A stock street Hemi with how many miles ?

You took me backwards there. I'm saying I wouldn't put one together without roller rockers. Partly because I think they have to be 10 times better on the guides. And of course I think roller rockers are pretty.

Most that I have torn down had 20, 30 or 40,000 miles. They were worn out. People used to drive these cars. 4:10 Dana and 70 mph speed limit. Those were the good ol days.

Anyone with experience on Rocker Arms Unlimited - Used to be Rocker Arm Specialist and previously Rocker Arm of Torrance. Their roller rocker (PL-426). Visited their shop in nor cal in the 90's, They (back then) also offered correcting head geometry in shop.

Barton's have separate pedestals allowing you to adjust the geometry of each valve separately.
The original pedestals can be shimmed up or machined down to adjust geo, but the change affects both intake and exhaust valve sides simultaneously.

These day just like in the old days spring pressure is not your friend they get real high with a big MM hemi Cam shaft at an inch lift. This were RB. set up is nice and you can also get to a spring if you break one with the head on the motor in the car quite easy The 426 Hemi in my Challenger ran the stock rockers but back in the early 70s you did not had much of a choice. One rocker never broke it just was not the weak link yet back then.

And we’re turned 8500 then too.

Hemi's are hard on guides...on the intake side. The short sweep/radius of the intake rocker arms side load the guide quite a bit. The exhaust not so much as they are quite long (flatter arc) The biggest issue with stock rockers is they all need to be ground to correct true up the ratio. In blown application you used to see Roller rockers on the intake side and non rollers (Kluff rockers) on the exhaust. Also time spent on centering the contact patch of the rocker to valve stem will greatly reduce guide wear. I have gone as far as re-positioning rocker stands to correct this.

True, the short valve-side rocker arm lever, combined with high lift, has a large side-thrust vector at both ends of the curve.
Typically the size of the vector isn't related to the rocker arm ratio, since ratio changes are generally done by adjusting the cam-side lever length.
As the valve-side lever gets longer (392 and 426 exhausts) more of the motion is nearly vertical. An engine I'm researching has a 2.03" long rocker lever and .350" lift, a ratio of 5.8:1. By comparison, a 1.65" lever at .700" lift is 2.4:1.

Go with Bartons. Best bet in the long run. Take mine to 7900, plenty of street miles since 2007-ish.

Those look a lot like the BAE #8 rockers

That looks great. Barton’s is going to be it
Thanks

Those blue ones are beautiful, mine were red and I liked them too. Sometimes I see them natural or maybe silver. The reason I mention this is because I want you to ask what color they are going to be when you order them. I don't want you to think they are going to be beautiful blue and then get them and don't like the color. Ask when you order. You need to be happy.

I believe all of Barton's newer current rocker arm sets are natural. They quit anodizing them in colors. Probably for a cost save. Not like they aren't making a fortune off of each set already.

No, they are Barton's.

The rockers are the same with spray bars that are on my friends RB built hemi 572 CI. Was close to the first one Barton built back in 1999 and yes been rebuilt a few times and still runs 8.90s without reving the motor. Myself I like those rockers on a race cars and even a street cars. I would check them every Winter or specific period of time and make sure the oiling is super clean but we do that with this motor and have never had a problem with them. It is nice to be able to access the Valve spring without sliding the shaft out. Back in the old days whey my Challengers motor in early 70s had a shift point of 9000 an 10000 through the traps this system would of been so nice to have instead of the long shaft system. Push a 426 to those RPMs was just normal in those days and you cam up with some broken V Springs.

OH sorry Rick..I was gonna say .

Does anyone know why RB did not use an offset exhaust rocker (as are his intakes and both factory intake and exhaust rockers)?
Examine the (HT: 6PKRTSE: great, thanks) picture of the blue RB set. The intake shafts are parallel to each other and the crank axis, and 90° to the valve stem axis. Since the valve stems are only canted in one axis (cross plane, 90° to the crankshaft), the rotational path of the rocker's tip is in the same plane as the stem
The exhaust shafts are skewed at a shallow angle (appears to be 22.5°) to attain alignment with the exhaust stem tips. When the rocker oscillates, it does not push the valve straight down, but at 90° to the shaft axis, and the roller scrubs sideways on the valve stem tip.

Ideas?

It would be in the spark plug hole