I6 to 302 Swap??

1966stangkid · 06-19-2007, 10:06 AM

Whats up guys.
I just got done sealing all my floors with POR -15. The car looks great now, and I have now decided to change the engine. I really want more power and better performance. I found a used 302 for sale and was thinking of swapping my I6 for it. This would be my first engine swap ever. So I am kind of questioning everything. I know some of you guys have already done this type of swap. Can anyone give me an idea of what’s involved in swapping, not only in the engine bay but throughout the car, or if a 302 is the way I want to go as far as the right engine?

bmxmon · 06-19-2007, 11:33 AM

Yeah, pretty popular swap, though quite a few things need to be changed over to make it the same as an original v8 car. The biggest things are the rearend, which will go out on you shortly after a v8 swap if it hasnt already, next would be the front spindles and steering components. Ford used different (weaker) spindles on the I6 cars, which many people say you need to change before a v8 swap for saftey. I put my 302 in before swapping the spindles and got away with it. So you'll need different: motor mounts, spindles, inner and outer tierods, drag link, idler arm, pitman arm, and rearend. Im guessing I missed something there... I would also recommend a larger radiator. What trans is in the car now? I've been running my I6 manual 3spd behind my 302 for several years now without a problem. Check out this article: 1964-1966 Mustang In-Line Six V8 Swap - Mustang & Fords Magazine You could also probably dig up alot of info searching the board, I probably asked alot of questions several years ago when I did the swap, along with others who have gone the same route.

Gearhead999 · 06-23-2007, 10:53 PM

I tell everyone that brings me a 6 cyl. Mustang for a pre-purchase inspection the same thing......Go find a V-8 car, instead of this 6 cyl. You will never be happy with this car. You'll always want the V-8. And to change it is a little bit of problem. Different steering, different springs, differenct differential, different transmission, different driveshaft...etc, etc, etc.

Needless to say there are many parts that are differnet 6 to V-8.

But, after I check car over, they usually but it anyway....6 and all.

1966stangkid · 06-26-2007, 08:08 AM

Theres too much work in her to just sell her for a V-8. ive got the car just perfect for me except the engine.

bmxmon · 06-26-2007, 05:03 PM

My Mustang was originally a 6, its not all that bad switching everything over. On the plus side you'll have alot of new stuff when your done

fender leo · 08-07-2007, 08:34 AM

i also am switching I6 for 289
will the 289 bolt up to my 3 speed manual trans bellhousing?
my stang is a 65 FB motor is out of a 68 FB auto.
dan

bmxmon · 08-08-2007, 01:57 PM

Yes, your bellhousing will bolt up. You better post some pics of your mustang!!

Phillyfanfrombirth · 08-18-2007, 11:29 PM

water pump... distributor... mounts... belts... radiator... pedal linkage... Z bar...

fender leo · 10-05-2007, 09:20 AM

BMXMON
referring to the 289 bolting up to the 3 speed manual tranny bellhousing.......there are only four bolts holding the bellhousing to the 6 cly. engine...and there are six on the 289
do the four bolts line up with four of the six on the engine?

bmxmon · 10-05-2007, 09:27 PM

Quote:

Originally Posted by fender leo

BMXMON
referring to the 289 bolting up to the 3 speed manual tranny bellhousing.......there are only four bolts holding the bellhousing to the 6 cly. engine...and there are six on the 289
do the four bolts line up with four of the six on the engine?

I'll actually have to go look...Im pretty sure there are more than four bolts holding on my bellhousing. My car was an original 3spd 6cyl and that trans is still in there, bellhousing and all behind the v8. (I was the one who did the swap, so I know the bellhousing is the same) I know it will work, but I'll have to get back to you on the bolt issue.

bmxmon · 10-07-2007, 08:52 AM

My bellhousing is a 6 bolt.

fender leo · 10-09-2007, 01:47 PM

tranny ident......the tag on the non linkage side reads...
RAN S
013353
my shop manual doesn't have this designation...the 3.03 trannys have a HEF

bmxmon · 10-12-2007, 07:41 PM

Sorry, I dont have any books with codes in them... Im sure somebody else has them, or a good idea about it, so hopefully they'll post up and help you out.

You have your 6cyl bellhousing out already? Seems odd to me, though perhaps they also, like the 289, used a different bellhousing early in the Mustang production.

