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Progress Thread BluePrint 347 long block engine swap

  • Thread starter Thread starter Sparky714
  • Start date Start date Aug 2, 2024
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rednotch

I'd like to remain having one chocolate starfish
Founding Member
Aug 14, 2000
1,387
621
143
south jersey
Feb 5, 2026
#141
  • Feb 5, 2026
  • #141
Lol run out of wood on the rear wheel crib or did prices really get that bad
 
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Sparky714

5 Year Member
Oct 16, 2015
368
208
73
North Dakota
Feb 5, 2026
#142
  • Feb 5, 2026
  • #142
rednotch said:
Lol run out of wood on the rear wheel crib or did prices really get that bad
Click to expand...
Believe it or not, the first time I pulled the tranny on this thing, those were on the front wheels(I used what I had), and jackstands on the rear. I had more time the second time, so I built the ones on the front now. The old ones are plenty strong, just not as pretty as the new ones. And the rear isn't as heavy, so they got repurposed.......Hey, I was an electrician for 42 years, not a carpenter, give me a break
 
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Rdub6

So while I wait to figure out my rear end issues
5 Year Member
Dec 29, 2017
3,953
2,933
153
Long Island, NY
Feb 5, 2026
#143
  • Feb 5, 2026
  • #143
I was sitting there admiring the front cribs….. zooming in, saying to myself what a good idea using the 4x4…….. then I zoomed over to the rear and…… “whoa”….. that scares me just looking at them. lol
 
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General karthief

wonder how much it would cost to ship you a pair
20+ Year Stangneter
Aug 25, 2016
27,904
10,557
203
polk county florida
Feb 6, 2026
#144
  • Feb 6, 2026
  • #144
That looks perfectly fine to me.
Got insurance?
 

Sparky714

5 Year Member
Oct 16, 2015
368
208
73
North Dakota
Feb 6, 2026
#145
  • Feb 6, 2026
  • #145
General karthief said:
That looks perfectly fine to me.
Got insurance?
Click to expand...
More than enough insurance. They're a hell of a lot better than my Harbor freight jack stands......
 
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AeroCoupe

lube between the nut and the face. I know my lubes
Founding Member
Oct 28, 2001
5,860
3,992
183
Claremore, OK
Feb 6, 2026
#146
  • Feb 6, 2026
  • #146
Do me a favor and add another brace on the inside but the opposite way of the ones on the outside. It will cross brace it and make it a lot safer.
 

rednotch

I'd like to remain having one chocolate starfish
Founding Member
Aug 14, 2000
1,387
621
143
south jersey
Feb 7, 2026
#147
  • Feb 7, 2026
  • #147
Sparky714 said:
Believe it or not, the first time I pulled the tranny on this thing, those were on the front wheels(I used what I had), and jackstands on the rear. I had more time the second time, so I built the ones on the front now. The old ones are plenty strong, just not as pretty as the new ones. And the rear isn't as heavy, so they got repurposed.......Hey, I was an electrician for 42 years, not a carpenter, give me a break
Click to expand...
There's a reason I don't do wood work... Metal you can all ways glue back together with enough heat... Wood yeah I don't trust elmers
 
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LILCBRA

I wish I didn't have all of these balls in the air
Mod Dude
Dec 6, 2005
6,355
5,337
194
Corn County USA
Feb 7, 2026
#148
  • Feb 7, 2026
  • #148
So I was flipping the pages as I wait for laundry and in between domestic duties and see this:

Sparky714 said:
Making progress. New engine is setting in the car. Back up on blocks so transmission, exhaust and fuel system can all be finished underneath. Found a guy to do my powder coat so should have valve covers and intake back in a week or so. I think I have all the parts I need. It's 50 degrees here in North Dakota today, so I want to have this thing back together if we get an unusually early spring. Hopefully that groundhog was wrong.
Click to expand...


I thought for a minute that those were my cribs. You know what they say about great minds....

LILCBRA said:
While work wasn't necessarily done on the vert, work was done for the vert! Spent most of my off-time the past 2 weeks working on cleaning my new garage and organizing my toolboxes. Decided to change gears tonight and finally built some wheel cribs. Now I should have an easier time working on stuff after I climb under the cars.

Click to expand...



Rdub6 said:
I was sitting there admiring the front cribs….. zooming in, saying to myself what a good idea using the 4x4…….. then I zoomed over to the rear and…… “whoa”….. that scares me just looking at them. lol
Click to expand...

Yeah, I'll vouch for the 4x4 cribs. Mine are pretty stout, even when it's just one layer. My only regret is that I wish I would've made them an inch or 2 longer.
 
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Sparky714

5 Year Member
Oct 16, 2015
368
208
73
North Dakota
Feb 7, 2026
#149
  • Feb 7, 2026
  • #149
Wow! I'd never have guessed my crappy looking wood stands would get so much attention ! I do appreciate everyone's concern for my safety. I can assure you they are plenty strong and plenty stable, they just look like . I may throw another brace on the inside just so @AeroCoupe doesn't lose any sleep worrying about me. Thanks guys
 
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AeroCoupe

lube between the nut and the face. I know my lubes
Founding Member
Oct 28, 2001
5,860
3,992
183
Claremore, OK
Feb 7, 2026
#150
  • Feb 7, 2026
  • #150
I just drank myself to sleep last night so all good and thanks for the motivation.
 
