Mr. Gasket Thermostat Gasket - Bulk Packaged

1965-1990 Chevrolet 396-454 Big Block Chevrolet
1955-1990 Chevrolet 262-400 Small Block
1979-1992 Mopar 318-360 LA Small Block
1992-2003 Mopar 3.9L/5.2L/5.9L Magnum

PART# 740

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$3.84   Suggested Retail
$3.46   Your Price
Estimated shipping date: 04/29/2020
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Manufactured from a blend of nitrile rubber and fiber for excellent sealing and durability. Precision die cut for application.


  • This gasket is bulk packaged
  • Made from Cellulose/Nitrile Composition
  • Provides Excellent Sealing and Durability
  • These Gaskets are Die Cut for a Precision Fit
  • Fits Small Block Chevy V8 Engines 1955-'90
  • Fits Big Block Chevy V8 Engines 1965-'90
  • Fits Small Block Chrysler 318/360 1979-'92
  • Fits Small Block Chysler 3.9L/5.2L/5.9L Magnum 1992-'03


BrandMr. Gasket
Emission Code5
EngineChevrolet Big Block Mark IV
Chevrolet Small Block Gen I
Chrysler Small Block LA
Chrysler Small Block Magnum
Product TypeWater Neck Gaskets
Part Number740


This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.


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