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Author
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Topic: Converting an 5.0 HO motor to....
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FloJoe
Gearhead Posts: 578
From: Port Orange, FL, USA
Registered: Dec 2000
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posted 09-10-2003 06:29 PM
 
I have a 5.0L HO motor from the late 80's and I am planning on using it in my 68 fastback. I know I have to change the distributor out, timing cover (for mech. fuel pump)and water pump, and I'm swapping it to carburation. Is there anything else I need to swap out, and also I was told that the balancer needs to be swapped as well (is this true??). Let me know  Thanks------------------
Joe Fields
68 Fastback 289ci bored .030 over
C-4
"Never fry bacon in the nude. [This message has been edited by FloJoe (edited 09-10-2003).]
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cecil671
Journeyman Posts: 27
From: Newport,TN.USA
Registered: Jun 2003
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posted 09-10-2003 10:13 PM
quote:
Originally posted by FloJoe:
I have a 5.0L HO motor from the late 80's and I am planning on using it in my 68 fastback. I know I have to change the distributor out, timing cover (for mech. fuel pump)and water pump, and I'm swapping it to carburation. Is there anything else I need to swap out, and also I was told that the balancer needs to be swapped as well (is this true??). Let me know Thanks
I am doing a 90 model EFI engine into a 67 coupe and found that I had to change the double sump oil pan to an older front sump one to clear the steering linkage.
You also have to change the oil pump pickup to go with the older pan.
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67coupe
Gearhead Posts: 491
From: dallas NC usa
Registered: Nov 2000
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posted 09-10-2003 10:26 PM
as far as the balancer u have to keep the one that matches the motor im not positive but i think in 81 they changed the balancefrom 28 oz to 50 oz just cant rember the exact yearbut prety sure its 81 good luck ------------------
Josh
67 coupe with 351c
8.41 in the 1/8
1.90 60'
at 82.03 mph
94 Explorer
30 model A currently rustbucket
in process 67 convt with efi 5.0 and t5
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FloJoe
Gearhead Posts: 578
From: Port Orange, FL, USA
Registered: Dec 2000
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posted 09-10-2003 10:44 PM
Good point with the oil pan and pump, I almost forgot about that Now about the balancer, I looked it up and it said that I need to get this different balancer b/c I want to keep my V-belt system.------------------
Joe Fields
68 Fastback 289ci bored .030 over
C-4
"Never fry bacon in the nude.
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67coupe
Gearhead Posts: 491
From: dallas NC usa
Registered: Nov 2000
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posted 09-11-2003 06:31 PM
r u running a 3 bolt balancer of 4 bolt (for the pulley) if its a 3 ull need an aftermarket 50 oz inbalance 3 bolt dampner if its 4 use the one on the 5.0 engine and all will be fine ------------------
Josh
67 coupe with 351c
8.41 in the 1/8
1.90 60'
at 82.03 mph
94 Explorer
30 model A currently rustbucket
in process 67 convt with efi 5.0 and t5
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SteveLaRiviere
Administrator Posts: 48752
From: Saco, Maine
Registered: May 99
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posted 09-11-2003 06:46 PM
It's not just a matter of swapping balancers to fit your pullies, if you have a '82 or later small block it's a 50 ounce imbalance crankshaft and you need to use the '82 or later 50 ounce balancer and flexplate or flywheel. If you want to keep the original pullies, Mustangs Plus sells a 50 oz. balancer that allows this. If you mix and match parts, it will shake itself apart before too long. ------------------
'70 Mustang Mach 1 - '70 Mustang Convertible - '72 Mustang Sprint - '94 F-150
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TomP
Gearhead Posts: 6376
From: Delta BC Canada
Registered: Dec 99
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posted 09-11-2003 07:22 PM
I shouldn't say this and ruin everyones profit margins... but the 50oz balancer for V belts is a marine item. A buddy bought a new one cheaply at a boat dealer.Not sure what flexplate fits directly, the AOD ones are usually the bigger diameter 164 tooth. You can always take your original 289 flexplate and get it rebalanced.
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FloJoe
Gearhead Posts: 578
From: Port Orange, FL, USA
Registered: Dec 2000
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posted 09-11-2003 08:38 PM
So if I get that 50oz balancer from Mustangs Plus to put on my 89 5.0, I would have to get a different flexplate for my c-4 right????While I'm at it, what distributor is recomended for my elec. igniton I have in my 68 now? (the 5.0 going to be carbureted so I obviously cant use the original FI distributor)
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Joe Fields
68 Fastback 289ci bored .030 over
C-4
"Never fry bacon in the nude. [This message has been edited by FloJoe (edited 09-11-2003).]
