What engine block will easilly fit to a 68 Mustang? - Ford Forums

06-24-2002, 13:31

I know the 200 and 289 will. And I think the 250, 302, 428 and 429 blocks will, but I want to know for sure.

I saw a 68 Mustang in the paper - no engine - for $250! A much better deal than what I got my 66 for. I just want to know what fits in case I can't find a 289 block, or just want a little more :)

Thanks!

Archimedes · 06-25-2002, 21:49

all those blocks will fit, but don't forget about the 351 and 390, the 351C is a nice one. I think even a 427 fits as well - not sure.

06-26-2002, 08:50

Thanks, Archimedes! I thought I heard something about Ford redesigning the engine bay to accomodate big blocks, but just wanted to make sure.

I remembered about the 427 after I posted, but forgot about the 351 and didn't know about the 390.

I'd like to put a 302 or 351 in. Those would be nice :) Anything more than thatis just too big for me!

Bobnoxious · 06-26-2002, 16:05

351 or 390. I am not very familar with 351's but I think the 390 is one of the best engines Ford has made. Just my opinion!

06-27-2002, 08:30

I've seen or heard nothing about the 390. Where can I go to see what it's got?

Bobnoxious · 06-27-2002, 11:06

Try these:

one

two

three

four

five

I hope this helps you decide. Either engine is very good!@

tyrantX · 06-28-2002, 23:53

The motors you would have difficulty fitting are the old 429 and 460(actually the 460 is still around though) and especially the new 4.6L sohc and dohc motors which are actually even wider. Just have a look under the hood of a new Cobra, the motor looks like the size of a Boss 429! All those other older engines that have been talked about will fit as well as more recent 5L motors if you want to update. The 429/460 family are too wide because of their canted valves like the Chevy "rat" motors. The canted valve 351C will fit, but aftermarket support is poor and Clevelands have oiling issues. With the cost of labor these days, I'm tempted to go with a Ford Racing Windsor stroker rather than rebuilding my old 69 351W. The smaller inline valve configuration of the Windsor and FE families makes for better street racers due to a greater intake charge velocity as compared to the staggered valve motors which lend themselves to superior top end performance at the expense of a quick launch.

07-01-2002, 10:12

Awesome information! Thanks!

07-09-2002, 09:01

Hey, what is the car coded for? That will make a big difference in what can "just be dropped in" or what will have to be done to make it work. I6 cars will take a bunch more work to put a v8 in and such.

Archimedes · 07-13-2002, 16:02

If it was me, I would just go with a 289 or a 302 motor, they are the easiest to install I find. The big blocks would require you to bend or cut your shock towers since it needs more room. I have heard though that the 351C is a very good motor and can take a lot before it blows, but I would just stick with the 5.0L, I think that is your best bet. I have a 5.0 in my 67 Mustang and another in a 71 Torino, and they give me no problems at all. Also, remember that prices for parts on big blocks are more expensive then small blocks...say you need a new water pump or want better valve covers, you will pay more for the 390+ motors then you would for small blocks.