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1985 GMC Ignitions & Electrical

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Optima RedTop Starting 12-Volt Batteries

Optima RedTop Starting 12-volt batteries are the ultimate power source for cars, trucks, SUVs, hot rods, and other high-performance vehicles. They're engineered with unique Spiralcell technology, delivering a stronger burst of ignition power, while extending the battery life up to three times longer than conventional models. Maintenance-free RedTop AGM batteries are sealed, leak-proof, and resistant to vibrations—so you can mount them anywhere and in virtually any position on your vehicle. Order the Optima battery designed for your application, and expect a perfect start every time.

4.81 out of 5 stars ( 1532 )

$279.99

$319.99

Optima YellowTop Deep-Cycle 12-Volt Batteries

Optima YellowTop Deep-Cycle 12-volt batteries are high-performance, dual-purpose power sources. They're great for applications requiring repetitive amperage drain and quick recharging—like trucks with winches, commercial or public safety fleets, and vehicles loaded with electronics and accessories. YellowTops also power forklifts, tractors, and other heavy equipment. The maintenance-free AGM batteries deliver premium ignition starts, while sustaining high power levels even when system loads exceed the alternator output. Optima deep-cycle models are sealed, spill-proof, and can be mounted in most any position. They are far more resistant to vibrations than standard batteries, and will perform up to three times longer. For consistent power and faster recharges, order the YellowTop designed for your needs.

4.8 out of 5 stars ( 418 )

$319.99

$419.99

Powermaster Ultra Torque Starters

Powermaster Ultra Torque starters live up to their name by delivering 250+ ft.-lbs. of torque. They feature a machined aluminum adjustable mounting block, work with most oversized kickout oil pans, and work great for big cubic inch engines. The starters use a 2.5 kW, in a 3.4 hp motor.

4.43 out of 5 stars ( 246 )

$275.99

$361.99

On Sale

Holley Sniper EFI HyperSpark Distributors

Do you need to upgrade your ignition system due to a recent Sniper EFI installation, but have no idea which option is best? Introducing Holley Sniper EFI HyperSpark distributors. These billet distributors use a hall-effect crank signal sensor, providing a noise-free RPM signal to the Sniper ECU. HyperSpark distributors include a patented clear installation cap that eliminates any confusion when installing the distributor. They're an easy plug-and play solution to add timing control and complete your Sniper EFI installation. Many options are available; choose the model recommended for your year/make and engine application.

4.24 out of 5 stars ( 127 )

$460.95


$413.95

Odyssey Drycell Batteries

Odyssey sealed rechargeable drycell batteries provide high engine-cranking pulses and are capable of 400 deep cycles. They can be installed on their sides or at any angle and have a 2-year storage life at 25 degrees C.

4.86 out of 5 stars ( 231 )

$429.99

Moroso Ultra 40 Race Ignition Wire Sets

Moroso new Ultra 40 Race ignition wire sets are the most powerful and RFI/EMI-resistant wires available for racing today. Features of these 8.65mm wires include a Kevlar® core that's four times stronger than Aramid cores, a class-leading 40 ohms of resistance per foot, nickel copper alloy conductors for superior spark energy transfer, an extra-thick EPDM layer for greater dielectric strength, high-temperature silicone boots that can withstand heat up to 600 degrees, and locking stainless steel plug terminals. Plus, their closely woven fiberglass, silicone-impregnated insulation provides up to 8,000 extra volts of protection, and their extra-thick diameter extends wire life by adding additional insulation against heat, chaffing, and contaminants.

4.73 out of 5 stars ( 135 )

$266.99

$294.99

Top Street Performance Alternators

Whether it is for their great looks or their reliable high-amperage output, Top Street Performance alternators are great additions to your engine. TSP's alternators produce amperage outputs significantly above stock and are perfect for vehicles with a lot of accessories and equipment. These internally regulated units are available in serpentine or V-belt pulley styles with black or chrome finishes to complement your engine compartment.

