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.

• 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 distributor is supplied complete with our heavy duty LT1 Cap, Rotor and the components required for installation.
• 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 Degree. The distributor is equipped with a fresh air vent and has an extra thick mounting surface for the cap to eliminate leaks.
• Easily adjust the timing up to +/-5 Degree.
• Large ball bearing stabilizes timing through 10,000 rpm.
• Rotor drive design is positively indexed and cannot slip.
• Improved housing design and extra bolt eliminates leaks.
• Fresh air vented and sealed to keep the elements out.
• Advanced optical encoder trigger design for accuracy and reliability.

Details:

• Distributor Cap Included: Yes
• Distributor Type: OE Replacement
• Emission Code: 4
• Ignition Box Required: No
• Ignition Coil Included: No
• Ignition Rotor Included: No
• Application: 1992 thru Early 1994
• Warranty: Manufacturer's Limited 1 Year Warranty