SPEED ENGINEERING LS SWAP 1-3/4" SHORTY HEADERS 1982-2005 S10**NOTE: These headers are not EPA certified and do not carry a CARB approval. They are intended for competition use only and are not eligible to ship to California under any circumstance. WARNING: This is a RACE ONLY product manufactured and sold for installation on vehicles to be used solely for competition purposes. Once this part is installed, the vehicle may never be used, or registered or licensed for use, on a public road or highway. If you

The Pro-Flo XT LS3 EFI accepts GM OEM 90mm or Edelbrock #3869/#38693 throttle bodies

339% increase in internal tube area over stock

765cc/min (72lbs/hr) at OE 58psi (4 bar)

Custom Tuning: Required for optimal results

All TSP Rods include TSP-T19 Rod bolts for Maximum Clamping force

Designed for 2WD 1999–2006 Silverado and Sierra 1500s

Polymer construction is lightweight and high strength to eliminate power-robbing heat soak commonly found in aluminum intake manifolds

Note: Can be bolted or welded in for custom rear suspension configurations

PAC-1218 Drop-In Beehive Valve Spring Kit for all LS Engines -

Includes magnetic drain plug to capture debris and fragments in your cooling system

NOT DESIGNED FOR USE WITH OTHER 3-BOLT CONVERSION KITS

2007-2014 Tahoe