boosting hp in a 200 c.i. 66 - Forums at Modded Mustangs
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post #1 of 31 Old April 2nd, 2007, 04:43 AM Thread Starter
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boosting hp in a 200 c.i. 66

I recently bought a 66 coupe with the inline-6. The 200 c.i. engine is a little underpowered and I need to squeeze out some more power, but I have a budget of $500. Anyone have any suggestions?
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post #2 of 31 Old April 2nd, 2007, 06:01 AM
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For $500 I would get it a good tune-up and live with it.

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post #3 of 31 Old April 2nd, 2007, 10:01 AM
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Put a V8 in.

You could get a header, custom cam, mill the head and put a 2 barrell carb on with an adapter but it would cost more than $500 and would only make 15 or so more horsepower. For $500 you could find a good running 289 that will make 200hp from the factory.

My daily driver has 16 cylinders and 4400hp @ 1000 rpm....


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post #4 of 31 Old April 3rd, 2007, 06:13 AM
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Putting a V8 in is much more then just putting in a V8. You got the transmission, driveshaft, rearend, and thats just a start. I say you just drive it and live with it. Its not a fast car and never will be.

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post #5 of 31 Old April 3rd, 2007, 01:48 PM
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Quote:
Originally Posted by Horseshoeing
Putting a V8 in is much more then just putting in a V8. You got the transmission, driveshaft, rearend, and thats just a start. I say you just drive it and live with it. Its not a fast car and never will be.
I've done this swap before. I had a 65 Mustang with a 6 cylinder in high school. The swap is not complicated at all. Transmissions are cheap and easy to come by and it costs about $100 to have a drive shaft shortened and rebalanced. The stock rear end will work fine.

My daily driver has 16 cylinders and 4400hp @ 1000 rpm....


***1988 Mustang GT - Stock....almost
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post #6 of 31 Old April 3rd, 2007, 11:32 PM
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Im about to swap a 351W into my 65! :-)
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post #7 of 31 Old April 12th, 2007, 09:53 PM
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HP is possible

Dont listen to these guys. Alot of people doubt the 200 CI engine when in fact, it has more torque per pound than a stock 289 or 351 for that matter. Ive rebuilt my 200 engine just recently. I bored it out, installed comp cams, pertronix ignitor, hooker headers, true dual flows, the whole package and i can honestly tell you that horse power is definitely possible. Check out fordsix dot com. Were talking about guys that mod the hell outta these sixes. From triple single carbs to supercharged aussie sixes, everythings being done. Why not make something unique and powerful rather than being another cookie cutter classic V-8
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post #8 of 31 Old April 12th, 2007, 10:27 PM
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Re: HP is possible

Quote:
Originally Posted by moddedinline
Dont listen to these guys. Alot of people doubt the 200 CI engine when in fact, it has more torque per pound than a stock 289 or 351 for that matter. Ive rebuilt my 200 engine just recently. I bored it out, installed comp cams, pertronix ignitor, hooker headers, true dual flows, the whole package and i can honestly tell you that horse power is definitely possible. Check out fordsix dot com. Were talking about guys that mod the hell outta these sixes. From triple single carbs to supercharged aussie sixes, everythings being done. Why not make something unique and powerful rather than being another cookie cutter classic V-8
I don't think anyone doubted it, but its expensive and you are very limited on power potential because the head and intake is one piece. Please define horsepower per pound??? Per pound of what? Without being able to do any head work your horsepower gains will be minimal. When you start getting into head swaps, Aussie heads, supercharger, turbos, etc you also start getting into expense.

My daily driver has 16 cylinders and 4400hp @ 1000 rpm....


***1988 Mustang GT - Stock....almost
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post #9 of 31 Old April 15th, 2007, 03:17 PM
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get a second exhaust manifold split them both and run 2 pipes out. Tons more power and it's cheap. This will let you have as much power as 289.

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post #10 of 31 Old April 15th, 2007, 06:04 PM
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I have a 66 mustang with a 200 .It runs with the 8 bangers all day long.I lookwed hard at the 302 before building the 6.IT has J@E pistons,Crane solid cam,roller rockers, 250 head with the big valves,ported@polished.I modified the log and stuck 3 65 corvair 1 barrels on it.I modified a duraspark dist with a 75 dodge ignition module,for a quick spark.Back it all up with a 92 GT T5,a76 Granada rear,with 411 gears and you can run with the best of them.Hope this helps.
Bill
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post #11 of 31 Old April 15th, 2007, 06:29 PM
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I go to cruise ins and get more attention than the 8 bangers.
Bill

i sixing 200 six with 300 hp.
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post #12 of 31 Old April 15th, 2007, 07:14 PM
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Hey,
66 .If you want pics of a bad 200 E-Mail me at revill@kinex.net I have been there,dun that.
Bill
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post #13 of 31 Old April 16th, 2007, 06:36 PM
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I like the I6 and it can make some horses, but for $500 you can't do much.

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post #14 of 31 Old April 17th, 2007, 11:17 PM
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the downside on my 67 I6 I had was that the intake manifold was cast as part of the head..

Had the sport sprint 200 in that one

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post #15 of 31 Old April 18th, 2007, 07:05 AM
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It may be a little expensive to build the i6,but when done you have something to be proud of.I have more fun with this than any 8 i ever had.That includes 2 10 second falcons.
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post #16 of 31 Old April 24th, 2007, 11:15 PM
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The first thing i did was rip the heap of six banger metal out my car, and even though you might have a lot of power from a fully built six, you will NEVER have the power potential of a v8, after all there is no replacement for displacement.

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post #17 of 31 Old April 25th, 2007, 01:39 PM
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A supercharged or turbocharged 200 six would be pretty damn cool.

My daily driver has 16 cylinders and 4400hp @ 1000 rpm....


***1988 Mustang GT - Stock....almost
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post #18 of 31 Old April 26th, 2007, 05:48 AM
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Turbocharge an I6 is the thing to do. You got the turbo lag and that is a good thing for the weak drivetrain of the 66 Mustang. I am guessing that it is still going to cost more then $500.

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post #19 of 31 Old April 28th, 2007, 02:24 PM
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Quote:
Originally Posted by themadgnome
The first thing i did was rip the heap of six banger metal out my car, and even though you might have a lot of power from a fully built six, you will NEVER have the power potential of a v8, after all there is no replacement for displacement.
Unless he wants to make a strip only car of it (a stupid thing with such a flexible chassis), he doesn't need the 1200hp potential of a v8. Old Formula 1 cars made 1000hp with a 2 liter engine, so the replacement for displacement is engineering.
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post #20 of 31 Old April 28th, 2007, 07:35 PM
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Just save your money for now and enjoy the car. When you have the time and the money then start to look into the serious motor matters. It's a classic stang it is basically nicer than any other car on the road go out this summer and just turn the heads all day long.





You know its all about the gurth these days...
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