Cheap Ebay roller rockers. Too good to be true?

-
a12 said:
Its all fun and games till one of them grenades and sends shavings through through the engine :steering:
Click to expand...
Needle rollers sucked up in the oil pump will ruin your day! Get what you pay for with valve train parts. These could cost you $$$$ when they fail!
 
The best brand name deals, sometimes steals, I've found on oibay are when I search extensively, using various combinations of descriptions, which sometimes gets more results than the typical search entry and they usually are ones where the seller lists it halfassed or in general, not well versed in creating listings or car stuff. That cheap stuff used to be listed and ship directly from Shagshwahigi, China or some other hellhole, who the hell would order from there on top of it being junk, now the listings show from California, same junk. Saw this with motorcycle go fast goodies like rotors, levers, pegs, shifters etc. Fancy looking cheeze metal in trick colors. Now they are making engine internals? Pass! LOL
 
Last edited:
dartfreak75 said:
Im a huge ebay fan im always browsing and shopping for deals. Part of it is im poor and cant afford to pay new prices for everything so I typically try to buy stuff used for cheaper. And the other part is I enjoy the thrill of the bidding lol. Anyways while browsing 360 parts i came across these roller rockers. Now rollers wasnt part of the plan but this price seems to be too good to be true. They are aluminum adjustable roller rockers with shafts and pedestals. They are 1.6 rockers. Do you thing that they are just junk that will never last or is someone finally throwing us mopar guys a bone by offering affordable parts? Here is the link tell me what you think.
Mopar Chrysler SB 318 340 360 1.6 Ratio Aluminum Roller Rocker Arms & Shafts | eBay
Click to expand...
if you have to ask... then there's your answer
 
318willrun said:
We cannot get away from china these days. but this isn't so much about "china" as it is the poor quality of product you are being offered - all for you 127.99 :D

I did put a set of Harland Sharps on my '01 Ram - just to do it. So far, excellent quality
Click to expand...
its not that ALL products comign out of China have quality problems. its the proven fact that China's quality control standards are essentially non-existent so its a crap shoot as to whether the item with last or not. Quality control is literally not part of their business models in their culture. Why? because the labor is so cheap, they can roll off more and it becomes an odds problem at that point.
 
dukeboy_318 said:
its not that ALL products comign out of China have quality problems. its the proven fact that China's quality control standards are essentially non-existent so its a crap shoot as to whether the item with last or not. Quality control is literally not part of their business models in their culture. Why? because the labor is so cheap, they can roll off more and it becomes an odds problem at that point.
Click to expand...
Exactly! The brand name products that are made in China are usually better quality. There's a little more quality control on our end. Some things do slip through the cracks. I looked through 5 sets of console plates at 3 vendors at the Nats a few years ago. All were made in China from the same factory. They all had the same blob of metal in the same place. I hope by not buying them the suppliers got ahold of the maker and the problem got fixed.
 
I got one set super cheap..... they push the valve spring .roller was of set and the rivets that hold them ...
I send them back.

I install the PRW STEEL ONE on a friend 340, they fit and finish is way ahead of the aluminium one. I read some good review on them


save your money , at least the steel one or a good set of 273 adjustable rockers.
 
They should only be used with induction hardened shafts. They should only be used for maybe a season of drag racing then thrown in the trash. Even when you use them with the correct induction hardened thick wall shafts, the inner race of the rocker arm itself wears.

As one review said...
"finally some cheap chevy type race parts for our mopars"...
Correct, They are exactly like cheapo **** chevy parts.

I've ran them, I know 1st hand.
They need checked every month of street driving and chucked every year/season.

If you want to safely play with these, have them bushed instead... and now you have almost enough into them to have just bought good rocker arms.
 
i think they are bushed and not roller bearing on the shaft...Actually bought a set for 10 dollars.... since they we new with shafts and hold downs....
still looking for the 10 dollar engine to throw them on...

If it was not so cold out I would go take a picture....but they are couple of miles away...
 
Last edited:
never liked needle bearings on shaft rockers . unless your moving lots of oil through the rockers . the needle make grooved in the shafts . i'd go bushed rockers on a shaft before needles . a needle bearing has so little contact area , the pounds per square inch load is very high , take that needle out replace it with a bronze bushing , load goes way down and no shaft wear to speak of . oh ya were does all that worn matl go , to your oil filter , after it gets collected in the pan up the tube through the oil pump , all that fine metal dust . no needles for my street ride , just bushed rockers .
 
