Checkered Flag Performance 3.780 Tapered Piston Ring Compressor

Perfect

Junk

Super easy to install pistons.

It worked great.

Made installing the pistons in my 5.3 lm7 a cake walk. The top starts off wide and when you push the piston down it gradually closes the ring gap to fit in the bore. Yes Ill probably only use this 2 or 3 times MAYBE, but it is worth the 20 bucks to compress the rings down to fit easliy

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.

If you have a set bore you are working with, this tool is amazing to use. Soo much better then any adjustable one I have used in the past. It was so easy, I thought something was wrong.

Good investment. Saves so much time.

Yes it is bore specific. But you will never install pistons faster than you ever have without it. Fast, easy,great tool for installing stock bore Ls 5.3 pistons.

Worked perfectly for 5.3 ls pistons