HP Copper Spark Plug - Shorty - 0574S-4
HP Copper Spark Plug - Shorty - 0574S-4
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Overview:
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
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| 1981 - 1986 | Chevrolet | Chevette | 98/1.6 L4 | |
| 1982 | Chevrolet | Chevette | Base | 98/1.6 L4 |
| 1982 | Chevrolet | Chevette | Scooter | 98/1.6 L4 |
| 1980 - 1981 | Ford | E-350 Econoline Club Wagon | 460/7.5 V8 | |
| 1975 | Ford | F-150 | 460/7.5 V8 | |
| 1975 | Ford | F-250 | 460/7.5 V8 | |
| 1975 | Ford | F-350 | 460/7.5 V8 | |
| 1975 - 1980 | Ford | E-250 Econoline | 460/7.5 V8 | |
| 1975 - 1981 | Ford | E-250 Econoline Club Wagon | 460/7.5 V8 | |
| 1975 - 1981 | Ford | E-350 Econoline | 460/7.5 V8 | |
| 1992 | GMC | C2500 Suburban | SLE | 454/7.4 V8 |
| 1994 - 1995 | GMC | C2500 Suburban | 454/7.4 V8 | |
| 1992 - 1995 | Chevrolet | K2500 Suburban | 454/7.4 V8 | |
| 1988 - 1995 | Chevrolet | K3500 | 454/7.4 V8 | |
| 1991 - 1995 | GMC | K2500 | 454/7.4 V8 | |
| 1994 - 1995 | GMC | K2500 Suburban | 454/7.4 V8 | |
| 1988 - 1995 | GMC | K3500 | 454/7.4 V8 | |
| 1987 - 1989 | GMC | R2500 | 454/7.4 V8 | |
| 1990 - 1992 | Chevrolet | C1500 | Silverado | 454/7.4 V8 |
| 1990 - 1992 | Chevrolet | C1500 | 454 SS | 454/7.4 V8 |
| 1990 - 1992 | Chevrolet | C1500 | WT | 454/7.4 V8 |
| 1990 - 1992 | Chevrolet | C1500 | Cheyenne | 454/7.4 V8 |
| 1993 | Chevrolet | C1500 | 454/7.4 V8 | |
| 1991 - 1995 | Chevrolet | C2500 | 454/7.4 V8 | |
| 1989 - 1995 | GMC | G3500 | 454/7.4 V8 | |
| 1996 | GMC | G3500 | Rally | 454/7.4 V8 |
| 1996 | GMC | G3500 | Rally STX | 454/7.4 V8 |
| 1996 | GMC | G3500 | Vandura | 454/7.4 V8 |
| 1996 | GMC | G3500 | Magnavan | 454/7.4 V8 |
| 1990 | Chevrolet | C1500 | Scottsdale | 454/7.4 V8 |
| 1988 - 1995 | GMC | C3500 | 454/7.4 V8 | |
| 1991 - 1995 | GMC | C2500 | 454/7.4 V8 | |
| 1992 | GMC | C2500 Suburban | Base | 454/7.4 V8 |
| 1992 - 1995 | Chevrolet | C2500 Suburban | 454/7.4 V8 | |
| 1988 - 1995 | Chevrolet | C3500 | 454/7.4 V8 | |
| 1987 - 1988 | Chevrolet | V30 | 454/7.4 V8 | |
| 1989 - 1991 | Chevrolet | V3500 | 454/7.4 V8 | |
| 1987 - 1991 | GMC | V3500 | 454/7.4 V8 | |
| 1987 - 1988 | Chevrolet | R20 | 454/7.4 V8 | |
| 1987 - 1988 | Chevrolet | R20 Suburban | 454/7.4 V8 | |
| 1989 | Chevrolet | R2500 | Cheyenne | 454/7.4 V8 |
| 1989 | Chevrolet | R2500 | Scottsdale | 454/7.4 V8 |
| 1989 | Chevrolet | R2500 | Silverado | 454/7.4 V8 |
| 1989 - 1991 | Chevrolet | R2500 Suburban | 454/7.4 V8 | |
| 1987 - 1988 | Chevrolet | R30 | 454/7.4 V8 | |
| 1989 - 1991 | Chevrolet | R3500 | 454/7.4 V8 | |
| 1987 - 1988 | Chevrolet | V20 Suburban | 454/7.4 V8 | |
| 1990 | Chevrolet | V2500 Suburban | 454/7.4 V8 | |
| 1987 - 1991 | GMC | R2500 Suburban | 454/7.4 V8 | |
| 1987 - 1991 | GMC | R3500 | 454/7.4 V8 | |
| 1988 - 1995 | Chevrolet | G30 | 454/7.4 V8 | |
| 1996 | Chevrolet | G30 | Beauville | 454/7.4 V8 |
| 1996 | Chevrolet | G30 | Chevy Van | 454/7.4 V8 |
| 1996 | Chevrolet | G30 | Sportvan | 454/7.4 V8 |
| 1996 | Chevrolet | G30 | Hi-Cube | 454/7.4 V8 |
| 1991 - 1995 | Chevrolet | K2500 | 454/7.4 V8 | |
| 1975 | Chrysler | Newport | 440/7.2 V8 | |
| 1975 | Dodge | Coronet | Base | 440/7.2 V8 |
| 1975 | Dodge | Monaco | 440/7.2 V8 | |
| 1975 | Dodge | Royal Monaco | 440/7.2 V8 | |
| 1971 - 1972 | Ford | Galaxie 500 | 429/7 V8 | |
| 1971 | Ford | LTD | 429/7 V8 | |
| 1970 - 1971 | Ford | Mustang | Base | 429/7 V8 |
| 1970 - 1971 | Ford | Mustang | Mach 1 | 429/7 V8 |
| 1970 - 1971 | Ford | Mustang | Grande | 429/7 V8 |
| 1971 | Ford | Ranch Wagon | 429/7 V8 | |
| 1970 - 1971 | Ford | Ranchero | 429/7 V8 | |
| 1970 | Mercury | Cyclone | Spoiler | 429/7 V8 |
| 1971 | Mercury | Cyclone | 429/7 V8 | |
| 1971 | Mercury | Marquis | Base | 429/7 V8 |
| 1971 | Mercury | Marquis | Brougham |

Policies and FAQs
Return Policy
Fault reasons include but are not limited to:
- Buyer was shipped the wrong product
- Buyer was shipped a damaged product
- The product page had incorrect fitment and the part does not fit the Buyer's vehicle
Opened boxes, plastic bags, and other packaging are not considered damage (excluding single use items such as, but not limited to, liquids, software, and other components that cannot be reused/resealed).
FAQs
|Q. What is an Intermediate Brake Line?
|A. This is the line that runs from the front of the vehicle to the rear. On most vehicles it connects to a junction then you will have rear axle lines. On a few cars the intermediate lines will connect to the rear wheels. It is recommended to change the axle lines if you are replacing the intermediate lines.
|Q. What is included in a pre bent brake line kit?
|A. Our kits include all of the solid metal lines for that section of the vehicle
|Q. I need to return something - what's your return policy?
|A. We are happy to help! Please help us to help you by going to our return form and filling out the form as best as you can in order to request a return.
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Modern Day stands by our parts and is happy to accept returns within 30 days of purchase. Parts must be in new condition.
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If a part arrives damaged, or is defective, Please report it to us immediately. So we can handle it for your promptly.