Stock Stroke 340 Build with NC Engine Builder
He confirmed that there was at least .005”-.006” of taper in the bores but they should clean up at .020 over which I was happy with as that should leave some extra meat for the future. The taper is probably what caused the ring to break. Because I want it to rev he suggested a modern piston and ring package. The cost is reasonable and for my intended purpose, less reciprocating weight would provide a little free HP and rev like crazy. He has a set of Icon .020 flat top pistons and Scat rods readily available. They will allow us to get to the 10.5:1 - 11:1 compression range I want to be in. I had intended to tube the lifter galley but he wasn’t too high on that course of action and suggested bushing the lifters, which provide several benefits. Since I have plans for future builds with bigger heads and cam, it made sense to spend the extra for the bushing work, which already paid dividends which we’ll see later. The difference in weight on the new pistons/rods was an impressive 355gr per hole.
He confirmed that there was at least .005”-.006” of taper in the bores but they should clean up at .020 over which I was happy with as that should leave some extra meat for the future. The taper is probably what caused the ring to break. Because I want it to rev he suggested a modern piston and ring package. The cost is reasonable and for my intended purpose, less reciprocating weight would provide a little free HP and rev like crazy. He has a set of Icon .020 flat top pistons and Scat rods readily available. They will allow us to get to the 10.5:1 - 11:1 compression range I want to be in. I had intended to tube the lifter galley but he wasn’t too high on that course of action and suggested bushing the lifters, which provide several benefits. Since I have plans for future builds with bigger heads and cam, it made sense to spend the extra for the bushing work, which already paid dividends which we’ll see later. The difference in weight on the new pistons/rods was an impressive 355gr per hole.