1973-87 4WD LS1-LS7 1 3/4" long tube Schoenfeld Headers feature 5/16 flanges, 16ga primaries, O2 sensor bungs installed in collector, and excellent spark plug access. Collector diameter is 3 inches and 8 inches long. These headers allow easy fitment and tuck tight against the body above the frame rails. Temporary non-high temperature paint.

* May not clear factory transmission linkage-

-For GM 200-R4 TH200 TH350 TH400 700R4 4L60 4L65 4L70 4L80 Lokar ACA-1800 Adjustable Column Shift Linkage Kit

-For GM 6L80 6L80E Lokar ACA-1809 Adjustable Column Shift Linkage Kit or use an aftermarket cable shifter

-These products are intended for racing and off-road applications. Not legal for sale or use in the state of California, nor in states which have adopted California emission standards.

*Shipping times vary depending on the stock and manufacturer