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Home | Big Block Chevy Modular Flange/Elbow System - Stock Ports

Big Block Chevy Modular Flange/Elbow Sytem
Stock Ports

Cast Header as cast
  • High strength Stainless Steel flanges, cast from 316L Grade Stainless
  • Tight radius cast 316L Stainless elbows with 1.500” centerline radius
  • Available with 1.875”, 2.000” or 2.125” elbows
  • Flange to Elbow adapter sleeves for 1.875”, 2.000” or 2.125” elbows
  • Allows high-flow, larger header tubes into tight places
  • Elbows (and adapter sleeves if needed) can be individually rotated to desired angles
  • Helps deliver improved power and torque
  • Facilitates fits into cramped engine compartments
  • Helps avoid conflicts with strut towers, steering systems, starters, accessories
  • Highly attractive, high tech appearance
  • Ideal for muscle cars, PRO Touring, Street Rods, Pickups, competition use
Part Number Description Finish List Price
304015 2.000" Flange Cast $149.00 (set of 8)  
99532000 2.000" Elbow Cast $29.00 each  
99572000 2.000" Adapter Cast $20.00 each  

WARNING: This product can expose you to chemicals including Chromium (VI), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to

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Ultimate Headers are sold exclusively through performance and installer shops. For products, specs and where to buy click here.