7.3 Powerstroke Stage 2 Pushrods — Smith Brothers NH312B-DD

Factory 7.3L pushrods were built for stock cylinder pressure. Hybrid injectors, injectors larger than Stage 2, higher boost, or more RPM can flex or bend those rods and cause a miss, popping through the intake or exhaust, and a rough idle. Smith Brothers NH312B-DD Stage 2 rods use heat-treated 3/8" 4130 chromoly tubing with a .120" wall plus 3/8" ball ends at stock length so they drop in as a direct replacement. Smith Brothers has built performance pushrods in the USA since 1953.

Beehive valve springs are required to run these Stage 2 pushrods. Do not install this set with stock springs. Pair them with a 7.3 Powerstroke Stage 2 beehive valve spring kit (Comp Cams or equivalent) and ARP head studs for proper valvetrain control.

• Complete set of 16
• Stage 2: .120" wall thickness
• 3/8" heat-treated 4130 chromoly tube
• 3/8" ball ends
• Stock length (approx. 10.240" overall)
• Direct replacement for OEM 7.3 Powerstroke pushrods
• Built for hybrid injectors and injectors above ~275 cc
• Stronger column stiffness under high cylinder pressure and RPM
• Made in the USA
• Beehive valve springs required
• Best used with ARP head studs and Stage 2 beehive springs

Fitment

• Ford 7.3L Powerstroke 1994–2003
• F-250 Super Duty
• F-350 Super Duty
• F-450 Super Duty
• F-550 Super Duty
• Ford Excursion
• Compatible Econoline and commercial 7.3L Powerstroke applications
• Confirm length if the block has been decked, heads milled, or a non-stock cam/lifter package is installed
• Some Stage 2 cam kits require a different custom length

These are a bolt-in replacement for factory pushrods. Follow the factory service procedure for rocker removal, install, and valve adjustment. Do not reuse bent or suspect OEM rods on a hybrid or high-pressure build.