Sale

Exterior Components Body Panels and Components

Mr. Gasket

Ultra-Seal Header Gaskets Fits 1966-1992 Chrysler 273-360 LA Small Block Rectangular Ports, 1.00 Inch x 1.64 Inch Mr Gasket

$64.95 $59.35 Save $5.60

SKU: M00S 5938

In Stock
In Stock
Ships by Sep 20
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Overview

The Mr. Gasket 5938 is an Ultra-Seal exhaust manifold gasket set designed for Chrysler Small Block LA engines. It features a rectangle port shape with dimensions of 1.000 in. x 1.640 in. and a thickness of 0.062 in.

Manufactured from a high-temperature steel core with a graphite-impregnated facing, this gasket set offers superior tensile strength, resists cracking and deterioration, and withstands intense heat. The expanded metal core provides stability and torque retention, while the graphite facing ensures excellent heat resistance and thermal conductivity.
Show original supplier description

Part #: 5938

Manufactured from high-temperature steel core/graphite faced exhaust material. Expanded steel core provides stability and maximum torque retention to eliminate Gasket failure.Graphite facing provides excellent heat resistance and thermal conductivity to transfer heat away from the cylinder head. Conforms to and seals minor surface irregularities.High recovery material allows header or manifold flange to stay sealed if flange loses clamp-load. Can be trimmed if necessary for modified port applications.For original equipment replacement, high performance street, drag race and oval track use.Manufactured from high-temperature steel core/graphite faced exhaust materialExpanded steel core provides stability and maximum torque retention to eliminate Gasket failureGraphite impregnated facing provides excellent heat resistance and thermal conductivity to transfer heat away from the cylinder headConforms to and seals minor surface irregularitiesCan be trimmed if necessary for modified port applicationsFor OE replacement, high performance street, drag race and oval track useDetails:Collector Gaskets Included: NoEmission Code: 5Gasket Line: Ultra-SealMaterial: Ultra-sealPort Shape: RectanglePort Size: 1.00 x 1.64Warranty: Manufacturer's Limited 90 Day Warranty

Features:

  • Manufactured from high-temperature steel core/graphite faced exhaust material
  • Expanded steel core provides stability and maximum torque retention to eliminate gasket failure
  • Graphite impregnated facing provides excellent heat resistance and thermal conductivity to transfer heat away from the cylinder head
  • Conforms to and seals minor surface irregularities
  • Can be trimmed if necessary for modified port applications
  • For OE replacement, high performance street, drag race and oval track use

Fits 1966-1992 Chrysler 273-360 LA Small Block. Rectangular Ports, 1.00 Inch x 1.64 Inch

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandMr. Gasket
Part NumberM00S 5938

About MOTORMIA

5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy