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

Speedmaster PCE348.1042 Pontiac 455 MLS Head Gasket 4.200" Bore 0.040" Thick

(Pontiac GTO 1967-73, Firebird 1967-79, Grand Prix 1967-77, Grand Am 1973-75, Bonneville 1967-78, LeMans 1963-77, Catalina 1967-78 + 8 more models)

Manufacturer

Part Number

PCE348.1042
Sale Price

$35.67

In Stock (10+)

delivery box

Usually delivered within 2 days

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Speedmaster PCE348.1042 Pontiac 455 multi-layer steel (MLS) head gasket is built to maintain contact pressure between the cylinder head and engine block through the dynamics of engine operation. It is specified at 4.200" @ 0.040" and is sold as a single gasket.

Key Features:

  • Multi-layer steel (MLS) laminate construction, known for standing up to the high shearing forces that occur between an aluminum head and an iron block
  • Internal embossments help create a better seal when the engine sees very high combustion pressures and temperatures, as in heavy nitrous and turbocharged applications
  • Suitable for aluminum heads on cast iron blocks and for aluminum heads on aluminum blocks
  • Better torque retention, less distortion and better sealing than conventional or composite head gaskets in high-horsepower, high cylinder-pressure applications
  • 4.200" @ 0.040" specification

Speedmaster designs its head gaskets to handle big power, making this MLS gasket a solid choice for a high-output Pontiac 455 build.

Products specifications

Fits

Pontiac GTO 1967-73, Firebird 1967-79, Grand Prix 1967-77, Grand Am 1973-75, Bonneville 1967-78, LeMans 1963-77, Catalina 1967-78, Tempest 1963-70, Parisienne 1967-74, Grandville 1971-75, Executive 1967-70, Grand LeMans 1975-77 + 3 more models

Compressed Thickness (in)

0.040 in.

Bore (in)

4.200 in.

Lock Wire

No

Quantity

Sold individually.

Product Weight (lbs.)

2

Gasket Material

Multi-layer steel

perfect

Quick and easy. Only thing, the item I am purchasing has the wrong picture. Going off the description

Good detail of product at a fair price. Thank you!

Easy to order

So Far so good.....I'll know better how great u are when i get the links in & operational when driving the vehicle

Great price and fast shipping. I will order from them again

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