Thread: BBC aluminum head question?
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09-11-2009 06:41 AM #3
Well, the ZZ502 crate installation manual says to retorque after the first 30 mile break-in. Probably wouldn't hurt to check the ones you can get to without dropping the exhaust. Although the bottom row under the exhaust ports are the shortest bolts and would be more proned to needing checked ..............
KitzJon Kitzmiller, MSME, PhD EE, 32 Ford Hiboy Roadster, Cornhusker frame, Heidts IFS/IRS, 3.50 Posi, Lone Star body, Lone Star/Kitz internal frame, ZZ502/550, TH400





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