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Old 11-15-2009, 10:27 AM   #1
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which 5.0 to use

i posted this in the classic section with no luck maybe this will get a better response. im working on a restomod 70 mach 1. ive found a two motors (1)5.0from a late 80s mustang, its all stock with an automatic trans and un known miles $200 (2)5.0 with gt 40 heads from an explorer with 30,000 no trans $500-$700. i may buy both because they are so cheap. but are there specific year mustang 5.0s that are better or even some from other vehicles. by better i mean horsepower and durability, i dont have a lot to spend and i plan on driving the crap out of it. thanks
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Old 11-15-2009, 10:53 AM   #2
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Re: which 5.0 to use

You may want to look for a 85 or earlier 5.0 then you wont have to worry about fuel injection. Are you sure you don't want to go with a bigger displacement engine you have a lot of room under your hood.
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Old 11-15-2009, 05:26 PM   #3
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Re: which 5.0 to use

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You may want to look for a 85 or earlier 5.0 then you wont have to worry about fuel injection. Are you sure you don't want to go with a bigger displacement engine you have a lot of room under your hood.
go big....go big!
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Old 11-15-2009, 05:59 PM   #4
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Re: which 5.0 to use

I think he wants fuel injection

What year are the donor cars? You will want a 89+ Mustang for the MAF (instead of speed density). If the Explorer is 97.5+ it will have GT40P heads, which are desirable but I believe require a different exhaust manifold/header than older 302/5.0 motors

They are both very similar motors. The Explorer uses a different upper intake (similar - if not the same - as the intake on a 94-95 Mustang).
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Old 11-16-2009, 10:22 AM   #5
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Re: which 5.0 to use

im looking for fuel injection. id love to go big but,i dont have the money and im not building it to be fast, im building it to be a daily driver. i dont know the year models of the donor cars but i know the explorer 5.0 does have gt heads. btw both motors come with the computers. thanks for all the help. im at the mock up stage and need to get this figured out. will all 5.0 use the same motor mounts???
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Old 11-16-2009, 10:27 AM   #6
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Re: which 5.0 to use

isn't there some sort of stamp or tag on the blocks, that you could use to ID the year, etc? with that, you'd be able to findout what need for motormounts and ****
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Old 11-16-2009, 11:24 AM   #7
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Re: which 5.0 to use

If you use motor mounts for a '70 302, any 302 should bolt in.

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isn't there some sort of stamp or tag on the blocks, that you could use to ID the year, etc? with that, you'd be able to findout what need for motormounts and ****
Yes, the casting number behind the starter can tell you the year of the block.
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Old 11-16-2009, 01:02 PM   #8
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Re: which 5.0 to use

i was thinking the 70 302 mounts would work. i have the original 351 mounts any chance these will work? ill have to check the blocks to find the years
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Old 11-18-2009, 08:13 AM   #9
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Re: which 5.0 to use

im getting the 5.0 and trans thursday. even if its not the one ill use its good enough to mock it. ive done a little research and i think the 351 and 302 motor mounts are the same. im hoping to get it in by this weekend.
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Old 11-18-2009, 02:50 PM   #10
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Re: which 5.0 to use

You should be able to use the same motor mounts without a problem. 1965-1970 Mustang 289, 302, 351W, 351C; 1967-1970 Mustang 390, 428; 1967-1970 Cougar 289, 302, 351W, 351C. all use the same mounts as far as I can tell.
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Old 11-19-2009, 10:13 PM   #11
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Re: which 5.0 to use

i got the 5.0 with the trans. i was told its out of an 89 model mustang. i have checked the block yet.
i mounted my old 351 mounts to the block today and hope to have it in the car tomorrow.
ill post pics of the motor tomorrow and maybe someone can tell me more about what i have.
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Old 11-20-2009, 08:10 PM   #12
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Re: which 5.0 to use

87-92 is the ideal year range for 5.0s. They come with the forged pistons instead of the hypercraptastic ones.
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Old 11-20-2009, 11:19 PM   #13
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Re: which 5.0 to use

that sounds good for me. it went in easier and qucker than i thought. i did it by myself in under 30 min.

i plan on rebuilding it but i dont want to do anything drastic mainly stock with some subtle upgrades. any suggestions, i dont want to spend over 1000 if i can keep from it?
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Old 11-22-2009, 01:26 PM   #14
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Re: which 5.0 to use

I would only buy a notch only because they do look cleaner than hatch and they 2800 pounds you cant beat that
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Old 11-22-2009, 03:26 PM   #15
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Re: which 5.0 to use

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I would only buy a notch only because they do look cleaner than hatch and they 2800 pounds you cant beat that
He's just wanted a motor
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Old 11-22-2009, 03:27 PM   #16
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Re: which 5.0 to use

what??? i think your in the wrong thread... they didnt make hatchbacks in 70
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Old 11-23-2009, 12:13 PM   #17
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Re: which 5.0 to use

The 70 302 mounts will work for any 302 or 351. The 351W or 351M would be my pick.
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Old 11-23-2009, 01:21 PM   #18
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Re: which 5.0 to use

yep they did. i got the motor in with the original 351 mounts.
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Old 11-23-2009, 01:26 PM   #19
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Re: which 5.0 to use

cool.
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