What adjustable rockers to buy at a reasonable cost?

-
joesnow

joesnow

Well-Known Member
Joined
Jan 9, 2005
Messages
618
Reaction score
37
Location
south eastern pa
Finishing my 440 engine up,
I need adjustable rockers, not sure what to buy?
Any good advice?

Thanks.

Street driven duster, track three times a year,
440 source heads
484 cam, 10.1 comp, headed, performer intake, 3k convert,
 
I would look for some good used Isky, Crane, Erson or Mopar ductile iron rockers. As for what you mean by "reasonable" I don't know, but you can usually get any of those three brands for around 300 give or take used, shafts and all. I was very fortunate that I have a close friend I hadn't seen in some time just drive up in the driveway one day late last year and GAVE me a pair of 906 heads, a 440 HP intake and a set of barely used Isky adjustable rockers simply because he was never going to use them. If I have any luck at all, I will.
 
Damn. I went and looked on fleabay and evidently prices have gone up! There are some on there but like 400 or more. Even still, I'll be DAMNED if I would buy some inferior aluminum chinkesium when I could get good used AMERICAN MADE ductile iron rockers.
 
RustyRatRod said:
Damn. I went and looked on fleabay and evidently prices have gone up! There are some on there but like 400 or more. Even still, I'll be DAMNED if I would buy some inferior aluminum chinkesium when I could get good used AMERICAN MADE ductile iron rockers.
Click to expand...
Amen to all that..
 
Buy the cheapest junk you can. Never spend $600-$1,000 for stuff you can trust.
 
.................I use the ductile iron 1s on builds with less than 600 lift on flat tappet cams.......so far not 1 problem.....kim........
 
If street and durability is an issue....ductile every time....
 
Food for thought, I bought a nice set of mopar ductile in a package deal, probably about $100 for the rockers. I'm about to send them out to Rocker Arms Unlimited (rockerarms.com) to have them bushed and their ratio adjusted to 1.6:1. They also will banana groove the shafts and check geometry for a total of $175. So hard to find 1.6:1 for less than $600, and I just don't feel I need rollers. So for under $300 it's possible to have a solid set of 1.6:1 for years to come.
 
Damn skippy. And Gary does some beautiful work too.
 
Mancini Racing has the best deal on rockers right now, imo, under their brand. Just over $400 & you get harland sharp bodies that are simply bushed instead of roller center. Perfect for your application.
 
Anybody have any experience with the Pro-Comp Electronics stainless
steel roller rocker set? About $230.00 complete (incl shipping) on Ebay
or from Jegs.

$_12.JPG
 
I dont have any experience with them. But that said, the way i look at it, there are 32 bearing assemblies between the 16 rockers, works out to about $6 per bearing, and thats if the rockers, shafts and hold downs are free. I've done a lot of skateboarding and semi-competitive cycling in my life and i would never consider $6 bearings... in a bicycle.

And that doesnt even mention one of the biggest issues with them - the cheap adjusters and lands.
 
Those pro comps may have the self aligning on either side of the roller. If they do, they are bad about unkeying the valves. That's not a good thing.
 
Old Man Mopar said:
Anybody have any experience with the Pro-Comp Electronics stainless
steel roller rocker set? About $230.00 complete (incl shipping) on Ebay
or from Jegs.

$_12.JPG
Click to expand...

I have to dis-assemble clean and correct problems with the T&D and Harland Sharp rocker assemblies I buy for $800-$1000.

You cannot believe the potential problems with this type of rocker assembly. Machining chips, thread quality, adjuster lock nut mating surface, the way the adjuster cup fits into the rocker body. They take hours and hours to prepare properly, but it can be done. Sometimes you have to get additional rockers because you can't fix them all. Get them right now from Jeg's for $169.99-$205.99 depending upon the ratio. Buy them all! Save the rest of the world!
 
