Gold Lifetime Member
Join Date: Jan 2005
Location: 2 Dog Town in West Texas
Re: Dougs headers
The D-368 header is about the best fitting header of this size and for the money. I just converted from a set of TriY's 1 5/8" tubes to the D368. I had no fitment issues at all. One thing for sure, the driver side header needs to come up from the bottom and pretty much straight up. Need to have the car jacked up as high as possible and linkage out of the way. I would leave header protective wrapping on , until you get header up into position. I am not sure about your auto linkage, I do think the lock out rod needs to be removed if you have one.
Worst case would be to loosen driver side engine mount and raise motor .
I am not sure about the Vortec heads, the ports maybe be raised higher but then the ports are smaller? I went to the D368 due to larger exhaust port heads so maybe you will seal.
Lets see what the other guys have to say.
TC # 349
Zdld17:69 Z/RS,306, NOR141111, 9N554XXX, 12A, X3G, 59/59,723, AFR 195,CCC282/290HR, TKO 600, BU1122B1E Owner since Dec 1968
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