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ROCKERS ARE CLOSE!! #644887
03/19/10 11:19 AM 03/19/10 11:19 AM
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Moparnut426 Offline OP
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My harland sharps are very close to my springs. If the spring is rotated to where the top edge of the flat coil is twords the rocker itself it will leave marks on the aluminum. How much should I clearance off the rocker?

I know the springs will rotate on the heads, I was going to rotate all my springs to where the sharp edge of the spring was to the outside of the head, and then the round radious of the coil would give enough clearance, but it wouldnt last too long as they will rotate back into the bad spot. Any ideas??

Kasey
Re: ROCKERS ARE CLOSE!! [Re: Moparnut426] #644888
03/19/10 11:26 AM 03/19/10 11:26 AM
Joined: Dec 2006
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Indy
FlyFish Offline
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What size spring and what head?

67 Barracuda street car, 408, e85, 1.38 60', 6.44 @105.9 in the 1/8 mile, 10.19 @130.5 in the 1/4...so far....
Re: ROCKERS ARE CLOSE!! [Re: FlyFish] #644889
03/19/10 11:49 AM 03/19/10 11:49 AM
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Moparnut426 Offline OP
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COMP 943 Springs, 1.55 diameter.

B1Ba brodix heads.

Kasey
Re: ROCKERS ARE CLOSE!! [Re: Moparnut426] #644890
03/19/10 11:58 AM 03/19/10 11:58 AM
Joined: Jan 2003
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Shelby Twp. Mi
HardcoreB Offline
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First, you should make absolute certain the retainer is made for the spring!!! Fit is critical. Consider lash caps an option before grinding the rocker for about .080" from its closest point of contact.
Re: ROCKERS ARE CLOSE!! [Re: HardcoreB] #644891
03/19/10 12:15 PM 03/19/10 12:15 PM
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Moparnut426 Offline OP
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Well Im running the tool steel retainer Ryan, and Brian both recomended. Everything else onthe heads are exactly where they need to be. I dont have .80 for sure.

Kasey
Re: ROCKERS ARE CLOSE!! [Re: Moparnut426] #644892
03/19/10 01:09 PM 03/19/10 01:09 PM
Joined: Feb 2007
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maximum entropy Offline
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what's your installed height? i ain't never had prollems wit harland. tall valves? what kind of heads?

for what is the good life if not doing things thoughtfully?
Re: ROCKERS ARE CLOSE!! [Re: Moparnut426] #644893
03/19/10 01:18 PM 03/19/10 01:18 PM
Joined: Feb 2003
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S.E. Michigan
cl440 Offline
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You could try some -.050 keepers. That helped with our setup. Just remember your lowering your spring height by .050. May need to remove a shim?

Re: ROCKERS ARE CLOSE!! [Re: maximum entropy] #644894
03/19/10 01:20 PM 03/19/10 01:20 PM
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Moparnut426 Offline OP
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long valves 1.95 installed height.
Re: ROCKERS ARE CLOSE!! [Re: cl440] #644895
03/19/10 02:44 PM 03/19/10 02:44 PM
Joined: Mar 2009
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Virginia Beach, VA
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Old School Offline
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Quote:

You could try some -.050 keepers. That helped with our setup. Just remember your lowering your spring height by .050. May need to remove a shim?


that is exactly what i did with my t&d,s.

68 cuda formula S 588" bb 5sp
70 CUDA CONVERT 500" 5SP (SUBLIME)
70 CUDA CONVERT 500" 5SP (PLUMCRAZY):TOO MUCH HORSEPOWER, IS ALMOST ENOUGH!
Re: ROCKERS ARE CLOSE!! [Re: Old School] #644896
03/19/10 02:45 PM 03/19/10 02:45 PM
Joined: Mar 2007
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Moparnut426 Offline OP
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Quote:

Quote:

You could try some -.050 keepers. That helped with our setup. Just remember your lowering your spring height by .050. May need to remove a shim?


that is exactly what i did with my t&d,s.



What heads you running?
Re: ROCKERS ARE CLOSE!! [Re: cl440] #644897
03/20/10 10:27 AM 03/20/10 10:27 AM
Joined: Oct 2007
Posts: 4,209
New York
polyspheric Offline
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try some -.050 keepers

X2.

