1991 Mercury Grand Marquis Performance Coils

Top off your GM ignition system with these great new replacement coils. The GM coils have MSD performance in factory style housings. MSD designed these coils by combining our blaster coil experience with e-core coil efficiency. Each coil has a unique turns ratio plus there is lower primary resistance than the stock coil. This all amounts to a bolt-in replacement coil that produces more output voltage. The coils will work with stock ignition systems as well as MSD equipped cars and trucks. Installation tip: If you plan to install an MSD ignition with your GM dual connector coil, use PN 8876 harness for a direct plug-in installation.

Product Features:

• Direct performance replacement for Ford TFI coil
• 85:1 turns ratio
• Lower Primary Resistance Produces High Voltage Output
• Works w/Stock Ignition As Well As MSD Ignitions
• CARB E.O. Approved

Engineered to be the only true performance Ford 4-tower style EDIS coil. Advanced bobbin technology, highly specialized silicone magnetic steel core, optimized winding, resistance, and turns ratio result in higher energy and voltage outputs, and longer arc duration. Direct OEM replacement. Must use factory firing order. Compatible with Ford EDIS computer controlled ignition system as well as Crane or MSD capacitive discharged (CD) DIS ignition systems. Special high temperature epoxy resists shock and vibration, while increasing thermal conductivity. Secondary towers molded in high dielectric strength ACCEL Yellow. Packaged as single unit: 4 cyls require 1 coil pack, “”twin plug”” 4 cyls require 2 coil packs and 8 cyls require 2 coil packs. No tsuitable for some late 1999 applications.

Product Features:

• 10-15% More Energy
• Direct Plug In Replacement Direct OE Fit
• Advanced Bobbin Technology
• Highly Specialized Silicone Magnetic Steel Cores
• Standard Motor Products SMP Fd-487
• MSD 8241