My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

Edelbrock 3866 Intake Manifold Runner to Base Gasket Set

(GMC G2500 1987-91, K1500 1988-91, C1500 1988-91, K2500 1988-91, Jimmy 1987-91, C3500 1988-91, K3500 1988-91, C2500 1988-91, G3500 1987-91 + 47 more models)

Manufacturer

Picture for manufacturer Edelbrock

Part Number

3866
6 reviews
Sale Price

$86.95

Estimated ship date Monday, November 23

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Edelbrock 3866 is a replacement runner-to-base gasket set specifically designed for use with Edelbrock intake manifolds #3865 and #3870. These gaskets provide a critical seal between the intake runners and the base of the manifold, ensuring optimal air/fuel delivery and preventing vacuum leaks that can compromise engine performance.

Key Features:

  • Direct replacement gaskets for Edelbrock #3865 and #3870 intake manifolds
  • Manufactured to Edelbrock's OEM quality standards
  • Same high-quality gaskets supplied with new Edelbrock intake manifolds
  • Precision-cut design ensures proper fit and reliable sealing
  • Made from durable gasket material for long-lasting performance

These gaskets are essential components when rebuilding, servicing, or reinstalling compatible Edelbrock intake manifolds. Using genuine Edelbrock gaskets ensures the perfect seal and maintains the performance characteristics your engine was designed to deliver.

Products specifications

Fits

GMC G2500 1987-91, K1500 1988-91, C1500 1988-91, K2500 1988-91, Jimmy 1987-91, C3500 1988-91, K3500 1988-91, C2500 1988-91, G3500 1987-91, G1500 1987-91, R1500 Suburban 1987-91, V3500 1987-91, R1500 1987, R3500 1987-91, R2500 1987-89 + 41 more models

Material

Paper

Valley Pan Included

No

Configuration

MULTI PIECE

Manifold Gasket Bolt Hole Quantity

3

Color

Black

RGL

WARNING: This product can expose you to Lead, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov.

Very helpful and informative.

JHBJ

Price is lower here for the product I was looking for. Hopefully shipping is careful with my carbon fiber product.

Glad to find what I needed!

easy use

Found just what I needed

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy