P/N 15042R-8 -ARP2000 bolts (3/8” diameter) -Double ribbed pin surround -Approximately 690 grams -Held to the same quality standards and painstaking tight tolerances as all Manley rods -Bridges the gap between our standard, proven H-Beams and top of the line, best of the best Pro Series rods -H-Tuff delivers a stronger rod with greater safety margin to handle elevated boost and higher power levels for a modest price premium over standard H-Beams -H-Tuff design incorporates increased cross-sectional thickness in critical areas -1200RWHP Capable Learn More