TTI FOOTNOTE # 55
Z-Bars: "A"-body applications with Standard Transmission.
Small Block: A modified Z-bar may be required when running TTi Small Block Headers in an A-body with Standard Trans. No modification required to the ball stud bracket. TTi modified Z-bar part #ZB340
Big Block / Hemi: A modified Z-bar required when running TTI's 383-440 1-3/4", 2" or 2-1/8" Hemi Headers in an A-body with Standard Trans. Your ball stud bracket may also require slight modification in order to clear the modified Z-bar. Check for proper operation prior to installing the headers. TTi modified Z-bar part #ZB307 / Illustration Sheet # 808ZB [.pdf]