Selling a good used 4.8 gen 4 (big rods/floating wristpins) but still 24x crank sensor. I had plans for boost but changed the engine. Gap rings and add heads and a cam and cram all the boost you want and spin it to the moon. Good clean bores. Always covered and stored a climate controlled garage. Can help with delivery in minot area if you can unload. I have more lsx/chevy stuff just ask if you're working on something and need parts.