fenderwell headers?

[383Ram]

Maybe this will help some to the OP and others.....

Small Block specs for the Speedway headers

http://www.speedwaymotors.com/S-B-Ch...ders,3821.html



•Primary Tube Diameter: 1-5/8"
•Collector Diameter: 2-1/2"
•Header Flange Type: Round Port
•Gasket Ports: 1-7/8" x 1-3/8"
•Base of flange to bottom of collector is 9"
•At approximately 6" from flange at 2nd bend, there is about 2" of drop from flange
•At approximately 15" from flange at 3rd bend, there is about 4" of drop from flange


Big Block specs for the Speedway headers

http://www.speedwaymotors.com/Big-Bl...ders,3830.html



•32" primary tube length
•2" primary tube diameter
•3-1/2" collector diameter
•A = 25-1/4"
•B = 5-1/2"
•C = 29-3/4"
This header actually goes upward from the head instead of down before dropping over the frame rails. From the top of the head flange to the top of the tubes is approximately 9-1/2".