Re: Crane rocker carnage pic. Need rocker recommendations
[Re: MR_P_BODY]
#1101191
10/25/11 12:25 PM
10/25/11 12:25 PM
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Joined: Jan 2009
Posts: 1,044 Victoria, Australia
Ian
super stock
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super stock
Joined: Jan 2009
Posts: 1,044
Victoria, Australia
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t&d.$$$, but worth it. stay safe, seeya.
thats all I run now... would be the last set of rockers you would buy
the best money i have spent ,t&d all the way
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Re: Crane rocker carnage pic. Need rocker recommendations
[Re: Ian]
#1101192
10/25/11 04:41 PM
10/25/11 04:41 PM
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Joined: Jan 2003
Posts: 1,611 westerly, ri. usa
440lebaron
top fuel
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top fuel
Joined: Jan 2003
Posts: 1,611
westerly, ri. usa
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Hello, t&d's will also break, .650 lift roller 600 lbs spring, have broken 3-4 in 250 runs, they do have a life cycle as t&d says. just broke 1 intake at lvd this past weekend. car has been sitting since may without backing off rockers??
gary
all parts are sold as is, all parts are considered used no warranties or returns paypal/check/money order, shipping is from zip 02891, buyer pays paypal fees 24% IRS 1099A plus 3% of part price, check/money order preferred site is not monitored 24/7 there might be a delay in response
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Re: Crane rocker carnage pic. Need rocker recommendations
[Re: Thumperdart]
#1101194
10/25/11 09:45 PM
10/25/11 09:45 PM
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Joined: Jan 2003
Posts: 16,930 NC
440Jim
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,930
NC
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ThumperDart Exactly, I don`t think the Cranes or Comps were designed for those pressures and that`s why I went to Harlands.............
440lebaron: Hello, t&d's will also break, .650 lift roller 600 lbs spring, have broken 3-4 in 250 runs, they do have a life cycle as t&d says. just broke 1 intake at lvd this past weekend. car has been sitting since may without backing off rockers??
gary
This is disappointing. The original poster is only running 550 lbs open pressure (his estimate) and the rockers are breaking. There has to be more to it! -number of runs -valve float or surge -etc. or something
Now I agree Harland Sharp or T&D are better, but at 550 lbs open that is disappointing. And the T&D post is disappointing at 600 lbs open. These are not high pressures, IMO. But I do agree that aluminum doesn't last forever. But I know a bunch of bracket racers that put 300 passes on their cars every season; and they don't buy rockers every year.
Maybe I should just stick to the flat tappet cams and 400ish open pressure... Even the Indy rockers hold up to that ! LOL
What's Up with this????
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Re: Crane rocker carnage pic. Need rocker recommendations
[Re: dragram440]
#1101195
10/25/11 09:51 PM
10/25/11 09:51 PM
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Joined: Dec 2009
Posts: 20,662 in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
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Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,662
in a cattle trailer down by th...
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I have the blue Mopar Performance ones that are made by Crane. I broke one this season at just under 7000 RPM's in the lights on 1/4 mile. Mine broke at the same spot, looks identical to yours. I replaced mine with a spare on, and replaced the mangled up push rod, so far so good.
Brian Dunnigan
I am running these same blue mopar performance rockers with a solid roller cam. I hope mine dont do that. Or should I be expecting it?
I have both the Crane Golds and the Mopar blues and they are not the same.
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion. '74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion. 2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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Re: Crane rocker carnage pic. Need rocker recommendations
[Re: Dodgem]
#1101198
10/30/11 11:55 AM
10/30/11 11:55 AM
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Joined: Nov 2004
Posts: 3,544 Syracuse,NY
CompWedgeEngines
master
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master
Joined: Nov 2004
Posts: 3,544
Syracuse,NY
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I'd be willing to bet you know already why this happened. Rocker breaking, causing a rod to break? Or rod breaking, casuing a rocker to break...hmmmm..decisions...decisions....I know where I would put my money.... How bad is the rest of the damage?
RIP Monte Smith
Your work is a reflection of yourself, autograph it with quality.
