Company23 Torque Plate

Company23 has developed a Torque Plate for the EJ25 engines, to simulate the bore distortion of a torqued cylinder head, for the honing, boring, and ring gapping process.

519 + 540


Company23 LLC is an automotive engineering firm with the philosophy of providing aftermarket tools and products with quality and fitment that is often not seen in this industry. Company23 believes in the principle of using the right tool for the job. We strive to make working on your car easier and more enjoyable. By combining years of experience as mechanics with clever engineering, modern CNC equipment, and modern manufacturing methods, we can bring you the highest quality products at an affordable price. Our products are rigorously tested over and over before we bring them to market to make sure you can depend on them.

Grouped product items
Product Name Qty
519: EJ25
Now Only $265.46 Regular Price $294.95
540: FA20
Now Only $265.46 Regular Price $294.95


  • Simulates the bore distortion of a torqued cylinder head during the honing, boring, and ring gapping process
  • Proven to reduce blowby, reduce oil consumption, and increase reliability
  • Essential for high performance engine builds
  • Top bore edge radius makes it comfortable for ring gapping
  • Included spacers duplicate cylinder head deck height to accurately reproduce block stresses
  • Use with aftermarket head studs or OEM head bolts
  • CNC machined from tempered and anodized aerospace-grade aluminum

SKU: 519 (EJ25)

Works with:

  • EJ25 engines (EJ255 & EJ257)

SKU: 540 (FA20)

Works with:

  • FA20 and FA20DIT engines

warning_symbolWARNING: Operating, servicing and maintaining a passenger vehicle or off-road vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to

More Information
SKU 519 + 540
Product Type Maintenance and Accessories
Maintenance and Accessories Tools
Brand Company23
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