1935-1948 SBC Chevy 283-350

"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

Collector flange is angled

Made from 18 gauge tubing

Reducers are 2.50"" to 2.25"""