Oil Restrictors Dart/ Chevy SHP 5pr .090 Hole

The Oil Restrictors Dart/Chevy SHP 5pr .090 Hole by ALLSTAR PERFORMANCE is a precision orifice restrictor designed specifically for high-performance engine lubrication systems in Dart and Chevrolet small-block engines. These restrictors are essential for tuners and engine builders who need to control oil flow to critical engine components, particularly in modified or race-prepared powerplants.

By managing oil delivery rates, these restrictors help prevent bearing wash-down, maintain proper oil pressure under load, and protect internal engine components from inadequate lubrication during extreme driving conditions. Each restrictor in this five-piece set features a precisely machined .090-inch orifice hole, manufactured to tight tolerances that ensure consistent oil flow characteristics across the engine's lubrication circuit.

Mechanics and engine builders working on Dart, Chevy 283, 327, 350, 383, and 427 small-block engines benefit most from this restrictor pack during camshaft upgrades, turbo conversions, or supercharger installations. The standardized orifice diameter allows tuners to match flow rates to specific bearing clearances and cam lobe designs, which are critical variables in forced-induction or high-RPM applications.