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#5478381

MSD 8381 GM LT-1 5.7L 93-94 Distributor

GM LT-1 5.7L 93-94 Distributor
Spline Drive

$849.95

/each

Factory Shipped

$899.95

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Product Summary

Crab Cap Type, Electronic Advance Type, Red, Natural

GM LT-1 5.7L 93-94 Distributor
Spline Drive

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Key Specs

MFG. Part #	8381
Brand	MSD
Cap Type	Crab
Advance Type	Electronic

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MSD 8381 Details

Leave it to MSD to build an all-out performance distributor to replace the OEM GM LT1 Optispark! We machine an entire billet block of aluminum down into a precise housing that fits in place of the factory piece. Then, we fill it with a reliable new pick-up assembly, a trick timing adjustment mechanism and top it off with an all new MSD distributor cap! The pick-up is an advanced optical encoder, a different style of optical pickup than the OEM. This type of pick-up has proven to be very reliable and stable through extreme rpm and conditions. The rotor is bolted to a drive assembly that is indexed to the shaft and is stabilized through the use of a large ball bearing assembly. Once installed, you have the ability to adjust the ignition timing “ the only distributor that offers timing adjustability! An adjustment screw allows the timing to be tweaked up to /-5°. The distributor is equipped with a fresh air vent and has an extra thick mounting surface for the cap to eliminate leaks. The distributor is supplied complete with our heavy duty LT1 Cap, Rotor and the components required for installation.

Advanced optical encoder trigger design for accuracy and reliability.
Easily adjust the timing up to /-5°.
Improved housing design and extra bolt eliminates leaks.
Fresh air vented and sealed to keep the elements out.
Large ball bearing stabilizes timing through 10,000 rpm.
Rotor drive design is positively indexed and cannot slip.
For 92-94 LT1 engines, supplied with fresh air hoses.
Incorporates our own trigger wheel and digital encoder. This trigger process is much more reliable and accurate through high rpm.
For 92 Corvette owners: For a splice-free installation, get the adapter harness here.

Charts

Installation Instructions (PDF)

Guides & Documents

Distributors Installation Instructions (5478381)

CARB Warning

For race/ off road use only

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

CARB warning

MSD 8381 Specifications

KEY SPECS
MFG. Part #	8381
Brand	MSD
Cap Type	Crab
Advance Type	Electronic

GENERAL
External Ignition Box Required	No
Trigger Style	Optical
Hall Effect	No
Sync Signal	No
Trigger Sensors	Single
Gear Rotation	Standard
Distributor Cap Color	Red
Ignition Box Required	No
Mechanical Tach Drive	No
Slip Collar	No
Housing Material	Billet Aluminum
Housing Finish	Natural
Marine Use	No
Sold in Quantity	Each
Notes	This distributor replaces the Optispark I non-vented, spline drive style OEM distributor only. Includes components to convert to a vented distributor. If using this distributor on a 1992 Corvette please see suggested parts for recommended harness.
GTIN Code	085132083817

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