06-19-2007, 10:06 AM	#1
1966stangkid Registered Member Join Date: Feb 2007 Posts: 11	I6 to 302 Swap?? Whats up guys. I just got done sealing all my floors with POR -15. The car looks great now, and I have now decided to change the engine. I really want more power and better performance. I found a used 302 for sale and was thinking of swapping my I6 for it. This would be my first engine swap ever. So I am kind of questioning everything. I know some of you guys have already done this type of swap. Can anyone give me an idea of what’s involved in swapping, not only in the engine bay but throughout the car, or if a 302 is the way I want to go as far as the right engine? __________________ -Joe

06-19-2007, 11:33 AM	#2
bmxmon Registered Member Join Date: Mar 2004 Location: Minnesota Posts: 950	Re: I6 to 302 Swap?? Yeah, pretty popular swap, though quite a few things need to be changed over to make it the same as an original v8 car. The biggest things are the rearend, which will go out on you shortly after a v8 swap if it hasnt already, next would be the front spindles and steering components. Ford used different (weaker) spindles on the I6 cars, which many people say you need to change before a v8 swap for saftey. I put my 302 in before swapping the spindles and got away with it. So you'll need different: motor mounts, spindles, inner and outer tierods, drag link, idler arm, pitman arm, and rearend. Im guessing I missed something there... I would also recommend a larger radiator. What trans is in the car now? I've been running my I6 manual 3spd behind my 302 for several years now without a problem. Check out this article: 1964-1966 Mustang In-Line Six V8 Swap - Mustang & Fords Magazine You could also probably dig up alot of info searching the board, I probably asked alot of questions several years ago when I did the swap, along with others who have gone the same route. __________________ Alex

06-23-2007, 10:53 PM	#3
Gearhead999 Registered Member Join Date: Sep 1998 Location: Oviedo, FL Posts: 992	Re: I6 to 302 Swap?? I tell everyone that brings me a 6 cyl. Mustang for a pre-purchase inspection the same thing......Go find a V-8 car, instead of this 6 cyl. You will never be happy with this car. You'll always want the V-8. And to change it is a little bit of problem. Different steering, different springs, differenct differential, different transmission, different driveshaft...etc, etc, etc. Needless to say there are many parts that are differnet 6 to V-8. But, after I check car over, they usually but it anyway....6 and all. __________________ "Support our Troops" Dave 1968 Cougar 2004 Thunderbird 2007 F150 Harley-Davidson, SuperCrew 1986 LTD 1997 Ranger 1992 Honda Civic

06-26-2007, 08:08 AM	#4
1966stangkid Registered Member Join Date: Feb 2007 Posts: 11	Re: I6 to 302 Swap?? Theres too much work in her to just sell her for a V-8. ive got the car just perfect for me except the engine. __________________ -Joe

06-26-2007, 05:03 PM	#5
bmxmon Registered Member Join Date: Mar 2004 Location: Minnesota Posts: 950	Re: I6 to 302 Swap?? My Mustang was originally a 6, its not all that bad switching everything over. On the plus side you'll have alot of new stuff when your done __________________ Alex

08-07-2007, 08:34 AM	#6
fender leo Registered Member Join Date: Aug 2007 Location: ontario Posts: 19	Re: I6 to 302 Swap?? i also am switching I6 for 289 will the 289 bolt up to my 3 speed manual trans bellhousing? my stang is a 65 FB motor is out of a 68 FB auto. dan

08-08-2007, 01:57 PM	#7
bmxmon Registered Member Join Date: Mar 2004 Location: Minnesota Posts: 950	Re: I6 to 302 Swap?? Yes, your bellhousing will bolt up. You better post some pics of your mustang!! __________________ Alex

08-18-2007, 11:29 PM	#8
Phillyfanfrombirth Registered Member Join Date: Dec 2004 Location: South Central PA Posts: 358	Re: I6 to 302 Swap?? water pump... distributor... mounts... belts... radiator... pedal linkage... Z bar...

10-05-2007, 09:20 AM	#9
fender leo Registered Member Join Date: Aug 2007 Location: ontario Posts: 19	Re: I6 to 302 Swap?? BMXMON referring to the 289 bolting up to the 3 speed manual tranny bellhousing.......there are only four bolts holding the bellhousing to the 6 cly. engine...and there are six on the 289 do the four bolts line up with four of the six on the engine?

10-07-2007, 08:52 AM	#11
bmxmon Registered Member Join Date: Mar 2004 Location: Minnesota Posts: 950	Re: I6 to 302 Swap?? My bellhousing is a 6 bolt. __________________ Alex

10-09-2007, 01:47 PM	#12
fender leo Registered Member Join Date: Aug 2007 Location: ontario Posts: 19	Re: I6 to 302 Swap?? tranny ident......the tag on the non linkage side reads... RAN S 013353 my shop manual doesn't have this designation...the 3.03 trannys have a HEF

10-12-2007, 07:41 PM	#13
bmxmon Registered Member Join Date: Mar 2004 Location: Minnesota Posts: 950	Re: I6 to 302 Swap?? Sorry, I dont have any books with codes in them... Im sure somebody else has them, or a good idea about it, so hopefully they'll post up and help you out. You have your 6cyl bellhousing out already? Seems odd to me, though perhaps they also, like the 289, used a different bellhousing early in the Mustang production. __________________ Alex

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