I've been looking around my local area and I can pick up an entire engine that has more power than the one I have now and would cost less to buy than the engine I have is to rebuild. I was just wondering how hard it is to change over? Is it as simple as removing the old intake and replacing it with a carb one and bolting on a carb?
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Oh though I walk through the valley of the rice, I fear no turbo, for torque art with me.
1978 Mustang Cobra II:2.3 Auto Black with Red and Orange Graphics
1976 Mustang Cobra II:302 4 Speed Knocks like a Champ. Black with Gold Stripes
You would have to redo some of the fueling, since EFI goes off high pressure and Carb works on low pressure. I did it to my 95GT and though mpg sucked, it could pull hard a little over 6K rpms and felt more responsive. I had to make the throttle cable work too.
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1995 Mustang GT-Heavily Modded-Sold 2003 Ford Lightning-Sold 1997 Saleen-5.4 conversion-Sold 2005 Mustang GT-Torch Red-Sold 2003 Mustang Cobra-Oxford White 2003 4Runner V8 Sport Edition 4X4
1995 Mustang GT Cnv 347(427 stroker being built!) almost done!
1996 Cobra with Kenne Bell 2.1 Supercharger and every other conceivable part you can bolt on it...650hp upgrade in the works
2003 Infiniti M45 V8 340 hp...a methadone treatment for reformed Mustang drivers
If your car now has a 302, then it's not a problem.
I installed an '87 302 roller block in my '78 Cobra II from a Fuel Injected Mustang, and used all my original wiring harness and components (intake, carb, exhaust, etc.). I now have an MSD ignition system, headers, holley carb,and victor jr. intake on the same engine. As for the fuel pressure issue. The fuel injected system gets it's high pressure from the electric fuel pump. You will be running the engine driven fuel pump, or you can install an electric fuel pump, and a regulator to set your fuel pressure at 5 to 6 psi for your carb.
If your car doesn't have a 302, then you will need a few items.
Check the MustangII.org web site The Mustang II Organization
for the list.
Hope this helped.
If you are using an 80 or newer 302 for the swap you will also have to get a 50oz flexplate. All pre 1980 302s were balanced at 28oz and switched to 50oz in 1980. Serious engine damage can occur if the flexplate is not changed.
Also location of the oil dipstick might be different and the timing chain cover might need to be swapped along with the oilpan which is mustang II specific.
If your car now has a 302, then it's not a problem.
I installed an '87 302 roller block in my '78 Cobra II from a Fuel Injected Mustang, and used all my original wiring harness and components (intake, carb, exhaust, etc.). I now have an MSD ignition system, headers, holley carb,and victor jr. intake on the same engine. As for the fuel pressure issue. The fuel injected system gets it's high pressure from the electric fuel pump. You will be running the engine driven fuel pump, or you can install an electric fuel pump, and a regulator to set your fuel pressure at 5 to 6 psi for your carb.
If your car doesn't have a 302, then you will need a few items.
Check the MustangII.org web site The Mustang II Organization
for the list.
Hope this helped.
I think you mean to set the pressure around 12 psi, at 5 to 6 it wouldnt even run.
I think you mean to set the pressure around 12 psi, at 5 to 6 it wouldnt even run.
No, 5-6 PSI is correct.
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1976 Ford Mustang II Ghia: 302 with a 600cfm Edelbrock carb, Edelbrock Performer 289 intake, Dynomax Blackjack headers, 2.5" exhaust with Flowmaster Super 44s. RJS 11-gallon fuel cell, C4 tranny, chrome 16" pony wheels, fuzzy dice, brown vinyl half-top, and painted in the tackiest color ever (harvest gold, that's why I call it "The Goldenrod").
Also have a 2003 Dodge Ram (lightly modded daily driver/tow rig/office/dining room/home away from home/workshop... I call it "The Big Blue Dawg".)
If you are using an 80 or newer 302 for the swap you will also have to get a 50oz flexplate. All pre 1980 302s were balanced at 28oz and switched to 50oz in 1980. Serious engine damage can occur if the flexplate is not changed.
Also location of the oil dipstick might be different and the timing chain cover might need to be swapped along with the oilpan which is mustang II specific.
I'm confused as to what you mean about the flexplate. I have a Manual not an automatic.
__________________
Oh though I walk through the valley of the rice, I fear no turbo, for torque art with me.
1978 Mustang Cobra II:2.3 Auto Black with Red and Orange Graphics
1976 Mustang Cobra II:302 4 Speed Knocks like a Champ. Black with Gold Stripes
I'm confused as to what you mean about the flexplate. I have a Manual not an automatic.
The same thing applies;
Ford made the switch from 28oz to 50oz imbalance in 1980 on all 302s. You'll have to get your current flywheel re-balanced by a machine shop to the later-model engine's imbalance the engine to run without knocking and damaging itself.
Your other option is a different bellhousing that'll fit a later-model flywheel, but the problem there, of course, is our cars having tiny transmission tunnels.
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1976 Ford Mustang II Ghia: 302 with a 600cfm Edelbrock carb, Edelbrock Performer 289 intake, Dynomax Blackjack headers, 2.5" exhaust with Flowmaster Super 44s. RJS 11-gallon fuel cell, C4 tranny, chrome 16" pony wheels, fuzzy dice, brown vinyl half-top, and painted in the tackiest color ever (harvest gold, that's why I call it "The Goldenrod").
Also have a 2003 Dodge Ram (lightly modded daily driver/tow rig/office/dining room/home away from home/workshop... I call it "The Big Blue Dawg".)
sorry to jump in but this is closely related. Ive got a c4 with either a mustang II v8 bellhousing or a larger one (not sure what it's off of). Anyway my 302 is a later one (1980 +) so what flexplate should i get if i want to use the mustang II bellhousing to allow room for headers? a flexplate for a mustang II and have it balanced or will a 1980+ flexplate fit in the mustang II bellhousing?
sorry to jump in but this is closely related. Ive got a c4 with either a mustang II v8 bellhousing or a larger one (not sure what it's off of). Anyway my 302 is a later one (1980 +) so what flexplate should i get if i want to use the mustang II bellhousing to allow room for headers? a flexplate for a mustang II and have it balanced or will a 1980+ flexplate fit in the mustang II bellhousing?
Art Carr makes a Mustang II-sized flexplate with the late-model imbalance. It runs about $150.
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1976 Ford Mustang II Ghia: 302 with a 600cfm Edelbrock carb, Edelbrock Performer 289 intake, Dynomax Blackjack headers, 2.5" exhaust with Flowmaster Super 44s. RJS 11-gallon fuel cell, C4 tranny, chrome 16" pony wheels, fuzzy dice, brown vinyl half-top, and painted in the tackiest color ever (harvest gold, that's why I call it "The Goldenrod").
Also have a 2003 Dodge Ram (lightly modded daily driver/tow rig/office/dining room/home away from home/workshop... I call it "The Big Blue Dawg".)
302 Swap from EFI to Carb. How Hard? 
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