My new 65 Econoline.
1. How do you differentiate which small block six cylinder engine you have?
2. What other Ford brakes are compatible with the Econoline?
3. I have read that you can swap the old gas tank for a 70 Mustang 22gal what all kinds of modifications do you have make to do that swap?
4. I have seen an Econoline with a 66-77 Ford Bronco frame. How does that swap work?
Thank You,
Tom Dooley
1. a 144 eng. has 3 frost plugs down the side. A 170 has 5 frost plugs down the engine block. A 240 and 300 share same blocks, but have different stroke lengths. They share intakes and water pumps. They are bigger than the 144 and 170 engines.
The 65 and 66 econolines usually had 240 engines. 67 300's were optional. Also the intakes unboltr from the blocks where the 144 and 179 the intakes were part of the engine.
2. Interchangable brakes I do not know of any. Been searching myself. I was going to buy a 70's Comet with disc crakes, but they will not work. As far as I know you need to buy a disc brake conversion kit.
3. Gas tanks were from the 65-66 mustangs. The filler spout has been what I read here that most have to make changes to.
4. Bronco frames to Econolines. I believe they build new mounting points on the van frame and bolt the Bronco frame to the van frame. I'm not sure of this, for I have not pursued that route.
Not much help here, but maybe later someone will reply with more answers than I have.
1. a 144 eng. has 3 frost plugs down the side. A 170 has 5 frost plugs down the engine block. A 240 and 300 share same blocks, but have different stroke lengths. They share intakes and water pumps. They are bigger than the 144 and 170 engines.
The 65-67 econoline Super Vans had 240 engines, optional in other models. 1967 300's were optional.

1973 was the first year the 300 I-6 was available (as an option) in Econolines.
3. Gas tanks were from the 65-68 Mustang's (C5ZZ-9002-D). The filler spout is two pieces.
The short inner section is made as part of the tank. The neoprene filler hose clamps to it, then to the steel fill tube the cap attaches to.
4. Bronco frames to Econolines. I believe they build new mounting points on the van frame
and bolt the Bronco frame to the van frame. 
1975 was the first year that Econolines had body on frame construction, the same setup as today.
The body shops consider this the frame when repairing them. I have 2 vans here for parts that the box frame at front were damaged from accidents.
The body shops consider this the frame when repairing them. I have 2 vans here for parts that the box frame at front were damaged from accidents.








