Not to be a pain Art, or contradict Steve Bennett, but in the 12 years of working on all makes of auto engines with aluminum heads, unless anti-seize was used religiously, it was a mistake to attempt removal of the plugs from a HOT engine due to the plgs having a different expansion rate than the heads, due to dis-similar metals. If doing a re-build one might consider prior to head re-installation using steel plug threads by installing steel thread inserts, available at most auto supply houses. This eliminates the different metal issue and allows plug removal hot or cold. Steel to steel presents no problems to removal unless either overtorqued, or extensive time since last removal (rust accumulation etc...).
Colin & Bev Rainey KR2(td) crain...@cfl.rr.com Sanford, Florida FLY SAFE!!!!