Exhaust Headers, Manifolds and Components

Hooker

Transmission Crossmember 1970-1981 2Nd Gen GM F-Body LS Swap T56, T56 Magnum Transmission Crossmember, For Use With Dse (Detroit Speed, Inc.) Subframe & Suspension Hooker BlackHeart

$645.50

SKU: H00I 71222006HKR

In Stock
In Stock
Ships by Jun 7
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Hooker Headers 71222006HKR is a transmission crossmember designed for LS swap T56/T56 Magnum transmissions. It is constructed from high-strength, low-alloy steel with a powder-coated finish for durability and aesthetics.

It is specifically engineered for 1970-1981 2nd generation GM F-Body vehicles when used with a Detroit Speed INC. Subframe. It provides clearance for a 3-inch exhaust when paired with specific Hooker Blackheart LT headers and exhaust systems. All necessary hardware and floor backing plates are included.

Fitment

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Specifications

BrandHooker
Part NumberH00I 71222006HKR

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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