Hi, up for sale I have a Beautiful Genuine MSD original 1995-1997 LT1 or LT4 & L99 Optispark distributor. This item is extremely difficult to find also the best one of the best aftermarket distributor for an Optispark equipped vehicle with an LT1 or LT4 and even a L99 engine Part came out of a running and driving 1997 Pontiac Formula Firebird/Firehawk 6-speed with a LT1 V8 with 55K. This the Correct distributor for the late model 1994 to 1997 cam/pin driven opti-sparks vented style Distributor. Will fit All 1995-1997 automatic or manual LT1 or LT4 V8 engine vehicles. Item comes as pictured with complete distributor unit. Item was in good working order when pulled but this is a electrical item and is being sold as is where is. So please no returns are accepted. Recommend new Distributor cap due to showing its age & mileage see pics. Cap has some scratches on the outside. Please ask all the questions prior to purchasing as we do have a NO return policy. View all pics what you see is exactly what you will receive. With that being said we have great feedback from our customers on eBay. So buy with confidence. GM Vented Pin-Drive Optispark Distributor for LT1 5.7L V8, removed from a running and driving 1997 Pontiac Formula Firebird Firehawk. Has the legendary sought after (MSD Performance) Distributor cap does have a cosmetic wear mark where the coil wire attaches but still works fine and won’t be seen once wire is installed. . Do not make the mistake of buying a cheap aftermarket Optispark Distributor that may arrive dead on arrival or fail shortly after installed. This Factory OEM MSD unit has been cleaned, inspected, and reassembled with Loctite applied to the rotor screws (to prevent them from coming loose, as experienced by many Optispark owners). Assembled and ready to use. Will fit all 1995-1997 LT1, LT4 & L99 equipped vehicles. Feel free to message me with any questions or concerns regarding the product, or your other F-body needs. Free shipping! Item will be shipped via USPS or Fedex or UPS it is your responsibility to make sure you have a valid address where they may deliver your item. (Please note this has a aftermarket sensor connector. That may require you to cut and solder your OEM connector)
Application Guide For the following LT1 or LT4 or L99 engines :
1995-1996 Buick Roadmaster 5.7L, LT1
1995-1996 Cadillac Fletwood Brougham 5.7L, LT1
1995-1997 Chevrolet Camaro, Z28, SS 5.7L, LT1 or LT4
1995-1996 Chevrolet Caprice & Chevrolet Impala, SS Impala 5.7L, LT1 or L99 4.3L (Caprice option only)
1995-1997 Pontiac Firebird, Formula, Trans Am, Firehawk 5.7L, LT1 or LT4
1995-1996 Chevrolet Corvette 5.7L, LT1 or LT4
Please email any questions , (Free) shipping Thanks!!!
GM LT1 5.7L DISTRIBUTOR LATE MODEL, 94-97
Late Model 94-97 GM LT1 Optispark performance replacement, with pin drive
OVERVIEW
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.
Features:
Advanced optical encoder trigger design for accuracy and reliability.
Rotor drive design is positively indexed and cannot slip.
Large ball bearing stabilizes timing through 10,000 rpm.
Fresh air vented and sealed to keep the elements out.
Improved housing design and extra bolt eliminates leaks
Easily adjust the timing up to +/-5°.
About MSD
From small block street cruisers to 10000 horsepower top fuel dragsters, MSD's ignition systems has been the industry leader for over 40 years. MSD continues to push the envelope with cutting-edge ignition technology as well as intake manifolds and EFI systems.
Description
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. Once installed, you have the ability to adjust the ignition timing - the only distributor that offers timing adjust ability. 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. The distributor is supplied complete with our heavy duty lt1 cap, rotor and the components required for installation.
Features & details
Advanced optical encoder trigger design for accuracy and reliability
Easily adjust the timing up to +/-6 Degree
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
Product information
Manufacturer MSD Ignition
Brand MSD
Item Weight 3.8 pounds
Product Dimensions 4 x 9.3 x 12.3 inches
Item model number 8381
Is Discontinued By Manufacturer No
Manufacturer Part Number MSD-8381
OEM Part Number 8381
MSD Distributor 83811; Pro Billet Optispark Comp-Controlled for 94-
97 Chevy LT1
Distributor Model or Series: Pro Billet Optispark
Year: 1994-1997
Make: Chevy
Engine: LTI
Trigger Type: Optical
Advance Type: Computer-Controlled Advance
Cap Style: Crab Cap
Cap Color: Red
Housing Material: Billet Aluminum
Housing Finish: Natural
Requires Ignition Box: No
Distributor Shaft Diameter: 500"
Cap Diameter: 6.110"
Compatible with Computer Control: Yes
Rotation: Standard
Includes Ignition Coil: No
Quantity: Sold As Each
• Rotor trive design is positively indeed for canosyand reliability.
• Large ball bearing stabilizes timing through 10,000 pm.
: Improved outsia de saent extra bit eliminates leaks
• Easily adjust the timing up to +/-5°.
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
cap to eliminate leaks. The distributor is supplied complete with our heavy duty LT1 Cap, Rotor and the components required for installation.