Checkered Flag Performance 3.780 Tapered Piston Ring Compressor

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.

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.

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.

Worked perfect

Best tool in my box...definitely worth the money!

These are inexpensive enough for the shade tree mechanic to own even if you only do 1 motor. I have used the universal ratcheting band type and have cut both hands. This tool makes installing pistons a breeze.

Add some lube set the piston in so the skirts are out the bottom then set in the cylinder sleeve dot on the piston toward the front of the motor and push piston down and tap with a rubber mallet. That easy.

Works great, thanks

Ill never use the old style again. Worked great

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!