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FlowTech Upright Headers 11551FLT

FlowTech Upright Headers 11551FLT
FlowTech Upright Headers 11551FLTFlowTech Upright Headers 11551FLTFlowTech Upright Headers 11551FLTFlowTech Upright Headers 11551FLT
$672.99 ea
NEWARRIVING SOONEstimated Ship Date 03/18/2024 (If Ordered Today)53 Available from HOLLEY PERFORMANCE PRODUCTS as of 02/23/2024
Model: 4005925
Flowtech Headers are the perfect combination of quality and value. These Big Block Chevy Upright headers available in 2-1/4" tube diameters are ideal for even big cubic inch Big Block Chevy engines
  • CNC Mandrel-bent tubes provide consistent tubing diameters for smooth flow and increases the cylinder scavenging effect and improves engine breathing
  • Heavy duty 16-gauge 409SS tubing for increased strength and durability
  • 2-1/4” tubing diameter for increased exhaust flow increasing performance and improved throttle response
  • Extended 4” collector for maximum strength and exhaust flow
  • Extra thick 7/16” header flange for a leak-free seal and maximum strength
  • Welded-in collector merge spears to control exhaust gas re-entry into primary tubes
  • Center of exhaust port to end of collector length is 33-1/2"



Application Big Block Chevy
Bolt Size 3/8-16 x 3/4, 3/8-16 x 3/4
CARB (California) Compliant No
Collector Diameter 4.00 inch
Emission Code 4
Engine Big Block Chevy
Header Finish Natural
Header Style Upright
Part Type Exhaust Header
Primary Tube Dia. 2-1/4 inch
Product Type Headers
Proposition 65 www.P65Warnings.ca.gov
Tube Material 409 Stainless Steel


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