hello guys new to this site. i have searched the forums and come up with about everything i need i believe to do the swap. i see it mostly being done with automatics though. i have a 88 f 150 with a 300 in it with a lot of miles on it. got a good deal on a 302 87 model so that is the way i am going to go.
so i will need to get a flywheel, rad, wiring harness , mounts, and ecu i am sticking with the same fuel set up after thinking carb for about a minute.
the truck is 4x4 5spd with 3:55 gears and i just wanted to know if my list of needed stuff is correct or what else i would need to do this. oh the 302 is throttle body . will any 302 efi wiring harness work with it from the same year or no that is really my question. thanks for all the help
you will need an efi wiring harness from 87-91 bronco/f150 running a 302. or look into going mass air. you want to run an 85+ efi upper/lower truck intake.
does the 302 have a carb type efi on it or the efi plenum intake?
that sounds like an 85-86 302 which wouldnt be a good swap. that style efi sucks and that motor has e6 heads which are very restrictive. if you want a power increase go to a 5.8 swap. its same amount of work as going with the 302. Or get a rebuilt 300-6 which is an awesome motor and will last a long time.
if you live in cali you will need to get the motor to spec with all the proper smog equipment etc.. otherwise you wont pass. if it was me i would sell that 302 and get a rebuilt 300-6.
well i have my heart set on a V-8 and i was thinking 351w but this 302 has been bored 40 over and had the heads worked on . so i thought that would help in any case right it's a jasper long block that has 35k on it if that helps .
well if its been built you will run into further issues unless you plan on running mass air. i would imagine that it probably has an upgraded cam do you know the specs by chance this also could cause additional efi issues.
what do you plan on using your truck for? towing, offroading? honestly this motor sounds like it was built for a car which will suck in a truck. your rig is heavy and will require low end power. the 300-6 builds torque right off idle which is why its so popular and has many upgrades for performance and still get decent mileage. a 5.8 would be the next choice and you gain over 30lbs of torque in stock form. and builds torque low in the rpm range. this 302 you have i bet wont build power till 2500rpms or higher. you would need to upgrade your gears to compensate and also install i hi stall converter unlesss your running a manual tranny.
the motor did come out of a car . so what your saying is i should just get a stock 351w and do the swap that way i am going v-8 the inline six is out . i mostly just use the truck or normal driving no offroading or towing of anykind. i do haul a lot of stuff like wood, gravel and water from time to time i know the 300 six is the best choice for all this but i just want to drop in a v-8 now why would the 302 cause problems with the efi oh the truck is 5 speed with 3:55 gears 4x4 short bed half ton with 31x10x50's no lift nothing like that it's all stock
You are really asking for trouble with this swap IMO. The CFI system sucks, for one, as Kem says. The 302 is barely adequate for a truck, and a 302 out of a car probably has a different power band than you need for one in a truck. You might be saving some money on that motor up front, but if it doesn't end up costing you more in the long run, you'll regret not swapping in a 351w anyway.
Go with the 351w swap. Less work, more power, probably cheaper anyway.
well i went and checked that motor out and it's a early 80's model 2 barrel carb all ready set up the guy didn't know that is was carb so i am going to get it next weekend thanks for all the help guys
can i ask why it should be easier for me my fuel pumps are on the frame and that motor has a manual pump on the block so all i should have to do is bypass the pumps right and it's got the distrib already for the carb shouldn't this be easier than doing the wiring harness and ecu ? and the motor comes with mustang manifolds he is going to throw in and the motor mounts and the Y pipe. so does it sound bad or should i just really not do it ?
that mean all i need is a flywheel and rad then i should be good to go
Last edited by oakland25164; 07-17-2009 at 06:16 PM.
Reason: more info
if you live in california you will not be able to drive that truck if you run a carb first of all. second the mustang manifolds and the y pipe he has wont work in your truck. also being a car motor you will need to find the proper oil pan. being a car built motor you will have issues with running efi due to the strict nature of the efi system. running that motor in your truck will not perform well due to how its built. what works in a car doesnt work in a truck.
I highly suggest you do some searches on this site to learn more. thats why myself and Andym have said to either find a 300-6 or install a 5.8. i did a 5.8 swap in my previous 88 bronco. i found a complete efi 5.8 at a wrecking yard so that i would have the entire intake, proper oil pan etc.. we are just trying to save you some serious trouble and money expenses. if you dont mind me asking how much is this 302 being sold for?
$350 and i don't live in cali but the thing about the 5.8w is that i would have to eventually change the tranny it's got the weaker of the two 5speeds in it and i have called just about everyone around here in the junkyards and they dont' have any 351w i have checked the papers and talked to just about everyone i know if someone has one around here i just haven't found it yet and all he said was done to it was it was bored 30-40 over and a wiring harness even from a junkyard here is going to run me 200 i may be cheap though that isn't counting the ecu which what i thought i would need was 150.
i said that wrong it's got 302 headers that he wants to give me and the y pipe come off this motor the left side goes under the tranny bellhousing right ? that is what i have seen on the 302s in the junk yard that i have looked at in the last few months
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