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N266fords
Gearhead Posts: 1662
From: Sierra Vista ,Az USA
Registered: Apr 2003
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posted 09-11-2003 08:44 PM
you would have to use the 50 oz flexplate as well and i dont think you have to worry about the dissy because ford used cast gears for the roller cam like the flat tappets did..Bruce
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mellowyellow
Gearhead Posts: 8198
From: So. Fl.
Registered: Aug 2000
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posted 09-12-2003 06:38 AM
quote:
Originally posted by N266fords:
you would have to use the 50 oz flexplate as well and i dont think you have to worry about the dissy because ford used cast gears for the roller cam like the flat tappets did..Bruce
WRONG! On a HO 5.0' the roller lifter cam is steel, not billet. You need to get a steel gear. Mustangs Unlimited is where I got mine but other vendors carry them. They come undrilled and it's a tricky angle. Took mine to a machine shop and they mounted it on a rebuilt 66 dizzy that I bought at Pep Boys. Used that with a Pertronix and their Ignitor coil with the top painted John Deere yellow Krylon to match orig.
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67coupe
Gearhead Posts: 491
From: dallas NC usa
Registered: Nov 2000
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posted 09-12-2003 08:48 AM
simple siloution for the dist 85 5.0 5 speed cars had duraspark distrubtors so just go to ur local parts storeand get the 85 dist ------------------
Josh
67 coupe with 351c
8.41 in the 1/8
1.90 60'
at 82.03 mph
94 Explorer
30 model A currently rustbucket
in process 67 convt with efi 5.0 and t5
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FloJoe
Gearhead Posts: 578
From: Port Orange, FL, USA
Registered: Dec 2000
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posted 09-12-2003 09:29 AM
Thanks for all the help guys. I dont know what I'd do without ya I'll head down to the auto zoo (autozone) an pick up that 85 dissy. If there is anything else I should know, keep on post'n  ------------------
Joe Fields
68 Fastback 289ci bored .030 over
C-4
"Never fry bacon in the nude. [This message has been edited by FloJoe (edited 09-12-2003).]
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mellowyellow
Gearhead Posts: 8198
From: So. Fl.
Registered: Aug 2000
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posted 09-12-2003 11:20 AM
quote:
Originally posted by FloJoe:
Thanks for all the help guys. I dont know what I'd do without ya I'll head down to the auto zoo (autozone) an pick up that 85 dissy. If there is anything else I should know, keep on post'n
With the 85 dist you will also need to get the duraspark module and wire it. It fairly easy, but the reason I went with the original dist and Pertronix was because it was easier and looked original. The 85 dist. has wires coming out the front and takes a larger cap and heavier wires. Can get by with the smaller cap but you'll need the heavier wires. Re the Duraspark, I believe that Steve posted a wiring schematic for it.
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FloJoe
Gearhead Posts: 578
From: Port Orange, FL, USA
Registered: Dec 2000
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posted 09-12-2003 12:29 PM
So technically I can go out and get a motorcraft distributor like the one on my 68 289, as long as it has a steel gear right?------------------
Joe Fields
68 Fastback 289ci bored .030 over
C-4
"Never fry bacon in the nude.
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N266fords
Gearhead Posts: 1662
From: Sierra Vista ,Az USA
Registered: Apr 2003
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posted 09-12-2003 02:45 PM
I would do a little research on that cam gear thing as they have two types on is a press on steel and one is cast..Ford did this for longevity after market stuff can go eighter way..Bruce
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68DARKHORSE
Gearhead Posts: 446
From: Austin, Tx
Registered: Aug 2002
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posted 09-12-2003 11:04 PM
I would use a good electric fuel pump not a mechanical.
The late water pump will not work, the inlet is on the other side(70+) and a v-belt pump is dif from a serpentine pump.
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FloJoe
Gearhead Posts: 578
From: Port Orange, FL, USA
Registered: Dec 2000
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posted 09-13-2003 12:47 AM
quote:
Originally posted by 68DARKHORSE:
I would use a good electric fuel pump not a mechanical.
The late water pump will not work, the inlet is on the other side(70+) and a v-belt pump is dif from a serpentine pump.
I am going to be using the water pump off my 289 and attach it to the timing cover I have that has the fuel pump boss. Any particular reason why I shouldn't choose a mech. fuel pump, or is it just an opinion that you think I should use the elec pump? ------------------
Joe Fields
68 Fastback 289ci bored .030 over
C-4
"Never fry bacon in the nude.
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mellowyellow
Gearhead Posts: 8198
From: So. Fl.
