My Account
My Garage
Shopping Cart
MY GARAGE Select Vehicle
MY GARAGE

Cometic C5691-120 Buick Stage I/II MLS Cylinder Head Gasket Bore - V6 3.860

(Cadillac DeVille 1980-82, Eldorado 1981-82, Seville 1981-82, Fleetwood 1980-82; Chevrolet Camaro 1980-81, 1995-2002, Impala 1980-85, 2000-05 + 49 more models)

Manufacturer

Part Number

C5691-120
Sale Price

$228.64

Estimated ship date Sunday, November 22

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Cometic C5691-120 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Buick Stage I and Stage II V6 engines. This precision-manufactured gasket features a 3.860" bore diameter and .120" compressed thickness, providing exceptional sealing capability for modified and high-performance applications.

Key Features:

  • Multi-Layer Steel (MLS) construction for superior combustion sealing and durability
  • .120" (120 thousandths) compressed gasket thickness
  • 3.860" bore diameter designed for Buick Stage I and Stage II V6 engines
  • Embossed stainless steel layers with Viton rubber coating resist extreme temperatures and pressures
  • Ideal for turbocharged, supercharged, and high-compression builds
  • Superior rebound characteristics maintain consistent clamping pressure

Cometic MLS head gaskets are the choice of professional engine builders and performance enthusiasts who demand maximum reliability. The multi-layer design allows the gasket to adapt to head and block surface imperfections while maintaining optimal sealing under extreme cylinder pressures. Compatible with Buick 231ci (3.8L) V6 engines equipped with Stage I or Stage II performance cylinder heads.

Products specifications

Fits

Cadillac DeVille 1980-82, Eldorado 1981-82, Seville 1981-82, Fleetwood 1980-82; Chevrolet Camaro 1980-81, 1995-2002, Impala 1980-85, 2000-05, Malibu 1978-83, Caprice 1980-85, El Camino 1978-84, Monte Carlo 1978-87, 1998-2005 + 45 more models

Prop 65

WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov

Material

Multi-layer Steel

They have the best prices and fast shipping too.

Great price and fast shipping!

Best price I could find! Great customer service kept me informed through the whole order process to insure acuracy since it was being sent directly from the manufacture. Recieved my order in good time, right parts and no damage. Overall very satisfied and will be doing business again in the future.

Very competitive low prices and great product selection. Will definitely look to this vendor when purchasing automotive parts in the future.

Great prices and FAST shipping!! Definitely will buy products here again!

Couldnt find the item by navigating the page, had to google search it then it came up, but otherwise easy purchase.

Although there was a mix up with the shipping on my order customer service was helpful and expedited the solution and made it worth my trouble. I will be keeping Autoplicity in mind for any other parts I might need for my Jeep.

Share icon
Return Policy
Returns are easy at Autoplicity

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