SKU: 95510315418

HP Copper Spark Plug - Shorty - 0574S-4

Sale price$24.72 Regular price$27.47
Save 10%

Pay in installments of $6.87 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 31 - Aug 5

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

HP Copper Spark Plug - Shorty - 0574S-4Overview: 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

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
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 95510315418

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.8 ★★★★★
Based on 13 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
J
Verified Purchase
john l fields
Lexington, US
★★★★★ 5
Good product at a good price
Style: 80 mil 36 sqft
This product works great and easy to install. I do two or more vehicles a month. I switch to this brand a year ago and would recommend to everyone of my customers
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
N
Verified Purchase
napoli
Birmingham, US
★★★★★ 4
Good deal for the price
Style: 80 mil 18 SqFt
The product is good and contrary to some comments I read it was not a mess to install and went on very nicely. That said I placed on a 71 Baracudda and starting from a 71db I was able to drop that down to about 66 with two layers Kilmatt 80mil
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
F
Verified Purchase
#1 Ford
Pawtucket, US
★★★★★ 5
Kilmat Car Sound Deadening Mats
Style: 50 mil 25 SqFt
Easy to install in a vehicle! Helps keep the heat out as well as keeping it quieter inside my car. Self sticking to the inside of the roof without strong smelling adhesives. The quality of these pieces work very well in my vehicle!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
J
Verified Purchase
Jonathan Robledo
Grantham, US
★★★★★ 5
Excellent Sound Deadening Material!
Style: 10 SqFt, Style: 10 SqFt
I installed Kilmat Sound Deadening in my truck, and I’m extremely impressed with the results. The material is thick, pliable, and easy to cut to fit doors, floor panels. It sticks very well to metal surfaces and doesn’t peel, even after heating it slightly to make it more flexible. After installation, I immediately noticed a reduction in road noise and vibrations. Worth the money!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 4, 2026
J
Verified Purchase
Jare
Port Orchard, US
★★★★★ 5
A Must Have For Car Restorations!
Style: 80 mil 36 sqft, Style: 80 mil 36 sqft
I have been installing this matting in my 74 Datsun 260Z restore and very pleased with the ease of application and overall quality. My car has bedliner coating inside and this stuff sticks extremely well and is easy to trim and shape as well. I have just started installing it and using the rollers to work it in place but I can already tell a difference with just the little bit I have added....has reduced the resonance in the metal already. It's not a fast process but know it will be very rewarding once complete.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026

recommand products