Well I came up with the The number of turns head thread Test.
Basically there is a seat in the head for the wider portion of the plugs just above the threads to stop on. This seat, notch, ledge, whatever... read more

Mustang FeedsStreet Outlaws Star Christopher "Block" Gordon was killed in a on track crash. Block was racing at KD Motorsports Park in Ohio.
The pros were racing for an axe and bragging rights Friday Night at Brainerd. Here's who scored the provisional number one spots.
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Chad Green spent the summer break getting ready for a big push during the countdown. Check out his plans for Brainerd this weekend.
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Discover how TSP Universal LS Twin Turbo Headers streamline your build. Improve clearance and flexibility in your turbo system.
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Elite Motorsports is bringing a fleet of new Jerry Haas Pro Stockers to Brainerd. The team hopes these new rides will help a late season push.
Recent Technical Articles
Doug Kalitta, Jordan Vandergriff And Dallas Glenn Claim No. 1 Qualifiers At NHRA Brai
Kalitta, Vandergriff, and Glenn went number one at Brainerd. Here's a recap of qualifying and results from the Mission #2Fast2Tasty Challenge.
NewsSource Today, 07:52 AM