Exterior Components› Body Panels and Components

Patriot Exhaust

HDR FLANGE CHEV ROUND LS1LS6

$127.13

SKU: P012 H7813

In Stock
In Stock
Ships by Jun 15
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Patriot Exhaust H7813 is a header flange kit designed for Chevrolet LS1-LS6 engines with 1 7/8" round port heads. It features precision machining and heavy-duty 3/8" thick steel construction.

This flange kit is supplied with premium head gaskets and is available for many popular engine families, offering a wide variety of tube diameters and port shapes.

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

BrandPatriot Exhaust
Part NumberP012 H7813

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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