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#21980 08/14/02 05:06 PM
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63Duece Offline OP
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hi i have gotten the crane gold roller rockers for my 250 chevy that im building. i also have a offy valve cover. i know these things need to be modified some what but could someone tell me how they did it? thanks

drew

#21981 08/14/02 06:39 PM
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If the rockers are square The first and last rocker will need to be rounded off to clear the valve cover. Not sure what the offey valve cover looks like. But Most after market tin chrome valve covers. May need a double gasket so that the rockers do not hit the top of it. Like one i had did. In some cases the rockers will hit on the stock covers as well. Hope this helps.}[oooooo]



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#21982 08/15/02 02:37 AM
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the offenhauser valve cover is cast aluminum and is a little taller. kinda looks like the clifford one

#21983 08/15/02 05:56 AM
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Ok you still may have to round off the ends of the first and last rocker. To get them to clear the inside ends. I had to with my marine cover.And you should be fine as far as the height goes. hope this helps }[oooooo]

Ps the way I had checked mine when I heard it hitting. I used some lay out die You can also use a black marker on the inside of the cover on both ends .And made sure the was pressure on those rockers and made sure they was centered over the valve and slid the cover on It will scratch the die then you can litely grind it. And Repete till it now longer rubs/scratchs the die off the cover.BUT TAKE OFF From the rockers first round the corners.I made a few passes in side the valve cover. But did all the grinding to the rockers themselfs .Take a little at a Time for 2 reasons NOt to over heat the rockers @ Not to take off more then you have to. ALSO KEEP IN MIND THIS VOIDS ANY KINDA WARRANTY THE ROCKERS MY HAVE!! I got mind used so i wasn't worried about that.

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[This message has been edited by Twisted6 (edited 08-15-2002).]


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#21984 08/15/02 06:28 AM
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thanks a bunch


drew

#21985 08/16/02 01:16 AM
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 Quote:
Originally posted by 63Duece:
thanks a bunch


drew


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#21986 08/16/02 01:16 AM
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Your Welcome glad i could help .}[oooooo]

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[This message has been edited by Twisted6 (edited 08-16-2002).]


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#21987 08/16/02 10:52 AM
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For clearance Stovebolt sells a adapter (1/2') to a 235 4 bolt valve cover, Larrowe and sons sells the same that takes a 2 bolt 216 style valve cover. Either will give you the clearance.

Ronnie

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#21988 08/26/02 01:00 PM
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Hi guys-

Most of you have seen the set up on my car in "Reader's Rides" and yes, the 270 wolverine cam, huge new Stovebolt headers, and tri-power do make a difference.

A couple of months ago, I was at the Back to the 50's show and i was luckily leaving the pMotel parking lot when I heard a loud rattleing sound coming from under the hood. I had broken a rocker arm on the 4th cylinder. I have never seen one snap like that before so I got on the phone and finally found one across town at Napa. I replaced and it drove perfect. Note: how do you re-torque a rocker arm in the parking lot 350 mile from home? You count the 1/4 turns with ratchet off, and re-yorque the same. Once it's running again, you can adjust it to get rid of the clicking. It took 15 1/4 turns by the way. When I returned home, i ordered new CompCams lifter to make sure they were all new and matched. The motor was a crate remanufactured unit and I wasn't sure what quality rockers were put in. Most likely, cheap! I wanted to go to Roller rockers, but they did not have the bolt on type for my 292 without using the screw in studs and roller assembly. I was tols by a machine shop that roller rockers are only give a slight advantage when used by themselves. When used in conjuction with ROLLER LIFTERS, they add a significant advantage in less friction and HP gain. Is this true? The guy could have easily have hard sold me the roller rockers without the lifters but said on the street, roller rockers by themselves do not add much and the stock stamped ones actually work very well.
Any thoughts on this?


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