Chev 350 SBC Blazer Suburban Yukon C1500 2wd 1963 - 1987 Extractors # 2452HKRChev 350 SBC Blazer Suburban Yukon C1500 2wd 1963 1987 Extractors # 2452HKR Headers, Competition, Long Tube, Steel, Painted, Chevy, GMC, Small Block, Pair Header Style: Long tube one piece Header Material: Steel Primary Tube Outside Diameter (in.): 1 5 8 in. Header Color: Temporary non high temperature paint Flange Style: Standard Weld Up: No Cylinder Head Port Shape: Oval Collector Attachment: 3 bolt flange Collector Diameter (in.): 2. 50 Collector