The Deve's rings are a 4 piece oil ring as I remember, which really suprised me... It has the two scrapers, a zigzag spacer, and a tensioner that goes behind all of it. In addition, the 2nd compression ring also had an additional tensioner spring behind the ring. Once compressed, they really fight tight down the bore of the block. I've probably only put just over 1000 miles on my engine so far, I just got it in at the end of October, and it sat for 3 weeks in dec with the blown up rear end. I can tell you that within 100 miles or so, there is next to zero blow by, and it sure starts great, even with the leaky valves!
Jason
|