Mr. Gasket
Header Gaskets Aluminum Layered Fits 1955-1991 Chevrolet 262-400 Gen I Small Block 1.45 Inch x 1.48 Inch Square Ports Mr Gasket
SKU: M00S 7401G
Description
Part #: 7401G
Upgrade to Mr. Gasket Aluminum Layered Header Gaskets and eliminate blown exhaust gaskets forever. They conform to warped and damaged surfaces to create an airtight, leak-proof seal and will not shrink or deteriorate EVER.
Features:
- Withstands Intense Exhaust Heat
- Reusable header, exhaust manifold and collector flange gaskets
- Resists Deteriorating
- Manufactured from "dead soft" aluminum layers - .125" thick
- Easy Removal For Disassembly
- Conforms easily to surface irregularities (warped flanges)
- Compresses down to 0.060" to create a tight leak-proof seal
- Will not shrink, deteriorate, or blow out- eliminating gasket leaks
- For high performance street, drag race and oval track use
Exhaust Manifold / Header Gasket - 1.450 x 1.480 in Square Port - Multi-Layered Aluminum - Small Block Chevy - Pair
Fitment
Fitment Guaranteed
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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
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Specifications
| Brand | Mr. Gasket |
| Part Number | M00S 7401G |
Buy with Confidence
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.
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