APPLICATION: For 60-87 Chevy/GMC trucks and SUVs (2WD & 4WD) with 283-400 cu. in. small block V8
TECH SPECS: Header Type ：Long Tube / Full Length Primary Diameter：1-1/2 in. (38mm) Collector Diameter：3 in. (76mm) Head Flange Thickness：5/16 in. (8.0mm) Pipe Thickness：16 gauge (1.5mm) Material ：Mild Steel Finish ：High Temperature Black Coating
Item：6401A-BK
FEATURES: Fully mandrel bent tubes made of 16-gauge mild steel Head flanges laser-cut from 5/16-inch thick steel plates Full length design for power gain from mid to high RPM range Flanges flattened by hydraulic press for precise and leak-free seal All joints TIG welded for resistance against cracking and wearing Black paint coating that withstands up to 500 degrees Celsius
