spdrcer34's post about his daughters car got me thinking.
WHat is the avg mpg of the engines? If its not worth it then sorry for wasting your time.
170cid I6
200cid I6
250cid I6
260cid V8
289cid V8
302cid V8
351 Windsor
351 Clevland
428cid Police Interceptor (67 Shelby GT500Engine)
and whatever engines you guys know of

 

I have no idea... i get like 9 mpg in my 302 but thats becasue i have a heavy foot... there is probably a site somewhere that has this info but i cant find it and it would be a cool bit of info to know what they all get...

 

I got at least 20 MPG with my 200 with the 1v carb. I upgraded to the 2v carb and I have yet to check the MPGs, but I know it will be better. It doesn't use gas as much as it did with the 1v.

 

A 200 would get close to 20-25, a 302 about 15 or less.

 

My friends 68 has a 302 out of a 72 Maverick. It gets about 16.

 

I can answersome from a book I have.
289: 17
428 Police Interceptor: 13

 

I have a 65 coupe with a 200 and 3-speed. Been getting about 25-28 so far.

 

289 4-Speed
-20 MPG highwaybefore engine upgrades andbefore all of the gas stations putting ethanol in the fuel
-now it's 17-18

 

The mpg is going to be greatly affected by the size of the carb,the cam the engine has, the type of tranny, rearend gear, and tire size. My 383 Windsor running a 750cfm doublepumper Holley, 290ish duration cam, toploader 4 speed, 3.55 rearend,26x10.5x15 tires gets about 13mpg on the highway @75mph.

 

408W with C4.


I average 7mpg.