Mr. Gasket Ultra-Seal Overhaul Gasket Kit

Fits 1968-1976 Oldsmobile 400/425/455 V8


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$234.95   Suggested Retail
$189.86   Holleydays Price
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Kits include Mr. Gasket Ultra-Seal cylinder head gaskets, intake gaskets, exhaust gaskets, oil pan gaskets, valve cover gaskets, timing cover gaskets, fuel pump gaskets, water pump gaskets, distributor gaskets, thermostat gaskets, and rear main seals. Perfect for OE replacement, high-performance street, drag racing, or oval track racing. For Oldsmobile V8 400, 425, 455 1968-76


BrandMr. Gasket
Emission Code5
EngineOldsmobile V8
Exhaust Port ShapeRectangle
Exhaust Port Size1.55" x 1.92"
Head Gasket Bore4.230"
Head Gasket Compressed Thickness.038"
Head Gasket MaterialUltra Seal
Header Gasket MaterialUltra-seal
Header Gasket Thickness.062"
Intake Manifold Gasket MaterialUltra-seal
Intake Manifold Gasket Thickness.060"
Intake Port ShapeRectangular
Intake Port Size1.41" x 2.49"
Oil Pan Gasket MaterialPerformance
One Piece Oil Pan GasketNo
Product TypeGasket Kits
Rear Main Seal StyleTwo Piece
Valve Cover Gasket MaterialUltra Seal
Valve Cover Gasket Thickness.187"
Part Number5981MRG

Service Parts


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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