? about big block 4x4 headers - The 1947 - Present Chevrolet & GMC Truck Message Board Network

67_SS396 · 03-23-2003, 10:39 PM

I had a problem with my old '74 Blazer with headers. I used the proper BB headers from Headman and the pass. side hung down too low for the front driveshaft to clear. It was close just sitting, but with any twisting, the driveshaft would have taken the header out. Maybe it was just the design of the header, but I don't really know. Wish I could help more.

Edit, oops I just remembered, you have a healthy lift on your truck. If I would have lifted the Blazer 4-6" the headers would have cleared fine.

03-23-2003, 10:39 PM	#1
67_SS396 Registered User Join Date: Mar 2000 Location: Blue Ridge, Tx Posts: 1,172	I had a problem with my old '74 Blazer with headers. I used the proper BB headers from Headman and the pass. side hung down too low for the front driveshaft to clear. It was close just sitting, but with any twisting, the driveshaft would have taken the header out. Maybe it was just the design of the header, but I don't really know. Wish I could help more. Edit, oops I just remembered, you have a healthy lift on your truck. If I would have lifted the Blazer 4-6" the headers would have cleared fine.



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