JEGS 555-30084 GM LS Swap Headers Feature:

• Heavy-Duty 3/8 in. thick flanges to prevent warpage
• 16-gauge 1 3/4 in. O.D. primary tube diameter
• O2 sensor bungs welded on both collectors
• Excellent spark plug access

JEGS 555-30084 GM LS Swap Headers Includes:

• (12) M8-1.25 x 25.4 mm (1 in.) UHL with 13 mm Hex Flange Head
• (2) LS Header Flange Gaskets

JEGS Recommended Engine Mounts:

• JEGS LS Engine Swap Motor-Mount Adapters. Adapts Small Block Chevy Motor-Mounts to LS-Series Engine 555-50538
• JEGS Solid Engine Mounts. Small Block Chevy 555-50511

JEGS 555-30084 GM LS Swap Headers Notes:

• Will not fit 1988-1999 4-wheel drive Chevy & GMC Trucks.
• O2 Sensors may need to be relocated on some applications.
• These headers are intended for racing and off-road applications only.
• Not legal for sale or use in the state of California.

Special Exhaust Headers Notes:

• Due to variations in engine and vehicle configurations, installation of aftermarket headers may require minor modifications
• Common adjustments include power-steering or A/C bracket relocation, dipstick tube modification, or clearance for steering shaft and clutch linkage
• Inspect for worn or collapsed motor mounts, and verify clearance for spark plugs, wires, brake lines, and transmission or fuel lines
• Always test-fit headers before painting or coating to ensure proper alignment and clearance
• Re-torque after initial heat cycles

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

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