A MUST for Turbo, Supercharged & NO2 engines.
Thicker beam Cross Section supports additional torque from increased boost and Nitrous.
Thicker H-fins also strengthen the rod beam.
Special Proprietary ARP2000 bolts have asymmetric threads and the correct thread length to inhibit breakage.
7/16 Bolts also have increased stretch length that makes it much stronger and less prone to breakage.
These are Definitely superior to the standard ARP2000 bolts.
6.635 & 6.660 lengths
These are made special for USA Performance Parts by premier rod manufacturer Molnar Technologies of Grand Rapids, Michigan (Not available from Molnar directly)
We have XD Xtreme Duty rods for many other applications