4.41 out of 5 stars ( 29 )

$260.64

PerTronix Flame-Thrower Plug and Play Billet Distributors with Ignitor II® Module

PerTronix Flame-Thrower plug and play billet distributors with Ignitor II® module are designed to provide maximum ignition performance and easy installation, all at a price that you can afford. They allow you to upgrade your outdated points or stock electronic distributor with a performance-proven unit. The distributors feature the patented Ignitor II® electronic ignition module and a CNC-machined 6061 T-6 polished billet housing. PerTronix electronics are compatible with any inductive ignition system coil, but high-rpm performance can be improved when they are used with the low-resistance (0.6 ohm) Flame-Thrower II coil. Their stand-alone design makes them plug-in units that require no additional ignition, but they are compatible with multi-spark CD ignition boxes for outstanding versatility. Additional features include a tempered shaft, an upper roller bearing, and an oil-impregnated sintered bronze lower bushing. The PerTronix Flame-Thrower plug and play billet distributors with Ignitor II® module come with a factory-set performance curve, a mechanical advance limiting adjustment, and a small, high-dielectric strength cap and rotor for applications with little clearance.

4.22 out of 5 stars ( 363 )

$311.76

$464.15

Tilton Severe-Duty Super Starters

Tilton severe-duty Super Starters pack a lot of power into a compact package--a hefty 3.0 hp, in fact. That's enough to crank over just about anything, and they only weigh about 12 lbs. They feature full ball-bearing or needle-bearing construction that's little affected by heat or cold, and most are "clockable" for multiple choices of solenoid positioning. These starters are recommended for engines over 400 c.i.d., as well as high-compression V8s.

4.06 out of 5 stars ( 35 )

$433.50

On Sale

Holley EFI Dual-Sync Distributors

Precise timing control—Holley EFI dual-sync distributors are built with two Hall effect sensors for crankshaft and camshaft signals. The distributors can be used as just a crankshaft speed input or provide a camshaft sync signal for sequential fueling operation. They're also useful for crank and cam signals when running coil-on-plug applications. Dozens of models are available; order the one recommended for your vehicle/engine application. Some features of Holley EFI dual-sync distributors include: * CNC-machined billet aluminum housings with integrated LEDs for easy setup * Hardened steel distributor gear * Precision-machined shutter wheels that ensure accurate timing—even at very high RPM * Designed to be plug-and-play with Holley systems, but may be used with other EFI systems that support Hall effect crankshaft and camshaft sensors * Housings are available in a variety of finishes

3.35 out of 5 stars ( 37 )

$511.95

$549.95


$459.95

$493.95

MechMan S Series Alternators

MechMan S Series 6-phase alternators offer incredible output in a compact and durable package. The 240 amp models offer the best balance between peak output, and output at engine idle RPM; while the 320 amp models are all about max power and not designed to charge at low idle speeds. Both S Series alternators feature 12 diodes, twin rectifier plates, and outstanding airflow ensure long service life, even in severe conditions. These units come equipped with a smaller 1.75 in. diameter alternator pulley, and will require a slightly shorter drive belt to be installed for proper belt tension. Order the model recommended for your auto application.

4.55 out of 5 stars ( 33 )

$349.00

$469.00

CVR Protorque Maximum Starters

CVR Protorque Maximum starters with 3.1 hp and a 4.44:1 gear reduction ratio are sure to get your engine cranking with ease. They feature a unique aluminum housing to eliminate hot start problems and are adjustable (where applicable) to help clear suspension parts, oil pans, and exhaust systems. Protorque Maximum starters are sealed units with rubber O-rings and grommets and also have easily replaceable plungers and contacts.

4.32 out of 5 stars ( 22 )

$282.99

Odyssey Performance Series Batteries

Odyssey Performance Series batteries are designed to handle the increased use of on board accessories in today's vehicles. They combine long service life, high reliability, and deep cycle capabilities. Performance batteries provide all the reliability of the Odyssey Extreme Series batteries, without the high cold cranking amps or reserve capacity many people may not require. The Performance Series batteries contain flat plates made of 99.99 percent pure lead--not lead alloy, like many conventional batteries.

