They're always great company! I have many friends that run their kits competitively .
Do you have an item number for the stainless arms, I’m not aware that Comp Cams makes stainless arms for Mopar.I like the stainless arms from Comp Cams
Comp Cams 1621-16 Ultra Pro Magnum Shaft Mount Rocker Arms Chrysler; 1.5 RatioDo you have an item number for the stainless arms, I’m not aware that Comp Cams makes stainless arms for Mopar.
Ok thanks, I wasn’t sure if you were talking about those, my buddy has them, with no problems at all.Comp Cams 1621-16 Ultra Pro Magnum Shaft Mount Rocker Arms Chrysler; 1.5 Ratio
Actually they are Chrome Moly... My mistake..
I know a couple guys running them with .620+ lift & no issues...Ok thanks, I wasn’t sure if you were talking about those, my buddy has them, with no problems at all.
Personally, I don't care if they are or aren't .. I run HS's on their hard chrome shafts. BUT, if I was going to use 440Source's roller rockers I'd sure as hell be asking them the question !!
Okay,Looks like Dan has picked up on the fact we are just trying to help.. I'm not a 440 Source hater, I've spent a fair amount of money with them.. But some of their products have known issues...

Glad you got help. That, in turn, helps me.Okay,
Just placed my engine package order with 440. After talking with Mike, who was very helpful and knowledgeable, he did not recommend using their aluminum shaft bearing rocker set that was included in the engine package. So for the record,
View attachment 1995537
So I went with their stainless steel roller tip shaft bushing set. He said they are made by the same people who make them for PRW.
View attachment 1995538View attachment 1995539View attachment 1995540View attachment 1995541View attachment 1995542
OBE but,Harland Sharps normally come with shafts. There’s two geometry versions of Harland Sharp rockers, one version works with iron heads, the other works with Eddy/stealth/Trick flow heads as these style heads will require a lot of screwing around to get the geometry right unless you specifically get rockers designed for these heads. I’m not aware of any other rocker brands that build the correct Eddy/TF/Stealth geometry into their rockers.I use HS rockers. My only complaint is they bleed a lot of oil. They also require hard-chrome shafts. I personally would not use any rocker that is not bronze bushed - I don't like aluminum or iron as the contact surface.
The heads you use will be a determining factor also !!
I have "Stealth" heads. If I'm not mistaken, they have the exact same dimensions as factory heads, even on the rocker shaft pedestals.OBE but,Harland Sharps normally come with shafts. There’s two geometry versions of Harland Sharp rockers, one version works with iron heads, the other works with Eddy/stealth/Trick flow heads as these style heads will require a lot of screwing around to get the geometry right unless you specifically get rockers designed for these heads. I’m not aware of any other rocker brands that build the correct Eddy/TF/Stealth geometry into their rockers.
I see this set from Harlan Sharpe but the set is for aftermarket heads.OBE but,Harland Sharps normally come with shafts. There’s two geometry versions of Harland Sharp rockers, one version works with iron heads, the other works with Eddy/stealth/Trick flow heads as these style heads will require a lot of screwing around to get the geometry right unless you specifically get rockers designed for these heads. I’m not aware of any other rocker brands that build the correct Eddy/TF/Stealth geometry into their rockers.
Those do look like a good product for certain! What’s up with the hold down bolts with a screw inside of them?Okay,
Just placed my engine package order with 440. After talking with Mike, who was very helpful and knowledgeable, he did not recommend using their aluminum shaft bearing rocker set that was included in the engine package. So for the record,
View attachment 1995537
So I went with their stainless steel roller tip shaft bushing set. He said they are made by the same people who make them for PRW.
View attachment 1995538View attachment 1995539View attachment 1995540View attachment 1995541View attachment 1995542
It's a stud/nut arraignment and the studs have a slot to make installation easier..Those do look like a good product for certain! What’s up with the hold down bolts with a screw inside of them?
They are hold down studs with a nut on them. Highly recommended to get the right length ones for your heads.Those do look like a good product for certain! What’s up with the hold down bolts with a screw inside of them?
Yeah, kinda odd the one stud appears to be to short... You'd think for a marketing photo they would get things right...They are hold down studs with a nut on them. Highly recommended to get the right length ones for your heads.
That, and do they go all the way down in heads.. with a roller and aluminum heads they can have a tendency to rip the threads out. Hughes addresses that in some of their packages. They drill and tap further.Yeah, kinda odd the one stud appears to be to short... You'd think for a marketing photo they would get things right...
With a roller cam, due to high spring pressure! Edelbrock uses helicoils, others do not?That, and do they go all the way down in heads.. with a roller and aluminum heads they can have a tendency to rip the threads out. Hughes addresses that in some of their packages. They drill and tap further.
Have to agree. I abused a set of Isky rockers like these from Mancini for years on a 440 nitrous motor. Zero issues.These should more than do the job. No need for roller tip.
MRE - B/RB Ductile Iron Rocker Arm Set
Doug
I know people have used this type with no issues I’ve ever heard of, good price too. Are they bushed? And with a cam under .600 valve lift, is a roller tip really making more HP? I think the original type ones weren’t bushed, with no problemsHave to agree. I abused a set of Isky rockers like these from Mancini for years on a 440 nitrous motor. Zero issues.
The stealth pedestals are offset just like edelbrock heads. Pic of “E” style sharps in my stealth heads. I tried isky and crane irons, S70016K Harland’s, and PRW stainless rollers. Nothing gave a good contact pattern except the “E” style Harland’s: S70016KE.I have "Stealth" heads. If I'm not mistaken, they have the exact same dimensions as factory heads, even on the rocker shaft pedestals.