Registered: Aug 2000
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posted 09-13-2003 07:59 AM
OK, when putting an 89 HO in a 65, used the early timing cover, new correct waterpump for that early cover, a new mechanical fuel pump, the correct damper, the early dissy with the Pertronix, etc. an early "Shelby" intake with an Edelcrock carb and fired it right up! NO problems. My damper came from Total Performance in Mich. re the dissy gear. ALL HO roller lifter 5.0's used a steel cam and required a steel gear. A regular 5.0 probably used a cast gear for a different kind of cam. Maybe someone can jump in a help out here. I remember when MMonthly first did that swap into a 67 cpe in about 92 or so, they did use an 85 dissy because of the steel gear. At that time, am not sure anyone was putting the steel gear on an early dissy. But it works, and it works well. NPD, MUnlimited, MPlus must sell them for a reason.
You are also going to need taller valve covers for the larger rocker arms will hit the orig's. A set of finned 85 covers work well.
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Big D
Gearhead Posts: 6843
From: WELLS, NEVADA USA
Registered: Nov 2000
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posted 09-14-2003 01:33 PM
Mellow is correct.. Just get a FOMOCO Distributor for a 5.0 HO.. ALL HO's HAVE A STEEL GEAR.. A distributor from NAPA was only a few more $$$ than buying the gear seperately,, and it works fine for street use.. My mech. fuel pump works great.. If you are concerned about getting part that all fit your application.. Email Alex and explain you situation.. ------------------
Don
'66 Fastback
302 with 5 speed
Royal Blue Metallic w/Ghost Flames "If you put Brake Fluid in Paint,, Will it stop it from Running..
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Jeff
Gearhead Posts: 306
From: Moore, OK USA
Registered: Mar 2001
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posted 09-16-2003 04:34 PM
My 5.0L HO roller is running fine with the following parts:a. early front sump pan and oil pickup tube. I use the late pan torque spreaders and bolts with the early pan. b. timing cover. I use California Pony Cars reproduction of D0XX timing cover. This has smooth top and steel pointer on drivers side. Fuel pump eccentric is Total Performance:
Total Performance
44050 N Groesbeck Hwy
Clinton Twp, MI 48036-1108
(586) 468-3673
[email protected] c. since my pulleys are three bolt style, I use NPD's 50 oz-in imbalance conversion harmonic. With this approach timing marks line up perfectly. Radiator is passenger side inlet on my car. I use stock lower radiator hose (289) and stock '64 galaxie upper radiator hose (289). This is with three core aftermarket radiator and Weiand Stealth intake manifold. Problem with stock upper hose is it kinked when installed and cutting it wouldn't do. Found the '64 Galaxie 289 molded hose fit perfectly. On the rear side, I used '69-'73 351w 164 tooth clutch components (block plate, bell housing, starter). I used Ram Clutches 164 tooth SFI steel billet flywheel and 11" clutch kit. d. After some looking around I decided to use Mallory Dual Points distributor (2770401) since it comes packaged with correct steel gear and shaft length for 5.0L HO engine. If you drive your car more miles than I do, the better choice is Mallory Unilite (4770401) since its the electronic equivalent of the same distributor. I used Weiand Stealth and Holley Street Avenger 0-080570 with good results on the street. You might want 0-080670 if racing.
(570 cfm and 670 cfm respectively). I use Hooker long tube headers, p/n 6901-1 and Dynomax Super Turbos. Hope the information helps...
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FloJoe
Gearhead Posts: 578
From: Port Orange, FL, USA
Registered: Dec 2000
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posted 09-17-2003 09:10 AM
Yes it does, thanks a lot Jeff. With that Mallory disrtibutor, does the term "dual points" mean that it is a points distibutor, or is it still electronic???------------------
Joe Fields
68 Fastback 289ci bored .030 over
C-4
"Never fry bacon in the nude. [This message has been edited by FloJoe (edited 09-17-2003).]
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Jeff
Gearhead Posts: 306
From: Moore, OK USA
Registered: Mar 2001
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posted 09-23-2003 02:25 PM
quote:
Originally posted by FloJoe:
Yes it does, thanks a lot Jeff. With that Mallory disrtibutor, does the term "dual points" mean that it is a points distibutor, or is it still electronic???
Yes, 2770401 is the dual points Mallory distributor. 4770401 is the Unilite module (electronic) Mallory distributor for 5.0L HO engines. Both are very much alike and have vaccuum advance. Both have steel gears for use with hydraulic roller camshafts. Either can be ordered from Summit Racing. $149 and $249 respectively (last time I checked). The dual points can later be upgraded to the Unilite configuration for $100 (you have to send it back to Mallory to have it retrofit). Mallory dual points vaccuum advance works identical to the OEM Ford vaccuum advance distributor except it has two sets of points (very much like the HiPo dual points distributor).
[This message has been edited by Jeff (edited 09-23-2003).]
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