The JEGS Ring Compressor is absolutely the quickest and easiest way to install pistons.
Simply slide the ring compressor clamp over the rings, give it a squeeze and tap the piston into the block! Compressor Set includes ratcheting pliers and six compression bands that range in size from 2-7/8'' up to 4-3/8''. That should be plenty big enough for us mortals who are not building behemoth mountain motors that have a bore size larger than 4-3/8''. Pliers and ring compressor bands come in a sturdy plastic storage case to properly store and protect your investment.