ACCEL's patented race proven spark plugs in a Shorty configuration. The overall length has been reduced 3/16 in to 3/8 in (depending on the specific spark plug) to gain critical air gap between the spark plug boot and the exhaust manifold or header tube. This helps eliminate burning the spark plug boot or dimpling the header tube. The shorter spark plug length also can make it easier to install an remove the spark plugs in certain applications where there is not a lot of room to fit a socket or move a wrench around. ACCEL Shorty Spark Plugs are made with a Copper core which is a better conductor than Platinum and Iridium. They deliver a stronger spark especially in high performance applications where high combustion pressures are present. Copper is much better at dissipating heat than other materials which lessens the chance of a misfire. ACCEL Shorty Spark Plugs are gapable allowing you to open the gap exposing a larger flame kernel or close it if needed for high boost applications. All ACCEL Shorty Spark Plugs have machine rolled threads allowing for a more precise thread engagement and torque retention.
Features:
- Shorty Spark Plugs For Tubular Exhaust Headers
- Eliminates Dimpling Headers For Added Clearance
- Improves Spark Plug Access To Fit Socket Or Wrench
- Shorter Overall Plug Length Vs. OE Style Plug
- Copper Core Center Electrode
- Projected Tip
- Helps Eliminate Burned Spark Plug Boots
- Shorty Header Spark Plug
****Not Compatible with 90 Degree Ceramic Plug Wire Boots****
Installation Notes:
****Not Compatible with 90 Degree Ceramic Plug Wire Boots****
About Accel Performance Group
For more than 40 years, ACCEL has been a leader in performance fuel and ignition systems, proving itself on the racetracks and drag strips of the world – and on the street. With an ever-expanding line of SuperCoils and all the spark plug wires, tune-up kits, and fuel injectors hot rodders have trusted and relied on for years, ACCEL is constantly developing innovative new products designed to push power, speed, and performance to match advancements in automotive technology. Now part of Holley Performance, ACCEL offers a comprehensive selection of performance products, including coils, digital fuel injection systems, fuel injectors, distributors, caps, rotors, ignition wires, spark plugs.
Vehicle Fitment:
The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
| Make |
Model |
Years |
Engine |
Fitment Notes |
| Chevrolet |
Corvette |
1971 |
7.4L / 454 / V8 |
U-GROOVE SPARK PLUG; HEADER PLUG; 14MM THREAD; .460 IN. REACH; HEAT RANGE 6; TAPERED SEAT; 5/8 HEX; PROJECTED TIP; RESISTOR; 4 PACK; 0.030 IN. PLUG GAP; |
| Chevrolet |
Corvette |
1980 |
5.0L / 305 / V8 |
U-GROOVE SPARK PLUG; HEADER PLUG; 14MM THREAD; .460 IN. REACH; HEAT RANGE 6; TAPERED SEAT; 5/8 HEX; PROJECTED TIP; RESISTOR; 4 PACK; 0.030 IN. PLUG GAP; |
