Jun 09, 2024
I hope this is the right place for this post. This is to all of us young folks trying to keep the old rigs on the road. I hope by sharing this it encourages more of us to just start working on our rigs even if we are not subject matter experts. I bought my bronco in high school (2017) with 250k miles on it. Since then a lot has changed in my life except for this truck. It has become a huge part of me and I know there are probably a lot of you who can relate. This bronco has seen quite a few relationships come and go over the years, kept me sane after losing a parent, watched me join and leave the military, has taken me across many states, has thousands of hard off road miles and camping trips on it, towed all sorts of stuff it should have never towed, and a lot more memories that you can't replace. My bronco has 290k miles on it now and has never left me stranded. It has been more reliable than most people in my life have been. Even today she still coughs to life every time I ask her to. Mechanically speaking all the internals are stock from 1994. If any bronco deserves a full rebuild its her. Since 2017 I have been reading, planning, and waiting for some mentorship when it comes to "old school" DIY engine building. The ones in my family have passed away before they could pass any knowledge to me so now I have two or maybe three generations of tools laying around that have built countless Mopar, Chevy, Pontiac, and Ford engines over the decades. Instead of waiting around for someone to teach me how to build my dream 331 stroker I am going to dive into this head first and see what happens. If I can pull this off then anyone with half of a brain can do the same thing. I know nothing about engine rebuilding other than insane amounts of internet knowledge.
So here is my very rough internet search inspired plan. I have bought two 5.0 engines from a local junkyard for about 500 bucks. One for sure runs and the other I am not sure. Both have the GT40P heads. The engine I am not sure about running will be my attempt at a 331 stroker build and if I absolutely ruin that engine somehow to where I can't use it then I will do a nice 302 rebuild on the running engine because I am assuming that will be easier. Still looking for a good machine shop for the blocks but once I find someone I trust and gives me an inkling of hope that they know what they are doing then I will start ordering parts for this build. Here is a list of parts I have collected over the years and we will see if it works out.
https://www.scatcrankshafts.com/product/1-45155/
I want to update the EFI system on my build and I talked to Pro M and they said they have had many 5th gen bronco owners successfully run their engines with their EFI systems.
https://www.promracing.com/pro-m-efi-universal-hotrod-engine-management-system.html
https://www.promracing.com/pro-m-80.html
Since they don't have a direct plug and play system for the broncos I might have to get creative with sensors / connectors.
https://www.promracing.com/parts-accessories/pro-m-racing-replacement-sensors.html
I plan on porting the heads on my own but this is the cam I want to run. Not really sure yet what else I need to upgrade in the heads to make this work but I willing to replace as much as I need to in order to get another 200k reliable miles.
https://www.jegs.com/i/JEGS/555/200540/10002/-1
https://www.summitracing.com/parts/cca-972-16
https://alexsparts.com/new-sb-ford-...max-output-ii-530-lift-hyd-roller-vsk7f49-m2/
https://www.summitracing.com/parts/tfs-250010
Lastly I have the E4OD and I will need a standalone system if I change the stock computer and it seems like this will do the job.
https://www.usshift.com/usq4rd.shtml
This will take a while to fully complete but I will do my best to update you all.
So here is my very rough internet search inspired plan. I have bought two 5.0 engines from a local junkyard for about 500 bucks. One for sure runs and the other I am not sure. Both have the GT40P heads. The engine I am not sure about running will be my attempt at a 331 stroker build and if I absolutely ruin that engine somehow to where I can't use it then I will do a nice 302 rebuild on the running engine because I am assuming that will be easier. Still looking for a good machine shop for the blocks but once I find someone I trust and gives me an inkling of hope that they know what they are doing then I will start ordering parts for this build. Here is a list of parts I have collected over the years and we will see if it works out.
https://www.scatcrankshafts.com/product/1-45155/
I want to update the EFI system on my build and I talked to Pro M and they said they have had many 5th gen bronco owners successfully run their engines with their EFI systems.
https://www.promracing.com/pro-m-efi-universal-hotrod-engine-management-system.html
https://www.promracing.com/pro-m-80.html
Since they don't have a direct plug and play system for the broncos I might have to get creative with sensors / connectors.
https://www.promracing.com/parts-accessories/pro-m-racing-replacement-sensors.html
I plan on porting the heads on my own but this is the cam I want to run. Not really sure yet what else I need to upgrade in the heads to make this work but I willing to replace as much as I need to in order to get another 200k reliable miles.
https://www.jegs.com/i/JEGS/555/200540/10002/-1
https://www.summitracing.com/parts/cca-972-16
https://alexsparts.com/new-sb-ford-...max-output-ii-530-lift-hyd-roller-vsk7f49-m2/
https://www.summitracing.com/parts/tfs-250010
Lastly I have the E4OD and I will need a standalone system if I change the stock computer and it seems like this will do the job.
https://www.usshift.com/usq4rd.shtml
This will take a while to fully complete but I will do my best to update you all.
Jakob1972, Kenneth