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Brian Tooley Racing BTR LS Piston Ring Compressor Tool 4.065' bore 6.2 LS3 L99 LS9 L92 K9H L94

4.4 (4) Write Review
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$43.99

$ 20 .99 $20.99

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  • BTR LS Piston Ring Compressor Tool 4.065 bore
  • Fits 4.065 Bore 6.2 LS3 L99 LS9 L92 K9H L94
  • One piece aluminum tapered ring compressors have been around for some time, but BTR has made a significant improvement to the design. Rather than relying on the piston skirt to locate the pistons as they're being inserted into the block like one piece tapered ring compressors currently on the market, the new BTR ring compressors have a small but very important reverse chamfer at the bottom that fits into the chamfer at the top of the block which serves two functions.
  • The lazer etching on a black background is easy to read and looks good even after lots of uses.
  • In our beta testing against competitors tapered ring compressors, the BTR was easier to use and never caught a oil ring between the compressor and the block.


BTR Brian Tooley Racing LS Piston Ring Compressor Tool 4.065 bore Fits 4.065 Bore 6.2 LS3 L99 LS9 L92 K9H L94 One piece aluminum tapered ring compressors have been around for some time, but BTR has made a significant improvement to the design. Rather than relying on the piston skirt to locate the pistons as they're being inserted into the block like one piece tapered ring compressors currently on the market, the new BTR ring compressors have a small but very important reverse chamfer at the bottom that fits into the chamfer at the top of the block which serves two functions. First, it locates the ring compressor exactly over the center of the hole. And, secondly, it reduces the chance of the oil ring getting caught between the ring compressor and the top of the block. The lazer etching on a black background is easy to read and looks good even after lots of uses. In our beta testing against competitors tapered ring compressors, the BTR was easier to use and never caught a oil ring between the compressor and the block.


Stephen Szabo
Reviewed in the United States on January 16, 2025
Perfect for my stock bore 6.2 LS engine. Piston slides into bore by hand perfectly. Excellent and made the work so easy. Totally worth the extra expense. I will never use an adjustable ring compressor again. Saves time and effort.
Kilroy w.
Reviewed in the United States on September 28, 2024
So glad I bought this tool, it made installing my new pistons trouble free.
Carlos Rodríguez
Reviewed in the United States on June 2, 2024
Best ring compressor I have gotten makes the job simple and easy to use. No other tool compares to this. Definitely worth your money
Jason M.
Reviewed in the United States on May 30, 2024
After struggling with the old style ring compressor with no luck, we got this one for a 6.2. the little ridge to line it up is awesome, and the piston goes in effortlessly. Awesome tool.