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Old 10-30-2003, 11:42 PM
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SBC Valve Cover Question

I just bought a very nice pair of high polished aluminum valve covers for my SBC 400 (willies36 would be proud, more chrome)! My question is do I need spreaders on these? Also should I use stainless bolts or? This is all part of my engine compartment cleanup anything else I can fix while I'm at it I will. I'll also do the lash adjustments on the valves while I've got the old ones off. Also should I use sealant on the top and bottom of the gasket?

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Mark

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Old 10-30-2003, 11:46 PM
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If they're cast aluminum no, if they're stamped use the spreaders.

I like to put a very thin amount of sealer on the valve cover side of the gasket so that the gasket comes off with the valve cover whenever it's removed.
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Old 10-31-2003, 02:50 AM
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I like to glue my gaskets to the cover with yellow 3M & use liquid Permatex (Super 300 or Aviation) on the bottom so they come off cleanly. I used to do this on my VW, setting valves every 2000 miles, & rarely had to change the gaskets. I did my Nova that way in 1976, & only ~2" of gasket stuck to the head when I replaced the gaskets a year or two ago. Be sure & use a washer under the bolts with the aluminum covers.
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Old 10-31-2003, 03:19 PM
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What type of washers do you recommend? Flat, Star or ???? Also how much torque on the bolts?

Regards
Mark
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Old 10-31-2003, 06:03 PM
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I would use a plastic washer under the screws/bolts. I've got a set of the old Corvette ribbed covers on the '67 and bought the original type phillips-head screws and plastic washers from one of the Corvette parts dealers.
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