Hooker BlackHeart LS-Swap Full-Length Header - Painted; 1973-1974 GM C-10/20 2WD Trucks, Full-Length LS-Swap, 1-7/8", Collector Size 3". These Headers are designed for use with Standard 12621HKR engine mounting brackets.
Features:
- For GM LS engine swaps into 1973-1974 GM C-10/20 2WD Trucks
- 1-7/8" primary tube diameter and 3" collector diameter ideal for "hot" LS1/LS6/LS2 or 5.3L-6.0L Vortec truck engine swaps
- Long tube design for optimum engine performance
- Mild steel construction with black painted finish
- Designed for use with <a href="https://www.holley.com/12621HKR">12621HKR</a> engine mounting brackets
About Hooker BlackHeart

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