Will Hot Cam 1.6 rockers fit under Vortec valve covers? - Hot Rod Forum : Hotrodders Bulletin Board
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Old 01-20-2010, 08:18 PM
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Will Hot Cam 1.6 rockers fit under Vortec valve covers?

I'm building a vortec head based 350 roller block and haven't picked up any valve covers yet. I am using the 1.6 ratio roller rockers that come with the GM Hot Cam Kit. I like the stock stamped steel center-bolt valve covers and would like to use them if possible. Have any of you guys fit these rockers under the Chevy valve covers?

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Old 01-20-2010, 08:35 PM
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are they full roller rockers, if they are , they won't have the clearence, GM use to make a adapter to convert center bolt vavle covers heads to the old style 4 bolt valve covers (check with the GM performance parts book)
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Old 01-20-2010, 08:54 PM
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Quote:
Originally Posted by TNshadetree
I'm building a vortec head based 350 roller block and haven't picked up any valve covers yet. I am using the 1.6 ratio roller rockers that come with the GM Hot Cam Kit. I like the stock stamped steel center-bolt valve covers and would like to use them if possible. Have any of you guys fit these rockers under the Chevy valve covers?
They fit under the covers of the crate engines GM sells that use that rocker.
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Old 01-21-2010, 12:40 PM
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Quote:
Originally Posted by TNshadetree
I'm building a vortec head based 350 roller block and haven't picked up any valve covers yet. I am using the 1.6 ratio roller rockers that come with the GM Hot Cam Kit. I like the stock stamped steel center-bolt valve covers and would like to use them if possible. Have any of you guys fit these rockers under the Chevy valve covers?
The GM 1.6 roller rocker is a Crane design, it will fit under GM center-bolt covers. Other roller rockers either in brand or different models of Crane may have interference issues with the center bolts. You may grind and polish a clearance as necessary or convert to perimeter bolts with the purchase of adapters which are expensive or the fabrication of same if you have some tools and talent (saber saw, files, electric drill in case your shop is missing a milling machine, and a tap set will work fine) for a lot less money if you can find some quarter inch aluminum plate.

Bogie
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Old 01-21-2010, 02:28 PM
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Extra thick and/or double gasketing can get you extra height as well.
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