SPELAB Exhaust Header for Truck & SUV LS Swap S10 LS1 LS2 LS3 LS6

Stainless Steel Headers for Truck and SUV LS-Swap Projects

The SPELAB stainless steel header pair is intended for truck and SUV LS-swap projects using the listed LS1, LS2, LS3 or LS6 engines, including an S10 conversion application. The mirror-polished tubular layout and V-band-style collector connections support a coordinated custom exhaust. Engine-family compatibility does not confirm clearance in a particular chassis.

Best For

• Truck, SUV and S10 builders matching a listed LS engine to a verified exhaust route.
• Custom LS-swap projects where mounts, steering clearance and downstream collector connections can be planned together.

Match the Engine Interface and the Chassis Route

The SPELAB truck/SUV LS-swap headers merge four primary tubes on each bank into one collector. Engine position, steering geometry, suspension space and transmission layout determine whether the assembly suits the actual swap.

The SPELAB LS-swap header package is an exhaust-side component set, not a complete engine-conversion kit. A listed LS engine designation does not establish a factory-style, no-modification connection to every vehicle exhaust.

Specs

What’s Included

Check the Installation section for vehicle-side seals, fasteners and connections that may need to be retained or renewed.

Vehicle & Engine Fitment

The SPELAB truck/SUV LS-swap application does not provide an exact model-year matrix or verified 2WD/4WD coverage. Confirm the actual cylinder heads, engine mounts, frame, steering and driveline before ordering. Do not extend the LS1/LS2/LS3/LS6 list into an unrestricted LS1-through-LS6 range.

Before You Order & Install

• Swap configuration: provide the chassis year/model, 2WD/4WD configuration, engine designation, cylinder heads, mount setup and transmission.
• Clearance: check steering through its full movement, frame, suspension, driveline where fitted, starter, plug wires and surrounding lines during engine movement.
• Collector and sensors: match the V-band-style profiles, pipe sizes and outlet route. Verify the required oxygen-sensor provisions on the complete exhaust separately; the shown mating pipe stubs are not evidence that sensors are supplied.
• Pack and downstream parts: confirm the current gaskets, bolts, clamps and stubs. Plan any required vehicle-side supports, sensors and pipework separately.
• Intended use: establish applicable noise and emissions requirements before purchase. Retain all required catalysts, sensors and auxiliary equipment. Product naming alone does not establish road-use certification or inspection compliance.

Will the ECU Need Tuning?

Have a qualified technician assess the actual engine, sensor arrangement and complete exhaust. Product-specific calibration data does not support a universal claim that tuning is required or unnecessary. Diagnose leaks, sensor faults and warning lights first. Calibration cannot correct incompatible joints, poor clearance or missing required emissions equipment.

Installation Overview

This is a general installation overview. Follow the service procedure for the actual vehicle and complete the configuration and connection checks above. Professional installation is recommended.

1. Confirm the configuration and parts. Check the SPELAB LS-swap headers against the actual LS1, LS2, LS3 or LS6 engine, head flanges, mounts and chassis.
2. Cool and support the vehicle. Allow the engine and exhaust to cool completely. Use the correct lifting procedure with a suitable lift or rated stands on a firm level surface; never work beneath a vehicle supported only by a jack.
3. Record connections and remove the original assembly. Record the existing pipe route and required sensor, heat-protection and support connections. Remove affected exhaust parts following the actual vehicle and conversion procedures.
4. Prepare the joints. Inspect threads, mating surfaces, supports and retained pipes. Address damaged fasteners and clean sealing faces carefully. Match the appropriate seal and hardware to every joint.
5. Trial-fit the complete route. Trial-fit both headers, mating pipe stubs and intended downstream pipes. Verify steering, suspension, driveline, frame and heat-sensitive-part clearance without stressing the joints.
6. Secure and restore connections. Secure compatible head and collector joints with the correct seals and tightening requirements. Restore all required sensors, equipment, wiring, heat protection and exhaust supports.
7. Check sealing and operation. Run the engine in a well-ventilated area and inspect for leaks, contact, abnormal sound and warning lights. Investigate faults before use and recheck the cooled assembly as required by the applicable service procedure.

Frequently Asked Questions

Does an LS1, LS2, LS3 or LS6 engine guarantee chassis fitment?

No. The SPELAB truck/SUV LS-swap headers still require verification of cylinder heads, mounts, engine position, frame and steering clearance. Engine-family compatibility alone does not establish a fit in the actual vehicle.

Is every S10 year and drivetrain covered?

The SPELAB truck/SUV LS-swap application includes an S10 conversion reference but no verified year-by-year or 2WD/4WD matrix. Confirm the exact chassis and drivetrain before ordering.

Are the supplied collector joints ordinary band-clamp joints?

The SPELAB LS-swap images show V-band-style collector flanges with mating pipe stubs and matching clamps. Confirm the actual flange profile and dimensions rather than assuming compatibility with an ordinary straight-pipe band clamp.

Are oxygen sensors included?

The SPELAB LS-swap images do not verify supplied oxygen sensors. Check the required sensor positions, mounting provisions and wiring reach on the complete exhaust, and confirm the current package with SPELAB.

Is this a complete LS-swap kit?

No. The SPELAB truck/SUV LS-swap package shows two headers, two mating pipe stubs, two V-band-style clamps, head-flange gaskets and header bolts. A complete engine swap needs other parts selected for the actual engine and vehicle.

Warranty & Customer Support

A one-year limited warranty from delivery covers qualifying material and workmanship defects under normal use for the original purchaser. Proof of purchase is required. Improper installation, alteration and modification are excluded, as are installation and removal labor costs.

Returns within 30 days are subject to product condition and the applicable shipping terms. Read the Warranty & Return Policy for eligibility and claim procedures.

For fitment questions or an order issue, email service@spelabautoparts.com or call +1 888 301 8666. Hours: Monday–Friday, 9:00 AM–6:00 PM EDT. Share your vehicle year, model, engine, chosen style and relevant photos; include the order number for an existing purchase.