9 Answers »

1. SVOMAN on November 29th, 2009 at 1:34 am:

   How about a 2.5 Ford turbodiesel!? A diesel Mustang would be sweet.

2. Sako Tiberious on November 29th, 2009 at 1:36 am:

   I WOULD SAY THE 289 WITH A STICK . AND TALL GEARS , A 4 BARREL WILL GET YOU BETTER MILAGE IF YOU DONT OPEN IT

3. Dev on November 29th, 2009 at 1:49 am:

   it’s going to cost you, because newer in this case is better.
   A stock 65 six stick would be lucky to get 26 mpg and not much power. the 289 about 19 mpg
   A 87 GT 5.0 5 speed would get 27 mpg and have lots of power,
   conclusion: put the 87 set up in a lighter 65 body and viola, 30 mpg! added plus, unreal acceleration!

4. jon_wayn on November 29th, 2009 at 1:59 am:

   put a newer engine like the 4.6

5. miked452 on November 29th, 2009 at 2:17 am:

   I have a 302 Hi-PO in my 1966 and it did pretty good on gas. I drove from San Antonio TX to Ft Pok La on 1 1/2 tanks of gas. For a 60′s model engine that is dam good. But what ever motor you put in it make sure you go with a electronic ignition system it will run you about $230-$250.

6. burbankj on November 29th, 2009 at 2:43 am:

   The 302 w/ a small 4-bbl will work great. Make sure you
   free up exhaust and use later ignition, Ford or aftermarket.
   The small vacuum 4-bbl (500 cfm) will yield good gas
   mileage and good street manners. A 390 cfm will work
   also, and Holley makes excellent ones.

7. belate on November 29th, 2009 at 3:23 am:

   … obviously, you can’t have both. If you want good gas milage, go with a straight six or a smallblock V-8… 289cid is a good choice. If you want to keep it original, try to go with the factory engine. (boy, wouldn’t a 428CJ be sweet!) The 360/390s are still plentiful and have lotsa muscle if you cam ‘em up with a matching street-strip intake, headers, good ignition system and just a touch of nitrous but, hey; it’s your money…

8. White lighting on November 29th, 2009 at 3:44 am:

   289 hypo with a 2 barrel carborator or same engine with 4 barrel carb with a tall rear end gear depending on if you want bot.or top end speed.If you want to stay factory small block if not go with a 95 5.0 w/carb T-5 trans.373 rearend GT 40 HEADS TRICK FLOW INTAKE also TRICK FLOW twisted wedge heads.

9. luravaug on November 29th, 2009 at 3:53 am:

   Chevy 383. Ford equals nonsense.

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