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Heads for Grooving Iron
Heads for Grooving Iron

Heads for Grooving Iron

Dirt Late Model, Legends, Midget, Mini Sprint, Modified, Quarter Midget, Sprint Car, Stock Car

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Heads for Grooving Iron
Heads for Grooving Iron
Heads for Grooving Iron
Heads for Grooving Iron
Heads for Grooving Iron
Heads for Grooving Iron
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Part # 91082061
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  • These heads are specially designed to fit the Tru-Hot Grooving Iron, Ideal Grooving Iron, and Econ-o-siper
  • Has an overall diameter of .38" and is available in several sizes to custom fit your need
  • Solid brass construction
  • Blades can be installed into head for grooving or siping tires
  • Five most common sizes available: #3, #4, #5, #6, and #8


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  • Solid brass construction for optimum thermal transfer
  • Fits Speedway Motors and Ideal Heated Knives brand tire groovers
  • Includes carbon steel blade supports with stainless steel retaining screw
  • Blade size debossed into the tip of the head for easy identification
  • Available in sizes #3, #4, #5, #6, and #8
  • Matching blades available in packs of 12

Tire Grooving Tool Heads for Most Common Grooving and Siping Jobs

A heated tire groover is a great tool to have in a racer’s toolbox. Tire grooving and tire siping can be just the advantage you need for your race car’s tires to help you end up in the winner’s circle after a long night of racing on the dirt. Be sure and have the correct tool head and plenty of blades in your race car’s trailer at the ready trackside for grooving tires and siping tires. We carry a full lineup of cutting blades for these tire grooving iron heads too. Don’t forget you’ll want to install the head and set the blade to the depth of cut needed before plugging in the groover!

Grooving Iron heads for grooving irons listed below.

Grooving Iron Replacement Heads and Blades Application Chart

Item Details

Size #s are measured in 1/16-inch increments.


  • Install the head and set the blade to the depth of cut needed before plugging in the groover
  • Plug the groover in and allow it to warm up for five minutes before you start grooving; our tabletop tire grooving iron stand is suggested for warm up and cool down
  • Always store tool facing up/handle down in a vertical position while in use to minimize temperature transfer to the handle
  • Monitor the temperature of the tool and unplug it as needed to regulate the temperature

Tire Grooving Tips

  • Sanding the mold nubs off the tread before grooving or siping is suggested if the nubs are large; a tire grinder with a 60-grit sanding pad works well for this
  • Most tires are easier to groove or sipe with the tire mounted and inflated to normal pressures; this is especially true with thin wall racing tires
  • Complex tread designs can be marked out with a tire marking paint pen or paint stick

Circle Track specific Grooving and Siping Tips

Tire Grooving

  • Grooves around the circumference of the tire will add side bite and help cool the tire
  • Grooves across the tread will add forward bite and help warm up the tire
  • Rear tire grooves and sipes across the tread typically work best when straight across the tread (90 degrees to the circumferential grooves)
  • Front tire grooves and sipes across the tread typically work better at a slight angle and when viewed from the top of the right front tire the grooves will angle from right front to left rear

Tire Siping

  • Sipes have a similar effect as grooves and are primarily used to warm up the tire
  • Sipes around the circumference do not provide much if any cooling effect since they are not open for air to flow through like grooves are
  • 1/8-inch to 3/16-inch sipe depth works well for most tires.
  • Adding more sipes which are closer together will increase the tire temperature and will add grip as long as the tire is not overheated
  • If a tire is overheated and blisters the sipes need to be spaced further apart and possibly a shallower depth of cut should be used
  • More sipes are typically used on front tires to help them heat up and less sipes on rear tires, especially the right rear

Important Messages

  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
Some parts are not legal for use in California or other states with similar laws/regulations


Q & A

Videos & Articles
  • Grooving tires increases traction or grip. Find out more about the do's and don'ts when it comes to grooving.
  • Learn how durometers can help you select the best tires from a new stack, or help you decide when you need to replace your current set.
  • Learn about finding the correct beadlock rings, lug-nut taper, wheel spacers, mud covers, and valve stems. This components are critical for safety.

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