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

Cometic C5760-040 MLS Cylinder Head Gasket GM/Mercury Marine Gen-VI Big Block - 502 V8

Part of: Cometic MLS Cylinder Head Gasket Chevy Big Block Bore

Other options in this family: Cometic C5331-080 Cometic C5816-045 Cometic C5332-040 Cometic C5434-066 Cometic C5434-045

Manufacturer

Picture for manufacturer Cometic

Part Number

C5760-040
15 reviews
Sale Price

$104.34

In Stock (9)

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

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 Cometic C5760-040 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for GM and Mercury Marine 525/625 502 cubic inch Gen-VI big block V8 engines. This precision-manufactured gasket features a .040" (1.02mm) compressed thickness and accommodates a 4.470" bore diameter, making it ideal for marine and high-performance applications.

Key Features:

  • Multi-Layer Steel (MLS) construction provides superior sealing and durability under extreme conditions
  • .040" compressed gasket thickness allows for precise compression ratio tuning
  • 4.470" bore diameter designed for 502 cubic inch big block applications
  • Engineered for GM Gen-VI big block and Mercury Marine 525/625 marine engines
  • MLS design offers excellent recovery and maintains seal integrity through thermal cycling
  • Professional-grade gasket suitable for performance rebuilds and marine engine applications

Cometic Gaskets are known for their precision manufacturing and use of premium materials, ensuring reliable performance in demanding marine and automotive environments. The MLS construction provides multiple layers of stainless steel with advanced coating technology for optimal sealing across the entire combustion chamber surface.

Products specifications

Prop 65

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

Material

Multi-layer Steel

Great transaction! Will buy from again

All very well

Great company, quick delivery!!

Good product. Arrived but it would have been helpful to have a link sent with tracking number to click on. Thanks

.

Good, but delivery time not on a par with other vendors.

The SHO is a difficult car to find performance parts for. Best price on these brake lines I’ve found anywhere and free shipping a big plus. We’ll see how fast they get here. Amazon usually gets things delivered within 3 days, even with ground shipping. I have high hopes you will too!

Found what I needed at price that is OK.

Good price.good shipping.

Fast! Fast, fast, Fast! Fast, fastFast! Fast, fast

Good store to deal with.<br><br>Will purchase from them again.

I was very surprised that even with shipping, I saved 40% over the exact same item at a local auto store. They shipped the next business day and I am expecting to receive within 1 week of placing the order.<br>Autoplicity's website is easy to navigate and the selection and prices are top notch. I will be ordering from here again!

I ordered a Volant cold air intake for my truck,, really fast shipping and product got home without a scratch,,great website,,this is my first time shopping at autoplicity and im definatley going to shop there again.

Same day shipping. 20 Dollars cheaper than everywhere else!

Amazing prices and amazing shipping speed! Best all around. Will be ordering more soon!

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