UN-003

LS Swap 1-3/4" Primary Headers - Mid Length

WILL NOT SHIP TO CALIFORNIA

Pro Performance is proud to bring another winner to the classic truck table! These mid-length LS headers are built with 304 stainless steel for good looks and a long life, even in harsher climates. With 1 3/4" mandrel bent primary tubes and stepped, 3" V-band collectors, these headers perform as well as they look!

Intelligently designed for all GM LS engines with CNC-machined, 3/8" thick flanges, and the primary tube routing keeps things tucked in nicely to fit a variety of chassis designs.

Features:

  • 1 3/4" Primaries
  • 3" Collectors
  • Mandrel Bent Tubing
  • V-Band Collectors
  • Collector Extensions with O2 Sensor Bungs
  • Port Matched & CNC Machined Flanges
  • Polished 304 Stainless Steel
  • Graphite Manifold Gaskets Included

Note: Angle-boot plug wires are strongly recommended with these headers. Measure your length from the coil to the plug, and order them here.

Note: If using a 4L80E or Turbo 350/400 transmission, the bellhousing ears may need to be trimmed for header clearance. These headers are tucked in tight to fit into narrow chassis.

Tested Vehicle Applications:

  • 1960-87 Chevy/GMC C10 trucks and SUV
  • 1988-98 GM OBS C1500 & K1500

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