Hooker
LTS HEADERS, 73-74 GM K10 TRUCK LS SWAP
SKU: H00I BH13326
Description
Part #: BH13326
Hooker Blackheart is pleased to announce the release of our new LS and LT engine swap headers for the 1973-1974 Chevy K10 truck chassis. These headers are designed to increase engine performance and provide the best component and ground clearances available for this application. They can be used with all GM automatic transmissions, the venerable SM465 manual transmission, and NP203, NP205, NP208, and NP241 transfer cases. In addition, they feature 100% 304SS stainless steel construction, 3/8 in. thick flanges, and formed-merge collectors with one O2 bung in each of them.
Features:
- Long-Tube LS Swap Headers for 1973-1974 K10 4WD Trucks
- Long-Tube Ls And Gen-V Lt Swap Headers For 1973-1974 K10 4Wd Trucks
- Use with Hooker BlackHeart Engine Swap Brackets BHS555, or WB130054
- Headers Are Constructed From Lightweight 18-Gauge 304 Stainless Steel With 3/8-Inch Waterjet Cut Flanges
- Compatible with factory transmission crossmembers and most GM automatic transmissions (TH350, TH400, 700R4, 4L60-4L70, 4L80E/4L85E, 6L80/6L90), and SM465 manual transmissions
- Formed-Merge Collectors Promote Maximum Flow Velocity Through The Collectors - For Maximum Performance
- Compatible with factory right-side-drop NP203, NP205, NP208, and NP241 transfer cases
- O2 Sensor Bung Included In Each Collector
- Headers are constructed from lightweight 18-gauge 304 stainless steel with 3/8-inch waterjet cut flanges - for strength, durability, and corrosion protection
- 100 Percent Hand-Welded Construction For Strength/Longevity And Great Looks
- Choose from - BH13325 (LS swap with 1-3/4-inch primary tubes), or BH13326 (LS swap with 1-7/8-inch primary tubes)
- Tube Geometry Is Designed For Maximum Component Clearance And Hassle-Free Installation
- Formed-merge collectors promote maximum flow velocity through the collectors - for maximum performance
- All Hardware Included
- O2 sensor bung included in each collector
- Manufacturers Limited Lifetime Warranty
- 100% hand-welded construction for strength, longevity, and great looks
- Tube geometry is designed for maximum component clearance and hassle-free installation
- All hardware included
- Manufacturer's limited lifetime warranty
Long Tube Headers | 1-7/8 in. Primary Tube | 304 Stainless Steel | Fits w/1973-1974 K10 4wd Trucks LS Engine Swap
This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
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
| Brand | Hooker |
| Part Number | H00I BH13326 |
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.
View Full Return Policy