World wedge block to 4.5 inches. 4.15 forged crank de-stroked to 4.0 with 2.20 rod journals. 7.2 inch Crower billet I-beams. External pickup, crank scraper. 12.5-13CR. BIG roller, Jesel belt drive and rockers. Edelbrock MW heads (massaged) Indy dual carb intake. 509 inches with a proven rod ratio (440), big bore-short stroke and light weight.