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Spark plugs in alum.heads

joelrpo687

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I'm almost ready to fire up my 64 Fury with stealth heads and a sommit ignition box on a 440 engine.What would you use to lubricate the spark plug threads-what is a good starting gap for the plugs.My motor is supposed to make 500 hp. 440 source sold me the Champion RC12YC.Either hemi-itis or superstocker preferred the Ngk 5672A-7 plugs because of the electrode's falling apart and hitting the piston ( I know they run crazy horsepower) I'm thinking I should get the NGK plugs.I've bought 4 dipsticks already=what's 2 sets of plugs? Thanks
 
Never seeze is a good addition on plugs in an aluminum head. I can't say that I find one brand of plug better than the other - would definitely not bother with $5 "zurconium" laser plugs, if you know what I mean. You will need to watch your heat range though. The 12YC plugs are stock heat range. If you've upped the compression any or increased cam, etc. you may find them too hot. They are a good starting point for though for a mild build...
 
I use the copper anti-seize for aluminum heads....
 
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