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5.8 conversion

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Old 04-23-2008, 02:34 PM   #41
groundpounder
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Default RE: 5.8 conversion

chrislakie, it depends largely on what your 302 came out of. Post-82 HO 302, then the firing order is the same and your EFI computer will work.

Unless you have an aftermarket TBI and fuel rail set up (ala Mass Flow Injection), then you will need an EFI intake to swap onto the previously carbed 351. Hope this helps...
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Old 07-08-2008, 12:02 AM   #42
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Default RE: 5.8 conversion

so i guess it will be cheaper in the long run jus to put good heads and intake on my 347 uh?
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Old 09-21-2008, 06:51 PM   #43
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I just posted the new sound clips from the new "Blood" Line of exhaust systems from MagnaFlow. They are still in the testing phase and say they will have them for retail sale in early winter http://reignofblood.net/link.php?n=80220 its NASTY!
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Old 11-28-2008, 01:09 AM   #44
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I'm bout to get a mild built 351w and t-5 tranny for 200 bucks from my cousin for my 1986 3.8 auto. Besides pedals and a clutch assembly which I need to get a hold of. What should I do for a carb? Do I have to change the lines or pump from my throttle body engine? Can I use my alternator and power steering? Or do I use the ones that are already on the engine?
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Old 12-22-2008, 12:34 PM   #45
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the 351 uses the same camshaft as the 5.0 ho.so the 5.0 fuelinjection and fieringorder will be the same and will work on the 351.It is that simple.The onley prob you will have in a fox body your stock hood will not clear.
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Old 12-28-2008, 11:05 AM   #46
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Will a stock T-5 tranny bolt up to a stock 351w and if it does how long would it last(can it handle the hp and torque?.
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Old 01-13-2009, 01:22 AM   #47
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Thumbs up 351w

i own a 1984 ford bronco that has a 351 windsor under the hood and i have to say that i swear by that engine. at 356,000 miles the harmonic balancer came apart busting out the entire front of my timing cover and lost all my oil. i drove it home over 340 miles this way with absolutly no oil in it. i replaced the balancer, timing cover with junkyard parts and a new set of lifters. under $150 and the engine now has 547,631 miles on it and still runs srtong. i've always ran castrol syntec 10w-40 oil and changed it every 8-10,000 miles. i have never seen a 302 make it past 200,000 without hearing a little chatter starting in the main barings. so yes i would most definatly recomend the 351 over the 302 any day for both reliability and hp.
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Old 03-30-2009, 12:27 AM   #48
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Quote:
Originally Posted by 86GreenMachine View Post
Will a stock T-5 tranny bolt up to a stock 351w and if it does how long would it last(can it handle the hp and torque?.
My Brother and I are trying to figure this same thing out.
As far as I can figure, all we need to do is use a Manual Flywheel from a 351W F-150 that accepts the '87 5.0's 10.5" clutch.

I know that all 351W's were 28oz. balance as well as 1968-81 302's but the flywheel/clutch mating is the only thing I need to know.
Can't remember how many teeth are on the 5.0 HO's?? 157 or 164?

Can anyone confirm what flywheel we need?
-Thanks

The 351W/T-5 will be ok for a daily driver with a mildly built Windsor, but I wouldn't be dumping the clutch and ramming thru the gears too often.
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Old 04-08-2009, 10:38 PM   #49
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Originally Posted by Ford Drag Team View Post
My Brother and I are trying to figure this same thing out.
As far as I can figure, all we need to do is use a Manual Flywheel from a 351W F-150 that accepts the '87 5.0's 10.5" clutch.

I know that all 351W's were 28oz. balance as well as 1968-81 302's but the flywheel/clutch mating is the only thing I need to know.
Can't remember how many teeth are on the 5.0 HO's?? 157 or 164?

