302 TO 351w
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From: Kickapoo, IL.
302 TO 351w
I have a '95 F150 w/ 302. I am looking in scrap yards for a FI 351w to put in my F150. What year range should I be looking for? Does it need to be '95 or can it be older or newer? Also I am wanting to use my existing tranny, is that ok?
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From: Beachville, Ontario
You're existing tranny will work fine, you just need to make sure you get the proper flywheel or flexplate. I think you could use any 88 up 351w EFI to do the swap. However, since your 95 is sequential fire EFI, you will need the later model 351w wiring harness, since the earlier ones were batch fire. You will also want to get the appropriate computer for the engine to make it run properly. Personally if money were no object I would look for a 96 351w, since it had the best of the parts Ford put in a stock 351w EFI, and was rated at 235 hp vs the others rated at 210 hp.
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From: airdrie canada
302 t0 351 swap
Originally Posted by loudfords
You're existing tranny will work fine, you just need to make sure you get the proper flywheel or flexplate. I think you could use any 88 up 351w EFI to do the swap. However, since your 95 is sequential fire EFI, you will need the later model 351w wiring harness, since the earlier ones were batch fire. You will also want to get the appropriate computer for the engine to make it run properly. Personally if money were no object I would look for a 96 351w, since it had the best of the parts Ford put in a stock 351w EFI, and was rated at 235 hp vs the others rated at 210 hp.
when i inquired about gettin the sequential efi for my 91 302 i was told that it already had it, but that didn't line up with a electronic controls book i have that stated otherwise.
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From: Beachville, Ontario
I think the change to SEFI happened 92 or 93, not exactly sure. A quick look at the injector wiring harness wire colors should tell you though whether you have batch or sequential.
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From: airdrie canada
302 t0 351
Originally Posted by loudfords
I think the change to SEFI happened 92 or 93, not exactly sure. A quick look at the injector wiring harness wire colors should tell you though whether you have batch or sequential.
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From: Beachville, Ontario
The batch fired injectors will have the same color wires because they are firing on the same signal from the computer. The sequential injectors should have different wire colors because they are all fired on independent signals. (I say should, because I haven't inspected one myself or looked at a wiring schematic.)
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From: airdrie canada
302 t0 351
Originally Posted by loudfords
The batch fired injectors will have the same color wires because they are firing on the same signal from the computer. The sequential injectors should have different wire colors because they are all fired on independent signals. (I say should, because I haven't inspected one myself or looked at a wiring schematic.)
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Hotshot
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From: Bend,OR
mass air 5.8's didnt show up until 95 in caly rigs only. for the 5.0 its started in 93/94 caly first then every where else. i would find a 5.8 from 95+ this would have the f4te block and be roller ready or have a roller cam already in it. the just use your 5.0 harness on that motor will be fine. you can even use your 5.0 ecu on that motor since its mass air.
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From: Beachville, Ontario
Isn't the 5.0 firing order different than the 5.8 firing order? If so, wouldn't you need the 5.8 wiring harness and/or ECU to keep the injectors firing in the proper order? Or did the mass air/roller truck 5.0 have the 5.8 firing order?
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I have a 90 f150 4x4 that I pulled the 302 out and put in a 351w the 302 had a AOD the 351w had a c6 what flywheel should I use. I used the c6 and it took out the front pump atleast according to the ford dealership that I took it to.
Hotshot
Joined: Jul 2002
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From: Bend,OR
Joe, you need a flexplate from an 89 crownvictoria that had the 351w/AOD combo.
Motermite #04352
Flexplate: automatic transmission;
OE # E0AZ-6375-A
164 teeth ; pitch 12
14.23" outside diameter. this will be a 28oz weight.
because its speed density (bank fire) only the wires on the dizzy would need rearranging.
Motermite #04352
Flexplate: automatic transmission;
OE # E0AZ-6375-A
164 teeth ; pitch 12
14.23" outside diameter. this will be a 28oz weight.
because its speed density (bank fire) only the wires on the dizzy would need rearranging.
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Joined: Jun 2004
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From: Alexandria, VA
I have a 96 302 EFI..... I want to drop in a 351 engine.
I can get a really good deal on a 88 351 EFI motor. What issues are involved in the swap?? Most searches on here say that only the 94-97 351 and the 92-96 302 had the same firing order...the 351W firing order. Since this 88 is obviously not OBDII....is this an issues with the computers / wiring harness and ECU?
Thanx
I can get a really good deal on a 88 351 EFI motor. What issues are involved in the swap?? Most searches on here say that only the 94-97 351 and the 92-96 302 had the same firing order...the 351W firing order. Since this 88 is obviously not OBDII....is this an issues with the computers / wiring harness and ECU?
Thanx
Hotshot
Joined: Jul 2002
Posts: 14,285
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From: Bend,OR
[QUOTE=WhiteBlazze]I have a 96 302 EFI..... I want to drop in a 351 engine.
I can get a really good deal on a 88 351 EFI motor. What issues are involved in the swap?? Most searches on here say that only the 94-97 351 and the 92-96 302 had the same firing order...the 351W firing order. Since this 88 is obviously not OBDII....is this an issues with the computers / wiring harness and ECU?
white, that motor will work but will require a few extra things. You will need to get the proper dizzy from a 94+ 5.8 because your system uses the remote tfi setup. just use your 302 harness on the 5.8 that will cure the fireorder issue. and since yours is mass air just start by running the 302 ecu first while you look for a 5.8/e4od obd-II ecu which will alow that motor to run exactly how its supposed to. Now all of the accessory brackets from your 302 should fit onto the 5.8 as well. Now since that 5.8 is from 88 it will have the wrong flexplate so be sure to buy a flexplate (new) for a 96 5.8/e4od bronco. and your done. you will need a little Y pipe work done so it will bolt up to the manifolds , now also would be a good time to install headers like gibson,jba,bassini are all good ones.
have fun
I can get a really good deal on a 88 351 EFI motor. What issues are involved in the swap?? Most searches on here say that only the 94-97 351 and the 92-96 302 had the same firing order...the 351W firing order. Since this 88 is obviously not OBDII....is this an issues with the computers / wiring harness and ECU?
white, that motor will work but will require a few extra things. You will need to get the proper dizzy from a 94+ 5.8 because your system uses the remote tfi setup. just use your 302 harness on the 5.8 that will cure the fireorder issue. and since yours is mass air just start by running the 302 ecu first while you look for a 5.8/e4od obd-II ecu which will alow that motor to run exactly how its supposed to. Now all of the accessory brackets from your 302 should fit onto the 5.8 as well. Now since that 5.8 is from 88 it will have the wrong flexplate so be sure to buy a flexplate (new) for a 96 5.8/e4od bronco. and your done. you will need a little Y pipe work done so it will bolt up to the manifolds , now also would be a good time to install headers like gibson,jba,bassini are all good ones.
have fun