Checkered Flag Performance 3.780 Tapered Piston Ring Compressor

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

Good investment. Saves so much time.

Works as it should, makes the job fast and easy

Works great, thanks

Works great best money spent on a ring compressor

Used this on my LM7 rebuild. I use stock sized pistons and rings and this tool made installing the ringed pistons into the cylinders a breeze. HIGHLY recommend. Personally prefer this over the adjustable compressors as you know you wont be making it too tight or too loose. Obviously the only trade off is having to buy an individual compressor for each engine build assuming you have different cylinder sizes on your other builds.

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.

Worked perfectly for 5.3 ls 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!!

perfect for 5.3