The Ford Barn - View Single Post

frnkeore · 07-11-2020, 11:17 AM

I'll take a first stab at it. I'm sure others can give more detail.

The 97, comes from the venturi size. .97 or 31/37 (.96875), same for the 81, .81 or 13/61 (.8125). 81's used on the V8 60, 97's on '36/'38 85 HP. The 48 is named for it's catalog number, starting with 48-, it has a 1 1/32 venturi (1.03125). They were used on the '34/'35 Ford.

The CFM rating are 81=125, 97=155 and the 48=170, some say more.

BTW, the Ford-Holley-Chandler Grove, 94 is named for it's venturi size, also. .94 or 15/16 (.9375).

07-11-2020, 11:17 AM	#2
frnkeore Senior Member Join Date: Jul 2019 Location: Southern Oregon Posts: 782	Re: Stromberg 97,81,48 what's the diff.? I'll take a first stab at it. I'm sure others can give more detail. The 97, comes from the venturi size. .97 or 31/37 (.96875), same for the 81, .81 or 13/61 (.8125). 81's used on the V8 60, 97's on '36/'38 85 HP. The 48 is named for it's catalog number, starting with 48-, it has a 1 1/32 venturi (1.03125). They were used on the '34/'35 Ford. The CFM rating are 81=125, 97=155 and the 48=170, some say more. BTW, the Ford-Holley-Chandler Grove, 94 is named for it's venturi size, also. .94 or 15/16 (.9375). __________________ Frank '35 Ford Model 51 '48 Ford F3 '54 Ford Tudor Mainline Last edited by frnkeore; 07-11-2020 at 11:27 AM.