DON'T USE A REGULAR TAP. Use clean-out taps & dies ONLY. Using REGULAR taps & dies removes metal & makes the bolts loose in the threaded holes. Even using a wire brush rounds off the threads on bolts. For a proper cleaning you should ONLY use clean-out taps & dies. Bring your manifolds to a machinist & have them clean-up & true the manifolds on a broach/cylinder head re-surfacing machine. Using a belt sander is DEFINITELY A NO-N0. I don't care how big it may be. There's NO WAY the manifold can be held properly & it rounds off the edges. I'm sure others can attest to this who have had it done & their manifolds started leaking again!!!!
Tom Telesco
Classic and Muscle Automotive
12 Cook St.
Norwalk, CT 06853-1601
Day Phone 203-324-6045 ET
NailHead Mini-Starters '53-'66
Adjustable Roller Tip Rocker Arms - All NailHeads
Custom forged pistons
Front & rear neoprene seals
Many other "Nail" parts
"If I can't get it, you don't need it!"
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