Features
- 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.
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.
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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.
User Instructions:




| Recent reviews: |
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By Anonymous cool dist made big diff.going to play with the timing . simple hoohk up. r allen |
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By Anonymous |
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By Anonymous Installed this on my 1994 firebird LT1-350 the wiring harness is incorrecr and needs a listing . The distributor listed for a 1994 Firbird formula is also incorrect they want you to buy a GM Late Model HEI V8 Ext Coil Distributor Part No. 8366 which will not fit. Anyone with a simple mind can tell the difference between an optispark and a drop in type distributor. I can't believe it. I am wondering what has happened to the old school people that knew parts versus cah register dummies that just want to know what the price is so they can scan it and get you out of their line. What has happened to customer service is beyond me. I can tell that this will be an unpleasant experience now I will have to call in to get the right friggin adapter and be given the wrong one about 3-4 times before I get someone that knows what they are doing. I will post what happens when I call in. There is also no mention anywhere of the electrical adapter that is needed. the one that comes off of this 8381 MSD unit is male. the ada |




