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Re: roller rockers on a stroker.
Posted: March 17th, 2008, 1:07 pm
by Cheromaniac
fedrusion wrote:Are the harland sharp the only rockers that fit under the stock valve cover? or do the crower's fit also.
If I read the modifications for the harland's you need to mill off .400 from the head where the rocker mounts to make them fit, does this cause any problems with valve train geometry?
I expect you'd need shorter pushrods but I can't be sure of that. The problems become more complex when you deviate further away from stock engine specs, and that's why I chose the Yella Terras; to keep things simple and avoid valvetrain geometry issues.
Re: roller rockers on a stroker.
Posted: March 19th, 2010, 10:19 am
by --jeep--
DIno do you recommend getting the 1.6 ratio or the 1.7 ratio yella roller rockers. I have the mopar stage 1 performance camshaft in my stroker right now.
Re: roller rockers on a stroker.
Posted: March 19th, 2010, 5:39 pm
by dwg86
fedrusion wrote:Are the harland sharp the only rockers that fit under the stock valve cover? or do the crower's fit also.
If I read the modifications for the harland's you need to mill off .400 from the head where the rocker mounts to make them fit, does this cause any problems with valve train geometry?
I used crower roller rockers, and they fit under the stock valve cover. I wouldn't remove .400 from the rocker bosses. Check with your machinist. I removed .400 from my rocker bosses. I had plenty of clearance, so I probably got away with .150-.250. With removing .400 it doesn't leave much thread engagement on the adjusting nuts.
Re: roller rockers on a stroker.
Posted: March 21st, 2010, 12:09 pm
by Cheromaniac
--jeep-- wrote:DIno do you recommend getting the 1.6 ratio or the 1.7 ratio yella roller rockers. I have the mopar stage 1 performance camshaft in my stroker right now.
If it's the cam with 240 degrees advertised duration and 0.43" lift, that's so mild that I wouldn't even bother going higher than 1.6's.
Re: roller rockers on a stroker.
Posted: March 23rd, 2010, 7:02 pm
by --jeep--
how much lift can the factory valve springs handle?
Re: roller rockers on a stroker.
Posted: March 24th, 2010, 12:22 pm
by Cheromaniac
--jeep-- wrote:how much lift can the factory valve springs handle?
0.43"
Re: roller rockers on a stroker.
Posted: May 26th, 2010, 11:22 am
by seanyb505
Cheromaniac wrote:
If it's the cam with 240 degrees advertised duration and 0.43" lift, that's so mild that I wouldn't even bother going higher than 1.6's.
Not sure I understand this statement completely. If its a mild cam wouldnt the 1:7 units give it more lift? Im thinking of ways to justify the yella terras, but not if its only to get rid of a small tick. Thats what the stereo is for.

Re: roller rockers on a stroker.
Posted: May 26th, 2010, 12:35 pm
by lafrad
A Mild cam will respond to the 1.7RR BETTER than an aggressive cam. The softer ramp angle and lower peak lift will allow for longer cam life and quieter operation.
Thing is, with a stock-ish like cam, proper length push-rods on the STOCK rocker arms will be the quietest and most reliable setup you can run. ALSO, you don't have to mess with your valve cover...
Re: roller rockers on a stroker.
Posted: February 22nd, 2015, 10:32 am
by Frankenstien
HOW DID THE CROWER ROCKERS WORK OUT AND DO THEY CONNECT LIKE THE HARLAND SHARPS IN PAIRS?
Re: roller rockers on a stroker.
Posted: February 23rd, 2015, 12:56 am
by Cheromaniac
Frankenstien wrote:HOW DID THE CROWER ROCKERS WORK OUT AND DO THEY CONNECT LIKE THE HARLAND SHARPS IN PAIRS?
Do you still expect an answer 7 years on from the first post?

Have you just come out of hibernation Mr. Frank N. Stein?

Re: roller rockers on a stroker.
Posted: February 23rd, 2015, 6:21 am
by Frankenstien
well i was kinda hoping somebody has used the crowers arms and could have responded please? After 7 years would be a really good idea of wear and durability wouldn't you think?
So much for hoping i guess.
Thanks
Re: roller rockers on a stroker.
Posted: February 23rd, 2015, 8:14 am
by SilverXJ
http://www.jeepstrokers.com/forum/viewtopic.php?t=1004
His build thread shows pictures of the setup as well as the fact that they need guide plates. They are not linked like HS or YT rockers.