has anybody ever used these ebay rockers.
has anybody ever used these ebay rockers. I was on ebay today and saw thesehttp://www.ebay.com/itm/LS1-LS2-PREMIUM-GOLD-1-75-RATIO-ROLLER-ROCKER-ARMS-/290579092491?pt=Motors_Car_Truck_Parts_Accessories &vxp=mtr&hash=item43a7dd140b I was wanting to do do a trunion upgrade but came across these and it got me thinking if not I may have to be a guinea pig unless some has had bad experience with these.
well you know you are setting yourself up for the blanket statement - "everything on ebay is junk", and "you get what you pay for". anyway they sure look nice. i wish there was an "ebay lid" cause i need one and i'm cheap.
I would never trust them, but then again after all the problems ive read with the yella terras breaking in half and the harlans spitting bearing everywhere...what the hell I guess your taking a chance any way you go. But it is hard to beat the people that work at YT etc since ive yetbto see where they havent replaced a product due to defect.
everything on ebay isnt junk. you just need to know what to buy. i bought alot of things off ebay and i like all of them but i knew what i was buying. im not saying everything is good but its not all junk.
Joined: Aug 2007
Posts: 24,241
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From: Turnin' Wrenches Infractions: 005
I am very weary of cast aluminum rocker arms. And the fact that they colored them to look like HS doesn't sit well with me either. You will find with enough research that there are lots of documented failures of cheaply cast roller rockers floating around this very site.
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Not only that, but the reason they are so cheap is because they are knock off's. Comp and other companies have a lot of r and d in their products, that is what you pay for. The cost to actually produce comp's products is pennies on the multiple dollars you pay for them.
I'm willing to bet the farm that we pay 300 percent for comp's rockers what it cost them to produce them.
I'm willing to bet the farm that we pay 300 percent for comp's rockers what it cost them to produce them.
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Not only that, but the reason they are so cheap is because they are knock off's. Comp and other companies have a lot of r and d in their products, that is what you pay for. The cost to actually produce comp's products is pennies on the multiple dollars you pay for them.
I'm willing to bet the farm that we pay 300 percent for comp's rockers what it cost them to produce them.
I'm willing to bet the farm that we pay 300 percent for comp's rockers what it cost them to produce them.
I'm pretty sure it's more than that.
Same **** goes with ALL companies. Look at the FAST intake (molded plastic), superchargers (a housing, some bearings and an impeller or paddles/screws), headers (bent tubes).....damn near everything.
Now don't get me wrong, I know there is R&D involved in making all this stuff and some better quality materials and such, but even so, most prices are obscenely marked up.
Totally agree...I still wouldn't cheap out on rocker arms tho...
Maybe one of these days when I'm rich...I'll build an engine using as many ebay parts as I can and see how long it lasts...
I'm talking a reman block, reman heads, off brand crank, rods, rockers, crank, pistons...etc. hell ill even throw in an ebay tune. Lol.
Maybe one of these days when I'm rich...I'll build an engine using as many ebay parts as I can and see how long it lasts...
I'm talking a reman block, reman heads, off brand crank, rods, rockers, crank, pistons...etc. hell ill even throw in an ebay tune. Lol.
I read about a lot of rocker arm failures on small block chevy motors, and they're almost always cheap cast rockers. On those motors, a big cam has .550 lift. On LS motors, we're all running .600 and up on aggressive lobes. No way I'd run an unproven rocker on one of these motors.
TECH Addict
Joined: Sep 2009
Posts: 2,481
Likes: 5
From: PA/MD
The bolts WILL break, the pedestals are built wrong and no matter what grade bolt you put in there the bolt WILL BREAK......do not get them.....ask me how I know....after doing LOTS of grinding to get them to clear my tall valve covers and heads the bolts kept breaking.....mine are now probably now a door on a Honda... I threw them in the metal bin
Cool thanks, ya'll scared me enough just to get the comp cams trunion upgrade thanks for all the advice given. One day I'd like to build an all summit parts sbc the see how well that comes out. Once again fellas thanks.
Those look like Pro-Comp equivalents. I have customers coming in looking for that type of pricing all the time for SBC/BBC stuff and the smart ones believe me when I urge them into Scorpions; Others go for the cheap ones and snap them.
TECH Addict
Joined: Sep 2009
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From: PA/MD
I tried them with the bolts that came with the set...snapped a few. I tried them with graded bolts....snapped a few. And I am talking in a day or two of normal driving. The bolts always snapped right at the bottom of the rocker where it meets the pedestal....they might work if bored out to take a bigger 3/8" graded bolt, but I wasn't going to put that much work into something I had no faith in....the rockets themselves looked like pretty nice pieces, but like said I had to do so much grinding it was rediculious.
Ebay garbage is cheap for a reason. Most of it is cheap metals made in China and blown out on ebay at prices the kids building a $10K engine on a $1K budget love.
Fact is, just cause 1 person out of 10,000 gets way with running ebay rods/rockers/headers/whatever without failure doesn't account for the thousands that get screwed buying that crap. I rebuilt 2 motors last year because of those re-grind cams falling apart, and replaced one set of Ebay headers because they split at the flange where it bolts to the head. This is just stuff that's rolled off the street. I'd personally NEVER use any of that garbage, not even in my own cars.
This statement isn't blanket, it's fact. When building an engine, you get what you pay for. Period.
Fixed that for ya.
Ebay garbage is cheap for a reason. Most of it is cheap metals made in China and blown out on ebay at prices the kids building a $10K engine on a $1K budget love.
Fact is, just cause 1 person out of 10,000 gets way with running ebay rods/rockers/headers/whatever without failure doesn't account for the thousands that get screwed buying that crap. I rebuilt 2 motors last year because of those re-grind cams falling apart, and replaced one set of Ebay headers because they split at the flange where it bolts to the head. This is just stuff that's rolled off the street. I'd personally NEVER use any of that garbage, not even in my own cars.
This statement isn't blanket, it's fact. When building an engine, you get what you pay for. Period.
Ebay garbage is cheap for a reason. Most of it is cheap metals made in China and blown out on ebay at prices the kids building a $10K engine on a $1K budget love.
Fact is, just cause 1 person out of 10,000 gets way with running ebay rods/rockers/headers/whatever without failure doesn't account for the thousands that get screwed buying that crap. I rebuilt 2 motors last year because of those re-grind cams falling apart, and replaced one set of Ebay headers because they split at the flange where it bolts to the head. This is just stuff that's rolled off the street. I'd personally NEVER use any of that garbage, not even in my own cars.
This statement isn't blanket, it's fact. When building an engine, you get what you pay for. Period.
I wish everyone understood that. 
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Joined: May 2026
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So stupid Anybody who really thinks this is really f'n stupid. They literally sell every brand(best to worst)on eBay not just cheap crap.