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Mr. Gasket

Mr. Gasket Ultra-Seal Overhaul Gasket Kit

Fits 1958-1985 Chevrolet 283-350 Gen I Small Block

Part # 5991 Be the first to write a review
Estimated shipping date: 12/31/2021
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Holley Days Price
$207.95
Suggested Retail
$232.00
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Mr. Gasket Ultra-Seal Engine Overhaul Kits are designed for maximum sealing of bi-metal (cast iron block/aluminum cylinder head) engines, but work equally well on all iron or all aluminum varieties. Kits include Ultra-Seal cylinder head, intake, exhaust, valve cover and oil pan gaskets and Mr Gasket Performance timing cover, fuel pump, thermostat, water pump, and rear main seals. For original equipment replacement, high-performance street, drag or oval track racing.

Features:

  • Designed for maximum sealing of bi-metal (cast iron block/aluminum cylinder head) engines
  • Ultra-Seal cylinder head, intake, exhaust, valve cover and oil pan gaskets
  • Mr Gasket timing cover, fuel pump, thermostat, water pump, and rear main seals
  • For OE replacement, high performance street, drag race and oval track use

About Mr. Gasket

Using his own '57 Chevy as a rolling testbed, drag racer Joe Hrudka launched the most famous gasket company in the world more than half a century ago. Mr. Gasket is the go-to gasket source for racers with gaskets and fasteners that seal perfectly every time.

Brand Mr. Gasket
Emission Code5
EngineChevrolet Small Block Gen I
Exhaust Port ShapeSquare
Exhaust Port Size1.25" x 1.30"
Head Gasket Bore4.130"
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 Size1.25" x 2.00"
Oil Pan Gasket MaterialUltra-seal
One Piece Oil Pan GasketNo
Product TypeGasket Kits
Rear Main Seal StyleTwo Piece
Valve Cover Gasket MaterialUltra Seal
Valve Cover Gasket Thickness.187"
WarrantyLimited 90 Day
Weight2.1000
UPC084041059913
Part Number5991
5

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.

Limited 90 Day: See Details
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