Checkered Flag Performance 3.780 Tapered Piston Ring Compressor

Just finished installing all 8 pistons on my 5.3l build. Works great and is easier to use than the adjustable band style. Only down side is if you change bore size you have to buy another one relating to the new bore size. But, at $20, its worth it. Great tool!

Worked perfectly on LS 5.3 Vortec rebuild.

A+

Works as it should, makes the job fast and easy

These style ping ring compressors are hands down the best. Totally worth the money and they make installing pistons into cylinders a breeze with the rings installed. The only downside is having to buy for all cylinder configurations. Highly recommend!

Worked perfectly for 5.3 ls pistons

Works perfect

Super easy to install pistons.

used for stock bore pistons, stock size rings with 20 thou gap. never going back to old style ring compressors ever again. used it only once, i will probably never use it again, but il looks good on my shelf. it will save you a lot of headaches!!

Have always used a ratcheting style clamp to set pistons in and sometimes have issues where Id have to start over, but with this device the positions dropped right into cylinder with a couple of taps.