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Made from Billet 6061 Aluminium we have managed to make the unit smaller which in turn allows more oil flow
RPM operating range 1800 - 6000 Duration advertised Inlet 274°
regardless of whether it gets a gulp of air when the off-tank is low
then hardened and tempered
AR203-4203
Oil Restrictor Screw In Type - .055" Orifice CO4917 Weld On Filler Necks Made from Billet 6061 AluminiumOil Restrictor Screw In Type . 055" OrificeSuit Small & Big Block Chevy CO4917 4917 When building a high performance engine with a solid or solid roller cam, it is necessary to meter the amount of oil going through the lifters and up to the rocker arms. Too much oil to the top will starve the main and rod end bearings and cause engine failure. These oil restrictors are simple and easy to use.
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