4.97 out of 5 stars ( 67 )

$315.92

$369.99

Powermaster Ultra Duty Diesel Starters

Upgrade your existing starter's performance with a new Powermaster Ultra Duty Diesel starter. These starters are stronger, faster, and tougher! They are able to turn over the most aggressive diesel engines in the harshest of environments. Featuring a 3.80:1 gear reduction, 260 ft. lbs. of torque and 3.6 horsepower these Powermaster Ultra Duty Diesel starters can handle anything.

4.67 out of 5 stars ( 248 )

$303.99

Summit Racing™ Protorque Starters

Summit Racing™ Protorque Starters are 100 percent new! Our lightweight Nippondenso-type starters offer a 4.0:1 gear-reduction ratio and a whopping 1.9 HP. That's 222 ft.-lbs of racecar cranking power. If that's not enough cranking power to suit you, there are even more powerful 3.1 hp monsters, which are a pound lighter! They have a 4.44:1 reduction ratio and churn out an awesome 342 ft.-lbs. of torque. Both of our Summit Racing™ powerhouses are suitable for engines up to 502 c.i.d., and compression ratios of up to 18.0:1. GM versions are adjustable for five mounting positions; Ford types, for 18. And, to prevent corrosion and electrical shorts, both starters wear a gold dichromate finish.

4.35 out of 5 stars ( 605 )

$299.99

PerTronix Flame-Thrower Plug and Play Billet Distributors with Ignitor III® Module

PerTronix Flame-Thrower plug and play billet distributors with Ignitor III® module offer the latest version of Pertronix's ignition modules. They include the patented Ignitor III® electronic ignition module and a CNC-machined 6061 T-6 polished billet housing. The Ignitor III® features adaptive dwell, which maintains peak energy throughout the entire rpm range, reduces misfires and improves engine performance. Peak current level is reached just prior to spark for maximum energy without the heat buildup and increased coil performance and module reliability. They adjust spark timing at higher rpm to compensate for the inherent electronic delay and increase energy for quicker, easier starting by sensing startup. The PerTronix Flame-Thrower plug and play billet distributors with Ignitor III® module have an integrated digital rev limiter with LED feedback for precise RPM setting and a memory safe function that stores settings eliminating unintended changes to the rev limit.

4.22 out of 5 stars ( 139 )

$363.49

$448.75

On Sale

MSD Pro-Billet Crank Trigger Distributors

MSD Pro-Billet crank distributors are built specifically for racing engines with almost no room for a distributor, due to tunnel rams or blowers. These units are equipped with a special low-profile crab-style distributor cap, allowing them to fit into extremely tight areas. The housing features two optional O-rings at the bottom that improves oil control by preventing oil pressure loss. Also, a small oil bleed hole (located in the base) sprays oil on the distributor and camshaft gears to prevent excessive wear. Since these are racing distributors, there is an adjustable slip collar to make up for engines that have had the distance between the mounting surface and the gear modified. Crowning the Pro-Billet crank distributor is MSD's own crab cap. This incorporates spark plug-style terminals for a better connection and grip to the plug wires. Order the model recommended for your vehicle and engine application.

4.15 out of 5 stars ( 20 )

$409.95


$367.95

FAST Dual-Sync Billet Distributors

These FAST dual-sync billet distributors are an easy, drop-in, plug-and-play solution for fully sequential high performance V8 electronic fuel injection engine applications. They feature reluctors and pickups that have been properly aligned right out of the box, so you don't have to set crankshaft reference angles or phasing in the rotor prior to installation. The FAST dual-sync billet distributors have housings that are CNC-machined from high-quality 6061-T6 billet aluminum and include adjustable slip collars to ensure perfect cam gear alignment. Using high-output magnetic pickups to generate high-capacity, noise-resistant, discrete switching signals for the FAST XFI ECU, they offer extremely precise ignition timing and long life. Deliver strong, powerful energy to your spark plug wires with one of these FAST dual-sync billet distributors.

4.0 out of 5 stars ( 28 )

$429.95

Chevrolet Performance High Torque Mini Starters

These mini starters from Chevrolet Performance feature a compact design that delivers plenty of torque and increased clearance for extended oil pans and header exhaust systems. These lightweight and powerful starters rely on a 3.75:1 gear reduction to spin a high-compression engine.

