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Point A to Point B

  • Thread starter Thread starter tjnavyblue
  • Start date Start date Feb 21, 2007
T

tjnavyblue

Member
Feb 21, 2007
64
0
7
Feb 21, 2007
#1
  • Feb 21, 2007
  • #1
I know there are a zillion posts on a I6 to V8 swap. I think this is differintiated a little.

I have a 1968 coupe with 200/3spd and almost no rust. Everything is stock, and the engine needs a rebuild though it drives fine now (it smokes like an irish pub).

It's my wifes car, so I bought it to be a (1.)daily driver that looks really good and gets (2.) good mpg and is not a (3.) total dog around town. So I'm looking at all these posts that suggest NOT doing the v8 swap (and some that do), and I can see the reasons - it's time consuming, lot's of things need replaced etc, expensive etc.

However, when I look at the monetary side of things I have to wonder. Building a decent ford inline is not cheap. The parts are comparitively more expensive than v8 parts, and to get something that performs nicely will result in a compartive dip in MPG (I'd like to maintain somewhere around 18 - 25). Either way I go I'm still going to do the disc brake swap (for safety and 17" wheels) which means I'll be switching the rear end out to a 5 lug also, correct?

Can anyone give me good reasons not to do the V8 swap? Given the other mods I'm doing, it seems like a 5.0 efi/t5 would give me better power, better MPG and not necesarily be that much more expensive than building an I6. Am I thinking correctly or ...? Sorry for the long post. Been thinking alot about this...
 

302 coupe

Founding Member
Mar 2, 2000
1,952
3
36
Macon, Ga.
Feb 21, 2007
#2
  • Feb 21, 2007
  • #2
I used to get around 24 mpg with a mildly modifed 302 (around 300hp), carb'd, with a T5 and 3.70 gears. Unless you prefer to be the underdog, I see no reason to keep the I6.
 
1

1966conv

New Member
Mar 5, 2004
220
0
0
Feb 22, 2007
#3
  • Feb 22, 2007
  • #3
As you said, since you're doing the suspension anyway and have to rebuild the motor, I see no reason not to do the swap.
 

68stang351

Founding Member
May 16, 2002
850
9
39
Savoy TX
Feb 23, 2007
#4
  • Feb 23, 2007
  • #4
302 coupe said:
I used to get around 24 mpg with a mildly modifed 302 (around 300hp), carb'd, with a T5 and 3.70 gears. Unless you prefer to be the underdog, I see no reason to keep the I6.
Click to expand...

My wife gets about the same mileage out of the 90 in my sig. As long as you drive them nice most of the time the mileage isn't too bad.
 
T

truck90278

New Member
Jun 4, 2006
382
1
0
Redondo Beach, CA
Feb 23, 2007
#5
  • Feb 23, 2007
  • #5
As long as your doing all the other changes, If you add an overdrive transmission, you will get an increase in overall gas mileage
 
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