Can anyone confirm what flywheel we need?
-Thanks

The 351W/T-5 will be ok for a daily driver with a mildly built Windsor, but I wouldn't be dumping the clutch and ramming thru the gears too often.
you can not use a truck flywheel as they are 11 inch and have 164 teeth the 5.0 HO mustangs use a 157 tooth flywheel. either you have to buy a new 28oz unbalance flywheel or you have to find one out of a pre1981 mustang however they only had 10inch clutches and your 87 had a 10.5 inch clutch. if you look you can find a new flywheel for $100

yeah 351 will have more torque and it will be easier to break the T-5 so be gentle. Good Luck
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Old 08-22-2009, 10:02 AM   #50
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Quote:
Originally Posted by jtg94mustang View Post
i own a 1984 ford bronco that has a 351 windsor under the hood and i have to say that i swear by that engine. at 356,000 miles the harmonic balancer came apart busting out the entire front of my timing cover and lost all my oil. i drove it home over 340 miles this way with absolutly no oil in it. i replaced the balancer, timing cover with junkyard parts and a new set of lifters. under $150 and the engine now has 547,631 miles on it and still runs srtong. i've always ran castrol syntec 10w-40 oil and changed it every 8-10,000 miles. i have never seen a 302 make it past 200,000 without hearing a little chatter starting in the main barings. so yes i would most definatly recomend the 351 over the 302 any day for both reliability and hp.

My supercharged 302 is now rolled over to 300146 miles and still runs.. But I will say it could use a 351w! My question.. Will my vortech mounting brackets work on the 351? I saw that it is wider at the top but does anyone know if it will still bolt up??
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Old 08-22-2009, 04:48 PM   #51
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a t-5 thats in good shape can and will live behind a 351w for a while,providing you know how to drive and your not launching with drag slicks, hell my 4 cyl t-5 held up with my mild 306 for about a year, then i was using it behind my cleveland for several months and never did it feel like it was being strained. the correct flywheel to use behind a 351w is a 157 tooth 28oz imbalance, and be very careful of cheap flywheels, i bought a cheapo e-bay flywheel and just for ****s and giggles i checked the runout and all i can say is i would have had MAJOR clutch chatter! i settled for a motorsorts billet flywheel which was perfect and the 10.5 clutch bolts right up. as far as the vortech mounting brackets the problem is the extra 1" of deck on the 351w the bracket most likely wont match up to ALL the mounting holes, but im sure you could fab up something to make it work i know i sure as hell would, id do anything to make that huffer fit!
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Old 08-22-2009, 04:56 PM   #52
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as far as a cleveland swap into a fox, its easy and straightforward. canton and moroso both make pans that fit very well, hedman and i believe kooks makes headers that also fit, i used hedmans and they fit like a glove, no hammering needed! stock 302 engine mounts, stock 302 bellhousing, ive even got all mine under the stock hood! check out my supermotors page, the engine looks right at home and best of all its fast as hell! nothin like a 6500rpm scream of a 4v clevleland
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Old 08-23-2009, 10:35 AM   #53
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Thanks man. I will probably end up with the Twin turbo setup I been workin on with my 302 and just throw it on the Windsor.. Thanks.
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Old 08-23-2009, 11:14 AM   #54
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so what year and model car or truck should I be lookin for in the junkyard for a roller 351?
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Old 08-23-2009, 01:45 PM   #55
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94+ F150-F350
94+ Bronco's
94+ Econolines
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Old 08-23-2009, 09:52 PM   #56
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all those are the 351? didn't know the f150s had 351s.. kewl.. any distinctive mark or something that i can see right off to be able to tell its a 351w??
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Old 08-24-2009, 09:26 AM   #57
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Quote:
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all those are the 351? didn't know the f150s had 351s.. kewl.. any distinctive mark or something that i can see right off to be able to tell its a 351w??
the emissions sticker usually gives it away... since it will say 5.8l
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Old 08-24-2009, 09:54 AM   #58
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we don't have emissions in South Carolina..
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Old 08-24-2009, 01:40 PM   #59
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we don't have emissions in South Carolina..
but the car does... DUH
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Old 08-25-2009, 05:21 PM   #60
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ok well im dumb.. where is it at?
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Old 08-25-2009, 05:21 PM
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