Bolt Circle Calculators

Welcome to GTSparkPlugs!

This is the NEW site and currently under heavy construction. Look above for the menu and give it a try. I'm adding content as fast as I can, check the Site Updates below for current activities. If you have feedback check out the Contact page for information on my information.

Site Updates

08/23/2014 - Added Flathead Ford Firing Order
08/09/2014 - Added Bolt Circle Calculator
08/06/2014 - Added Valve Adjusting Order to References Library
08/06/2014 - Added Spark Plug Color Reading to References Library
08/01/2014 - Added Wheel Bolt Patterns to References Library
07/30/2014 - Added Powerstroke/T444E Firing Order
07/28/2014 - Added Reference Library
07/20/2014 - Added Vintage Call Box Make Over Page
06/27/2014 - Added Snap On MT2500 Rebuild Page
06/24/2014 - Added DIY Shop Rags Page
05/24/2014 - Added Wire Rope Cutter Tool Review Page
03/02/2014 - Added DIY Spanner Wrench Tool Project Page
TIP : You can CLICK the small Spark Plug in the upper right corner of every page to quickly jump to the contact page
Chevy and Ford Firing Orders
Tab Thanks for checking out the site, Don't forget to browse around using the menus above. If you are feeling generous for all my hard work click Amazon to support the site or others. To leave a message click the ABOUT Menu item!
Measuring Wheel Lug Patterns
Spark Plug Color Chart
Small Block Ford Valve Adjustment
New Site Content Below
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