Lash cap: changes the geometry. Unless it's already wrong in the opposite direction this will make things worse.
Grind the rocker: and then you know exactly where it will break.

Boffin Emeritus
Re: ROCKERS ARE CLOSE!! [Re: Moparnut426] #644898
03/20/10 06:28 PM 03/20/10 06:28 PM
Joined: May 2004
Posts: 2,864
IN
Irun5snd8th Offline
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1.550 springs on mine and I definitely have to have my Harlands machined. I hate it cause the rockers dont last as long.

AFCO, Rons Fuel Injection sponsored Dodge Challenger Mention Street Lethal Motorsports
Re: ROCKERS ARE CLOSE!! [Re: Moparnut426] #644899
03/20/10 06:35 PM 03/20/10 06:35 PM
Joined: Feb 2009
Posts: 1,532
off the grid
340B5 Offline
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Beehive springs?

Yeah, it's got a smallblock.
Re: ROCKERS ARE CLOSE!! [Re: Moparnut426] #644900
03/20/10 07:18 PM 03/20/10 07:18 PM
Joined: Mar 2009
Posts: 1,169
Virginia Beach, VA
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Old School Offline
super stock
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Virginia Beach, VA
Quote:

Quote:

Quote:

You could try some -.050 keepers. That helped with our setup. Just remember your lowering your spring height by .050. May need to remove a shim?


that is exactly what i did with my t&d,s.



What heads you running?


mine are indy sr,s.

68 cuda formula S 588" bb 5sp
70 CUDA CONVERT 500" 5SP (SUBLIME)
70 CUDA CONVERT 500" 5SP (PLUMCRAZY):TOO MUCH HORSEPOWER, IS ALMOST ENOUGH!
Re: ROCKERS ARE CLOSE!! [Re: Old School] #644901
03/20/10 09:52 PM 03/20/10 09:52 PM
Joined: Jan 2003
Posts: 5,991
Anoka County, MN
L
Leigh Offline
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I've had to fly cut ductile iron arms before, no problems. I don't know about aluminum arms, though, no experience.
Re: ROCKERS ARE CLOSE!! [Re: Leigh] #644902
03/20/10 11:09 PM 03/20/10 11:09 PM
Joined: Mar 2009
Posts: 1,169
Virginia Beach, VA
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Old School Offline
super stock
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Virginia Beach, VA
i myself would not cut on the rocker arms.i would get the clearence another way.i would be worried that i would weaken them. with alot of spring,thats not good.....

68 cuda formula S 588" bb 5sp
70 CUDA CONVERT 500" 5SP (SUBLIME)
70 CUDA CONVERT 500" 5SP (PLUMCRAZY):TOO MUCH HORSEPOWER, IS ALMOST ENOUGH!
Re: ROCKERS ARE CLOSE!! [Re: Old School] #644903
03/20/10 11:40 PM 03/20/10 11:40 PM
Joined: Mar 2007
Posts: 12,013
Finally a HUSKER again
Moparnut426 Offline OP
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Quote:

i myself would not cut on the rocker arms.i would get the clearence another way.i would be worried that i would weaken them. with alot of spring,thats not good.....



Yep, My springs arent crazy heavy, but the 943 is over 540# open IIRC.

Im gonna try the keeper trick.

Kasey
Re: ROCKERS ARE CLOSE!! [Re: Moparnut426] #644904
03/21/10 02:16 AM 03/21/10 02:16 AM
Joined: Jan 2003
Posts: 1,990
, PA
sleepyhead416 Offline
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, PA
G et a set of keepers that will hold a lash cap.
Re: ROCKERS ARE CLOSE!! [Re: sleepyhead416] #644905
03/21/10 10:15 AM 03/21/10 10:15 AM
Joined: Mar 2007
Posts: 12,013
Finally a HUSKER again
Moparnut426 Offline OP
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What part number is the comp .050 keepers I need. I cant find them anywhere.

kasey
Re: ROCKERS ARE CLOSE!! [Re: Moparnut426] #644906
03/21/10 12:04 PM 03/21/10 12:04 PM
Joined: Feb 2003
Posts: 2,563
S.E. Michigan
cl440 Offline
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Quote:

What part number is the comp .050 keepers I need. I cant find them anywhere.

kasey



630-16 is what we used. They are for 11/32, single groove valves with 10 deg retainers

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