Sale

Exterior Components Body Panels and Components

Mr. Gasket

Copper Seal Header Gaskets Flat Fits 1955-1991 Chevrolet 262-400 Gen I Small Block Round Ports Mr Gasket

$79.95 $73.55 Save $6.40

SKU: M00S 7150MRG

In Stock
In Stock
Ships by Sep 15
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The Mr. Gasket Copper Seal Header Gaskets are made from dead-soft solid copper with a .043 inch thickness. These gaskets feature a .051 inch embossment around each port to seal irregular surfaces, resulting in a total gasket thickness of .094 inch. They provide excellent sealing and durability, conforming to and sealing minor surface irregularities.
Show original supplier description

Part #: 7150MRG

Mr. Gasket Copper Seal Header Gaskets are made from dead soft solid Copper .043 inch thick. This Gasket incorporates .051 inch embossment around each port to seal irregular surfaces, total Gasket thickness is .094 inch.Provides excellent sealing and durability. Conforms to and seals minor surface irregularities.designed for high-performance street, drag race, oval track and turbocharged (extreme heat) applications.Withstands Intense Exhaust HeatResists DeterioratingEasy Removal For DisassemblyDetails:Collector Gaskets Included: NoEmission Code: 5Finish: FlatGasket Line: Copper-SealMaterial: CopperPort Shape: RoundPort Size: 1.5Warranty: Manufacturer's Limited 90 Day Warranty

Features:

  • Withstands Intense Exhaust Heat
  • Resists Deteriorating
  • Easy Removal For Disassembly

Fits 1955-1991 Chevrolet 262-400 Gen I Small Block. Round Ports

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 7150MRG

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