dusted said:
Someone buy me a set and I will throw on the 318 truck and post the results.:steering:
Click to expand...
I agree with this! Lol I wish I had money to waste on trials and R&D! There is alot of stuff out there id love to just try out but I just simply can't afford to repair the damage they may cause. Lol
 
toolmanmike said:
Do you need 1.6 ratio? Cheap is exactly that: cheap! A $100 set of used 273 rockers would do you better. You would need different pushrods though. How about the aluminums? Do they require different pushrods as well?
Click to expand...
No not at all. Roller rockers never has been on my project list. I just saw these and remembered harland sharp rollers going for 800+ back in the day and thought wow what a deal. I just wanted to see if anyone here has ever tried them. I guess from the responses everyone kinda feels the same. Cheap is not good inside of your engine. Lol
 
MOPAROFFICIAL said:
If you want to safely play with these, have them bushed instead... and now you have almost enough into them to have just bought good rocker arms.
Click to expand...
Dang MO... you just got me inspired about how to make use of the PQ rockers I have.... thnx! (Gonna try it here.... nothing ventured, nothing gained, and nothing to lose at this point; I won't dump them on someone else.)

Any idea on an appropriate bronze to use?
 
Bushed.....anything with a larger then stock spring/retainer they would need to be cleared ........

20181228_164051_resized.jpg


20181228_164107_resized.jpg
 
That is encouraging. Any idea what that bushing material is 70AAR? Certainly not a bronze.....
 
nm9stheham said:
Dang MO... you just got me inspired about how to make use of the PQ rockers I have.... thnx! (Gonna try it here.... nothing ventured, nothing gained, and nothing to lose at this point; I won't dump them on someone else.)

Any idea on an appropriate bronze to use?
Click to expand...

I'll have to check my book on that...I've written it down somewhere.
Those induction hardened shafts are pretty badass though however, I got mine from Dan Dvorak. With needle bearing style rockers the oil holes are a little different as in there's an extra one... I'm actually using them with my comp rockers now. Slightly snugger fit, indestructible. Look like 3/8 wall!
 
Dont have a clue what they used for bushing...but i am sure some one with x ray eyes will tell us....after all...they could tell me about my cnc heads looking at pictures...LOL


Stellite?
 
Last edited:
70aarcuda said:
Dont have a clue what they used for bushing...but i am sure some one with x ray eyes will tell us....after all...they could tell me about my cnc heads looking at pictures...LOL


Stellite?
Click to expand...
Speaking of, have you gotten a moment to have one of those heads flow tested?
 
MOPAROFFICIAL said:
Speaking of, have you gotten a moment to have one of those heads flow tested?
Click to expand...

Had a change of mind .....I took both heads in and told them to do a valve job and check them out....They will also flow one set of ports on the heads....will not be done for another week or so due to only working 3 days this week and next week....Dont worry...I will post the results regardless of what the numbers are...
 
nm9stheham said:
That is encouraging. Any idea what that bushing material is 70AAR? Certainly not a bronze.....
Click to expand...
It seems to me they would be made of bronze or brass or something soft like that. I dont know but that just seems like it would make sense.
 
dartfreak75 said:
It seems to me they would be made of bronze or brass or something soft like that. I dont know but that just seems like it would make sense.
Click to expand...
Yes, bronze is normal. Thick aluminum could be used too. But the bushings there don't look like bronze.

MOPAROFFICIAL said:
I'll have to check my book on that...I've written it down somewhere.
Those induction hardened shafts are pretty badass though however, I got mine from Dan Dvorak. With needle bearing style rockers the oil holes are a little different as in there's an extra one... I'm actually using them with my comp rockers now. Slightly snugger fit, indestructible. Look like 3/8 wall!
Click to expand...
Thanks very much; let me know if you can find the time to check; don't want to waste your time. I'll probably go with C932 for now; the rocker bushing loads look to be something like 10-20% of the loads on a piston pin bushing even with springs up in the 400-500 lb open range. C932 can be bought in the correct sized bushings that I can slice into the right lengths, already comes a few thousandths oversize for the holes in these rockers, and is a close fit on the inside. The present needle bearing assemblies are a standard, 1.125" OD x .875" ID x .375" long. so once I get one apart, it looks to be a snap to do with no machining. And, interestingly, C932 is listed as being used for an LS rocker retrofit of needle bearings: Summit Racing® LS Series Retrofit Trunnion Kits SUM-141560

And those shafts sound like the ones that came with a set of Hughes rockers! Soooper thick-walled.

70aarcuda said:
Dont have a clue what they used for bushing...but i am sure some one with x ray eyes will tell us....after all...they could tell me about my cnc heads looking at pictures...LOL
Stellite?
Click to expand...
LOL... Hmmmm... stellite is new to me. Looking on the web, the color is similar and there are a lot of stellite 6 tubes and bushings for sale from China.
 
You must log in or register to reply here.
-

Back
Top