Oil Restrictors Bowtie Block Chevy 1pr

The Oil Restrictors Bowtie Block Chevy 1pr from ALLSTAR PERFORMANCE is a precision engine component designed for small-block Chevrolet applications where oil flow management is critical to engine longevity and performance. Built for serious engine builders and high-performance enthusiasts, these restrictors serve as essential flow control devices in forced-induction and racing setups where turbochargers, superchargers, or high-RPM operation demands precise oil delivery to bearing surfaces. This pair delivers the reliability needed during countless seasons of demanding engine duty.

Manufactured from stainless steel with allen-head fasteners, the Oil Restrictors Bowtie Block Chevy 1pr features a bowtie-shaped orifice design engineered to meter oil flow with precision. The stainless construction resists corrosion and maintains dimensional stability under sustained high temperatures and pressure cycling—critical for forced-induction engines or naturally aspirated applications running extended high-RPM sessions. Each restrictor is CNC-machined to ALLSTAR PERFORMANCE's exacting tolerances, ensuring consistent flow rates across the pair and eliminating performance variables tied to inconsistent oil supply.

Engine builders installing turbo or supercharger kits on small-block Chevy platforms benefit most from this restrictor pair, as proper oil management prevents bearing starvation during boost cycles and extends engine lifespan under stress. Installation is straightforward—the allen-head design allows tool-friendly removal and service. The compact 4 x 0.85 x 7.05-inch footprint fits standard small-block locations without modification. For any serious engine build demanding reliability in high-performance or racing environments, the Oil Restrictors Bowtie Block Chevy 1pr remains an industry-standard component for oil management.