The Dieselsite VCSTUD73 is an upgraded valve cover stud kit engineered for 1994–2003 7.3 Powerstroke diesel engines. It replaces the factory valve cover bolts with high-strength studs that thread directly into the cylinder head, simplifying gasket alignment and significantly improving perimeter clamping force. Dieselsite precision-machines each stud with a broached internal Allen head for easy installation and removal, and packages the complete hardware set with matching nuts, washers, and longer studs specifically configured for accessory bracket mounting (such as the engine oil dipstick tube and engine harness brackets).

Pinched valve cover gaskets, oil weeping onto exhaust manifolds, stripped cylinder head bolt holes, and difficult rear bolt alignment under tight cowl firewalls are what this stud kit eliminates. Installing factory valve covers and integrated under-valve-cover harness (UVCH) gaskets with loose bolts often results in the gasket shifting out of place, causing chronic oil leaks or crushed electrical pass-throughs. Threading studs into the head first acts as a precision guide, locking the gasket and stamped steel or composite valve cover directly into place before any nuts are threaded down. It is the complete valve cover stud and nut hardware kit only; valve cover gaskets and valve covers are sold separately.

It fits all 1994–2003 7.3 Powerstroke Ford Super Duty trucks, OBS F-Series, Excursions, and E-Series vans.

Fitment

• 1994–1997 Ford F-250 / F-350 OBS 7.3L Powerstroke
• 1999–2003 Ford F-250 Super Duty 7.3L Powerstroke
• 1999–2003 Ford F-350 Super Duty 7.3L Powerstroke
• 1999–2003 Ford F-450 / F-550 Super Duty 7.3L Powerstroke
• 2000–2003 Ford Excursion 7.3L Powerstroke
• 1994–2003 Ford E-Series Vans 7.3L Powerstroke
• Navistar T444E diesel engines
• Full thread engagement in cylinder head prevents stripped female threads
• Broached internal Allen head drive for fast installation and removal
• Includes longer studs for mounting factory accessory and wire harness brackets
• Guarantees exact alignment between the cylinder head, UVCH gasket, and cover
• Complete valve cover stud hardware kit only

Thoroughly chase and clean all female valve cover bolt holes in the cylinder heads using a bottoming tap or thread chaser, blowing out any residual oil or solvent with compressed air before installation. Thread the studs into the cylinder head hand-tight using an Allen key in the broached hex drive—do not over-tighten or torque the studs into the head deck. Position the longer studs in the factory locations dedicated to securing the oil dipstick tube bracket and wiring harness stays. Slide the valve cover gasket and valve cover over the studs, install the provided washers and nuts, and torque them evenly in a crisscross pattern to the factory specification of 96–100 in-lbs (approximately 8 ft-lbs) to avoid distorting the valve cover perimeter flange.