1 3/4" vs. 2" Header Size
Just watched an Engine Masters video, https://www.youtube.com/results?sear...rs+header+test, (love these videos!) where they tested various primary tube size headers on a small block Chevy. They found that 1 7/8" headers vs. 1 3/4" made just slightly more power at the top end and lost some torque in the mid-range. Wondering if anyone has any dyno results of Watson (1 3/4") vs. Stainless Works (2") for our cars? Are OBX 2"? I'm guessing 2" helps the LT5 in the 6000-7000 rpm range but hurts down below.
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'95 ZR-1, aqua/gray, #167
368 LPE/Haibeck, Web cams, Stainless Works headers, B&B Fusion exhaust, 18" Fikse wheels, Alcon brakes, lowered. 491 SAE RWHP.
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