WD for Diamond Pistons,Sidewinder cylinder heads, Wiseco, K1 rods and cranks,BAM lifters, Morel lifters, Molnar Technologies, Harland Sharp, Pro Gear, Cometic, King Engine Bearings and many others.
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Re: Crane rocker carnage pic. Need rocker recommendations
[Re: Mopar-Al]
#1101200
10/30/11 12:31 PM
10/30/11 12:31 PM
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Joined: Mar 2005
Posts: 867 Bellevue, NE
Charger453
OP
super stock
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OP
super stock
Joined: Mar 2005
Posts: 867
Bellevue, NE
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This thread is making me nervous now. I have 230 closed 685 open on my springs. crane golds at 1.5 ratio. low .700 lift on eddy rpm heads. I planned on changing the complete top end by summer, but may end up doing it sooner.
I planned on waiting until next spring since the season is almost over, but Todd (Competitionwedge) gave me a sweet price so I'm getting them now. I may do a little street driving if the weather stays nice. My local track is done after today, but KCIR runs thru November according to their site, so I might try to run down there sometime. I was nervous about the Cranes and had one break. I'm not waiting any longer.
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Re: Crane rocker carnage pic. Need rocker recommendations
[Re: Scott58]
#1101204
11/04/11 01:08 AM
11/04/11 01:08 AM
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Joined: Nov 2005
Posts: 808 mckinney texas
shoebox
super stock
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super stock
Joined: Nov 2005
Posts: 808
mckinney texas
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RAS makes a very strong rocker in stainless, good if you do a lot of street use. Very expensive, though.
That would be fine if you could call these people and someone Would answer the phone! They don't return calls or emails. I don't think Anyone can get these rockers anymore! Lol. I'm sore with these folks.. Does it show? Maybe I'll get my rockers back someday.
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Re: Crane rocker carnage pic. Need rocker recommendations
[Re: Guitar Jones]
#1101205
11/04/11 02:24 PM
11/04/11 02:24 PM
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Joined: Jan 2007
Posts: 3,695 nc
emarine01
master
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master
Joined: Jan 2007
Posts: 3,695
nc
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I have the blue Mopar Performance ones that are made by Crane. I broke one this season at just under 7000 RPM's in the lights on 1/4 mile. Mine broke at the same spot, looks identical to yours. I replaced mine with a spare on, and replaced the mangled up push rod, so far so good.
Brian Dunnigan
I am running these same blue mopar performance rockers with a solid roller cam. I hope mine dont do that. Or should I be expecting it?
I have both the Crane Golds and the Mopar blues and they are not the same.
Alrighty then... which one is better....
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Re: Crane rocker carnage pic. Need rocker recommendations
[Re: rickraw]
#1101207
11/04/11 05:07 PM
11/04/11 05:07 PM
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Joined: Jul 2010
Posts: 417 reynoldsburg,ohio
poppaj
mopar
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mopar
Joined: Jul 2010
Posts: 417
reynoldsburg,ohio
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I feel that a 620 lift or less flat tappet is the limit for Cranes and hughes. 700 is the limit for harland sharps. Anything bigger needs paired jessel or T&D... Flimsey cheap pushrods will also cause problems. Overkill is the safe way to go when you are building a valve train. poppaj
AA/NSS 65'Coronet "Whompin Wedge" Pop & Son Performance 557" B-1 power John Holt Chassis
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Re: Crane rocker carnage pic. Need rocker recommendations
[Re: poppaj]
#1101208
11/04/11 11:10 PM
11/04/11 11:10 PM
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Joined: Aug 2008
Posts: 4,075 Mo.
racerx
master
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master
Joined: Aug 2008
Posts: 4,075
Mo.
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I feel that a 620 lift or less flat tappet is the limit for Cranes and hughes. 700 is the limit for harland sharps. Anything bigger needs paired jessel or T&D... Flimsey cheap pushrods will also cause problems. Overkill is the safe way to go when you are building a valve train. poppaj
Harland sharps r rated up to 900" lift ive just upgraded to a set of Smith Brothers 120 wall/3/8 push rods at the end of the season hoping to eliminate some of the flex in the drive train
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