenever i can as well, but simple fact is, the worlds now small enough that it really doesn't matter where its made, just where the profits get plowed back into (ie domestic based companies using 3rd party vendors to manufacture overseas). which is really all that matters anyway.

i would almost quarantee that all things being equal (quality of materials, incoming QC, design etc) you wouldn't be able to tell the domestic from the import if there were a mix in the same box.

and, i'm a sucker for truck ****, so i would probably buy the harland sharp, for the simple fact they took the time to put color on it and make it as badass as possible. which used to be the american way, and thankfully, still is for some.

 

Those are full roller.
I've never used a full roller set.
Why don't you get on H&Ss site and drop them an email.
They know a hell of a lot more about their stuff than us.
Their site is pretty nice.

 

Thats pretty much where we are going here.
Just trying to cut through all the crap and find out who really has their s--- together.
I think we all agree that we'd rather buy American but the world has dictated that we can't all the time.
So just trying to get reasonable feedback to make informed decisions.
But I agree with you those H&Ss are freakin gorgeous.

 

Well if we're mentioning Jesel, then how 'bout T&D for the OP? Ricky Bobby wants to go fast!!! haha

 

Thought I'd bump this thread up and let you guys know what I'm doing with my set of PRW rockers.
I've installed a set of Manton adjusters instead of ARPs.
Manton is a local company with a great rep.
http://www.mantonpushrods.com
Also got a set of their push rods.
Had to take a little meat off the back of the rocker to clear the girth of the set up.
So the upshot is I'm spending money anyway but I still have steel rockers which I wanted. And the system is heading toward bulletproof (fingers crossed).
I'll let you know the good and the bad with this rocker set up.