4.06 out of 5 stars ( 17 )

$418.29

$442.03

On Sale

Summit Racing™ Reproduction Wiring Harnesses

Summit Racing™ offers reproduction wiring harnesses for a wide selection of vehicles, particularly classic cars and trucks from the 1960s and '70s. These replacements and/or extensions are used to power a variety of applications—including horn, glove box, console, backup lights, engine; forward, hood, and courtesy lamps; fuel tank sender, and more. These OE style replacement harnesses are made of high-quality Automotive Grade Wire using factory style fuse blocks, plug ends, and wire colors to ensure factory type fit, performance, and durability. For repair or restoration, order the harness recommended for your specific car or truck. Note: These harnesses are factory replacements and do not include instructions or wiring diagrams refer to the factory diagrams and or service manuals for your specific vehicle.

4.43 out of 5 stars ( 60 )

$277.99

$286.99

FAST XDi EZ-RUN Distributors

FAST XDi EZ-RUN distributors are convenient packages that save time and space. These units do not require an ignition box to fire the coil, and their standard-size caps offer more firewall and manifold clearance than HEI-style distributors. XDi EZ-RUN billet distributors feature mechanical and vacuum advance for easy setup and use. They also feature a built-in electronic module that can directly fire an ignition coil, while delivering accurate, dependable, and maintenance-free operation. Ideal for both carbureted and EFI conversion engines, EZ-RUNs are a perfect choice for daily drivers, musclecars, and street rods. FAST XDi EZ-RUN distributors are available for most domestic V8 applications. Choose the model designed for your year/make and engine application.

5.0 out of 5 stars ( 2 )

$297.95

PerTronix Flame-Thrower Race HEI Distributors

Flame-Thrower Race HEI distributors from PerTronix produce 42 percent more energy in the coil, with 46 percent faster spark breakdown time. This allows 48 percent more peak current to reach the spark plug, compared to their Street/Strip HEI distributors. That's an enormous improvement over stock HEIs and most aftermarket HEI distributors. A specially designed vacuum lockout mechanism prevents timing adjustments that change rotor phasing, adversely affecting the burn time and efficient fuel combustion. The rotor plates are TIG-welded to the mechanical advance mechanism, preventing high-rpm distortion and improving mechanical reliability. Each distributor uses a new aluminum housing cast and is machined from a strong, but lightweight A384 alloy. They're supplied with a high-dielectric strength cap with solid brass terminals, a balanced rotor, and a low-resistance center coil brush. Also included are nylon rotor hold-down screws and a factory-installed, high performance mechanical curve kit with precision-machined weights and a center plate. A hardened, machined steel gear is standard, along with an electronic module and coil combination that excels in the 6,000 to 8,500 rpm range. These distributors are great for both Circle Track and drag race applications where factory-type HEI distributors are mandated.

3.78 out of 5 stars ( 9 )

$414.80

Tuff Stuff Performance MAX AMP Output Alternators

Tuff Stuff Performance offers MAX AMP output alternators for thousands of vehicles, including cars, trucks, and vans from Ford, Lincoln, Mercury, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, and Jeep. Hand-built in Cleveland, Ohio and tested to meet or exceed OEM specifications, all Tuff Stuff alternators are assembled from 100 percent new components. They're designed for 12 V, negative ground systems (except where noted). These replacements are chrome plated, include an internal voltage regulator, and are available with a one-groove V-belt pulley or 6-groove serpentine belt pulley. Order the model recommended for your application.

Not Yet Reviewed

$479.99

$482.99

Powermaster Race Alternators

Powermaster race alternators supply horsepower for your ride by ensuring the electrical and ignition systems have enough voltage to operate properly. This means your battery stays fully charged and predictable—you don't have to worry about your car not starting at race time. They feature a variety of high-amperage ratings, one-wire hookup, a gold battery post, and a heat-dispersant coating. Some models also include a pulley. Order the alternator designed for your vehicle application.

4.52 out of 5 stars ( 106 )

$310.99

$311.99