Checkered Flag Performance 3.780 Tapered Piston Ring Compressor

Ill never use the old style again. Worked great

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!!

Super easy to install pistons.

Very well made, had to return, needed the 4 inch size.

Good finish and great fitment. Ill never use a clamp style again unless its a one time thing. Even let a friend of mine with next to no mechanical knowledge pop a couple pistons in and had no issues.

A awesome tool and well worth the money if your rebuilding a 4.8l or 5.3l ls engine.

This is the king of ring installers , no more fighting the compressed style . Slide in from bottom , and can actually tap pistons in cylinder by hand.

Perfect

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!

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.