CNPAPC iridium spark plugs set of eight for reliable ignition.
CNPAPC spark plug wires nine-piece kit for smooth power delivery.
CNPAPC engine compatibility chart for GM SBC and BBC V8 engines.
CNPAPC OEM part numbers 93440806 SP425 for quick verification.
CNPAPC durable wires close-up with high-temp silicone jacket.
CNPAPC iridium electrode close-up showing fine-wire design.
CNPAPC easy installation guide indicating direct fit.
CNPAPC 12-month warranty seal for added peace of mind.
CNPAPC package front view showing complete kit contents.
CNPAPC iridium spark plugs set of eight for reliable ignition.
CNPAPC spark plug wires nine-piece kit for smooth power delivery.
CNPAPC engine compatibility chart for GM SBC and BBC V8 engines.
CNPAPC OEM part numbers 93440806 SP425 for quick verification.
CNPAPC durable wires close-up with high-temp silicone jacket.
CNPAPC iridium electrode close-up showing fine-wire design.
CNPAPC easy installation guide indicating direct fit.
CNPAPC 12-month warranty seal for added peace of mind.
CNPAPC package front view showing complete kit contents.

CNPAPC 8 Iridium Spark Plugs & 9-Wire Kit for GM SBC & BBC V8 Engines

Complete ignition upgrade for GM SBC and BBC V8 engines Upgrade your GM small-block or big-block V8...
Vendor: CNPAPC
Availability: In stock
£73.61
£73.61
Please hurry! Only 5 left in stock
Subtotal: £73.61
10 customers are viewing this product

Free UK Delivery on All Orders

No Minimum Spend Fast & Reliable Delivery Ships Across the UK

Free Returns

30-Day Free Returns
CNPAPC iridium spark plugs set of eight for reliable ignition.

CNPAPC 8 Iridium Spark Plugs & 9-Wire Kit for GM SBC & BBC V8 Engines

£73.61
CNPAPC iridium spark plugs set of eight for reliable ignition.
CNPAPC spark plug wires nine-piece kit for smooth power delivery.
CNPAPC engine compatibility chart for GM SBC and BBC V8 engines.
CNPAPC OEM part numbers 93440806 SP425 for quick verification.
CNPAPC durable wires close-up with high-temp silicone jacket.
CNPAPC iridium electrode close-up showing fine-wire design.
CNPAPC easy installation guide indicating direct fit.
CNPAPC 12-month warranty seal for added peace of mind.
CNPAPC package front view showing complete kit contents.

CNPAPC 8 Iridium Spark Plugs & 9-Wire Kit for GM SBC & BBC V8 Engines

£73.61
Description
Description
x

Complete ignition upgrade for GM SBC and BBC V8 engines

Upgrade your GM small-block or big-block V8 with the CNPAPC 8 Iridium Spark Plugs and 9-Wire Kit. This ready-to-install set brings together precision-engineered ignition components designed for direct fit and dependable performance across a range of Chevrolet and GM platforms.

Inside the kit you’ll find eight iridium spark plugs and nine spark plug wires, each chosen for consistent voltage delivery and long-term durability. The combination aims to deliver smooth starts, steady idle, and clean combustion in everyday driving and classic car projects.

Why this kit stands out

  • Premium iridium plugs for reliable ignition and extended service life
  • Durable wires with a dual high-temp silicone jacket and fiberglass reinforcement for moisture and heat resistance
  • Resistant to wear and corrosion, helping maintain connection integrity over time

Fitment and compatibility

  • Chevy SBC and BBC V8 engines: 262, 265, 283, 302, 305, 307, 327, 350, 383, 400 cu in (SBC); 366, 396, 402, 427, 454, 502 cu in (BBC)
  • Compatible with a variety of GM models including Buick, Oldsmobile, Pontiac applications listed in the product notes

OEM references and verification

  • OEM parts: 93440806 and SP425
  • For best results, confirm fitment via pictures or your VIN before purchase

Installation, testing, and warranty

  • Direct-fit design that installs with common hand tools and without special programming
  • Each set is tested before shipping to ensure quality
  • Backed by a 12-month warranty for added peace of mind

Real-world use and potential benefits

Users often appreciate easier starts, smoother idle, and more confident throttle response when upgrading to iridium plugs paired with a reliable wire kit. This combo is well suited for classic restorations, daily drivers, and weekend builds alike.

FAQ

Q: Is this kit compatible with my GM SBC or BBC V8 engine?

A: Yes, designed for GM SBC and BBC V8 engines listed; verify with VIN or compare images to confirm fit.

Q: What’s included and what warranty is provided?

A: Includes 8 iridium spark plugs and 9 spark plug wires; tested before shipping and backed by a 12-month warranty.

Shipping & Return
Shipping & Return
x

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

Complete Your Setup

Example product title
£73.61
£73.61
Example product title
£73.61
£73.61
Example product title
£73.61
£73.61
Example product title
£73.61
£73.61
Example product title
£73.61
£73.61
Example product title
£73.61
£73.61
Example product title
£73.61
£73.61
Example product title
£73.61
£73.61
Example product title
£73.61
£73.61
Example product title
£73.61
£73.61

Recently Viewed Products