I and a friend of mine have a set each of PRWstainless steel roller rockers from KMJ Performance,his being 1.5's and mine being 1.6's,ball and ball style pushrod application..no fulcrum bearings but bronze bushed,seem to be a pretty decent set-up I'd say comparable to comps pro comp stainless steels,I havent ran mine yet but he has run the crap outa his with the only issue being he broke an adjusting bolt which they promptly replaced free of charge,not just one they replaced his whole set of adjusters/nuts and since no probs,mine were bought at a later date and had already been upgraded to the better adjusters/nuts,another guy I know bought actual comp stainless steel rockers and compared them side by side to mine and absolutely could find no difference whatsoever...mine were almost $390 bucs at the time[now $426] his were over $550+....I always stay shy of the roller fulcrum bearing style just more parts that can fail and cause massive issues,ductile irons are very hard to beat,simple, bulletproof and they just flat out work with very few issues..I really wanted to run the stainless 1.6's but due to my combo and the lack of valve clearence with my pistons I will be running the isky irons 1.5's and probably sell the 1.6's but aint made up my mind yet, may save them for another build since I know they work good and they've had a good report thru KMJ...am sure there are knock offs that arent so good,always are...just have to be careful and research out what you buy and it's reviews...
 
ht413 said:
I dont have any experience with them. But that said, the way I look at it, there are
32 bearing assemblies.......
Click to expand...
Your first sentence says it all. These do not have any bearings, They are bushed.

RustyRatRod said:
Those pro comps may have the self aligning on either side of the roller. If they do,
they are bad about unkeying the valves. That's not a good thing.
Click to expand...
These rockers are not "self aligning". They come supplied with good quality shim packs.

I was looking for someone who had actual experience with these parts and it looks
like I still am.
 
Old Man Mopar said:
Your first sentence says it all. These do not have any bearings, They are bushed.


These rockers are not "self aligning". They come supplied with good quality shim packs.

I was looking for someone who had actual experience with these parts and it looks
like I still am.
Click to expand...

Lol, sorry, had my cheap a$$ Chinese rockers mixed up, thanks for clarifying.
 
If I wasn't dubious of them I wouldn't be asking the question. I would
however like to hear from someone with personal hands-on experience.
 
Old Man Mopar said:
If I wasn't dubious of them I wouldn't be asking the question. I would
however like to hear from someone with personal hands-on experience.
Click to expand...

I hear ya, and I know I'm still not answering your question, but I have been researching rockers myself and have come across probably 100 horror stories about cheap rockers from all makes. The thing I notice about them all is, unlike most other budget parts, Chinese stroker assemblies, procomp electronics, even distributors, there are almost NO positive reviews at all. That's the crazy thing right there.
 
i have heard good things about the PRW rockers and I see that MRL Performance is
using them on some of their builds.

PRWRollerRockers_zps471b3dec.jpg
 
Old Man Mopar said:
i have heard good things about the PRW rockers and I see that MRL Performance is
using them on some of their builds.

PRWRollerRockers_zps471b3dec.jpg
Click to expand...
Exactly my point,this is what I have and have seen work great....Kmj perf has pretty good reviews and strive to be customer orientated and research out their suppliers and screen out junksters,they actually test this stuff before they promote it or sell it to the public...I have many positive experiences with them and would reccomend them...
 
rbdart said:
Exactly my point,this is what I have and have seen work great....Kmj perf has pretty good reviews and strive to be customer orientated and research out their suppliers and screen out junksters,they actually test this stuff before they promote it or sell it to the public...I have many positive experiences with them and would reccomend them...
Click to expand...

I've heard good things about the PRW's as well, but not sure I'd compare them to those $230 rockers posted before. The PRW's are $300 more, and much of that will be presumably in machining, bearing quality and q.c. For that price, you're in Harlan Sharp and Mancini rockers territory and no longer talking about el-cheapo's.
 
You must log in or register to reply here.
-

Back
Top