Allstar Performance ALL90072 - Manual

Allstar Performance 8300 Lane Dr., Watervliet, MI 49098
Phone: (269) 463-8000 Fax: (800) 772-2618 www.allstarperformance.com
Form 1113 Page 1 of 1 Rev. 121411
Dart SBC SHP Oil Restrictors
installation instructions
ALL90072
Restrictors for use in Dart SBC SHP blocks are specifically designed for the priority main oil system to reduce
the amount of oil flow to the top of the engine, reducing the risk of evacuating the oil pan in continuous
high rpm engines. Restrictors are for use with stock type, standard volume oil pump.
1. Insert restrictors in the front of the block. Use image below to identify proper location.
2. Do not apply teflon tape or thread sealer to restrictors, apply oil to threads and install until snug.
Threads may be staked to prevent loosening but is not required.
3. Starting with the long restrictor, apply lube to O-ring, install restrictor into lifter galley Hole #1
as identified in diagram. Use caution not to damage O-ring.
4. Install short restrictor in Hole #2 as identified in image below.
5. Restrictors should be visible in lifter oil galley while looking into exhaust lifter bores but
should not protrude into lifter bores.
Hole #1
(Long Restrictor)
Hole #2
(Short Restrictor)
Main Oil Galley