Engine Kits

Fel-Pro Performance Head Gasket Chevy V8 Small Block
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Fel-Pro Performance Head Gasket Chevy V8 Small Block

Part #: 1143
List Price: $125.91
Our Price: $75.55
You Save: $50.36

MLS Head Gasket, Bore 4.165" or 105.791mm, Compressed Thickness .041", Performance Head Gasket with a MLS bore bead combustion seal. This gasket is a PermaTorqueMLS multi-layer steel head gasket. It can be used on 400 race engines, Steam holes for 400 engines, Street use. It can be used on aluminum blocks with liners, Minimal brinelling of aluminum heads. Suitable for marine applications. 

This Fel-Pro Performance Head Gasket Part Number 1143 fits Cast iron or aluminum heads and has a volume of 9.200cc and is Sold individually / Each

Fel-Pro PermaTorque MLS Multi-Layer Steel

The latest development in head gasket technology is the multi-layer steel (MLS) design. At first glance, these gaskets look like the old-style embossed steel shim gaskets, but they are radically different. A thin rubber coating is bonded to the stainless steel shim and, as required, multiple layers (up to five) of this rubber-coated steel shim are assembled into a single gasket. The high-temperature rubber coating provides excellent fluid sealability across the outer faces and between the individual layers, while also sealing minor head and block surface imperfections. MLS head gaskets provide the ultimate in torque retention and supply extra strength to support current lightweight aluminum casting designs. They are specified on most current domestic and imported engines in production.

Why is the Fel-Pro PermaTorque MLS Design Better than the OEM Gaskets?

Traditional original equipment manufacturer (OEM) type MLS head gaskets don't easily conform to surface irregularities, and require an incredibly smooth surface finish to provide a satisfactory seal. When the castings are new and the finish is fresh, OEM-style MLS gaskets work quite well. But when the castings are old or resurfaced with a less than perfect finish, leaks result. To seal under these adverse conditions, Fel-Pro engineers have developed the exclusive PermaTorqueMLS design, engineered for the aftermarket repair environment. These newly redesigned MLS gaskets have many unique features that allow them to seal better than other MLS gaskets on the market today.

Bore (in) 4.165 in.
Bore (mm) 105.791mm
Brand Fel-Pro Performance
Compressed Thickness (in) 0.040 in.
Compressed Volume (cc) 9.200cc
Gasket Material Multi-layer steel
Lock Wire No
Notes Gasket has "Bore Bead" combustion seal. Can be used on aluminum block with liners.
Part Type Head Gaskets
Product Line Fel-Pro Performance Head Gaskets
Quantity Sold individually.

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