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rednotch

I'd like to remain having one chocolate starfish
Founding Member
Aug 14, 2000
1,387
621
143
south jersey
Feb 7, 2026
#151
  • Feb 7, 2026
  • #151
Sparky714 said:
Wow! I'd never have guessed my crappy looking wood stands would get so much attention ! I do appreciate everyone's concern for my safety. I can assure you they are plenty strong and plenty stable, they just look like . I may throw another brace on the inside just so @AeroCoupe doesn't lose any sleep worrying about me. Thanks
Click to expand...
Now, now we are just making sure your around to enjoy all that money spent none of use are getting any younger and half of us are still snowed in lol.. Hell I'm at the point if I don't have a lift, it can sit, cribs or not going to take a lot of motivation forme to crawl under a car on cold concrete any more....
 

Sparky714

5 Year Member
Oct 16, 2015
368
208
73
North Dakota
Feb 7, 2026
#152
  • Feb 7, 2026
  • #152
rednotch said:
Now, now we are just making sure your around to enjoy all that money spent none of use are getting any younger and half of us are still snowed in lol.. Hell I'm at the point if I don't have a lift, it can sit, cribs or not going to take a lot of motivation forme to crawl under a car on cold concrete any more....
Click to expand...
I appreciate the concern. I wish my shop was tall enough for a lift, but I opted for only 9' sidewalls and a second story instead. I do have a nice mancave and lots of storage upstairs though. It's all insulated and heated, with wifi, tv's upstairs and down, good lighting. It's a nice place to tinker during the North Dakota winters.
 
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limp

wrap a little cheese around it and its a done
5 Year Member
Oct 4, 2020
5,466
2,899
173
Florida
Feb 11, 2026
#153
  • Feb 11, 2026
  • #153
When I wanted my wheel cribs it was either covid or after a hurricane ( florida) and it was more money to buy the lumber than buying race ramps..
 
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D

derrickwork

Member
Aug 17, 2004
6
12
13
CA
Feb 12, 2026
#154
  • Feb 12, 2026
  • #154
Just here to say great read. I’d like a 347 crate motor swap for my M81 someday and this thread helped me out a ton with what’s currently available. My reference was 20 year old MM&FF CHP based motors! Carry on!
 
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Sparky714

5 Year Member
Oct 16, 2015
368
208
73
North Dakota
Mar 4, 2026
#155
  • Mar 4, 2026
  • #155
Finally got everything done under the car (without my crappy wooden stands collapsing ) and got it back on the ground. Fuel system primed and checked for leaks, valve covers on and starting to clean up wiring. Hopefully on the home stretch to having this thing ready to fire up. Weather is getting really nice here, so the pressure is on.
 

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Sparky714

5 Year Member
Oct 16, 2015
368
208
73
North Dakota
Mar 4, 2026
#156
  • Mar 4, 2026
  • #156
Break in oil recommendations? BluePrint says in their paperwork that all that's necessary for roller cam engines is a good quality 10W30 conventional oil. Zinc additive can be added, but not required for roller cam. They do require prelubing engine before startup because engine was ran on a dyno and oil drained, so any assembly lube is already gone. So what do you guys suggest? Just follow their instructions and I'm good? Or is their any other first time startup precautions you would take? This is a first for me, so lets hear your opinions.
 

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor
Admin Dude
Jan 4, 1985
43,046
21,213
234
Box behind Walmart
Mar 5, 2026
#157
  • Mar 5, 2026
  • #157
Regular ole' Dino 10w30, an electric drill, and the oil pump shaft tool.
 
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AeroCoupe

lube between the nut and the face. I know my lubes
Founding Member
Oct 28, 2001
5,860
3,992
183
Claremore, OK
Mar 5, 2026
#158
  • Mar 5, 2026
  • #158
If you have converters do not run oil with zinc. I would do as the builder recommends and send it.
 
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Sparky714

5 Year Member
Oct 16, 2015
368
208
73
North Dakota
Mar 20, 2026
#159
  • Mar 20, 2026
  • #159
It's alive!!! Sort of. So the weather has gotten really nice here, so I've been working to get this thing running. Did a bunch of checks, primed the hell out of the oil system(58psi with a 850rpm drill) dumped the tune in it and it fired right up .Set the timing, adjusted fuel pressure with vacuum line off, and it sat and purred like a kitten. Let it run for about 15 minutes and shut it down to check for leaks. So far so good............Then I restarted it to adjust some things in the tune and something wasn't quite right. Noticed it was lean at idle and it had a slight shudder. Shut it down and tried again, kept getting worse. Noticed the gauge on my Aeromotive regulator quickly dropped to almost zero as soon as I shut it down. When I primed the system before I started it, it held pressure for quite a while. Jumped out the fuel pump and let it circulate and tried to set pressure, but it was weird, it wouldn't move, then take big jumps and just acted weird. Now I started looking at the instructions for this regulator, and it is adjustable from 40-75psi. The data on my Ford 80lb injectors give the values at 39psi, so that's what I set it to at the first start(guess I should have read the instructions first). So did I screw up this regulator by backing it out too far to get to 39psi? It adjusted to it while it was running, but it did seem I had to back it out quite a ways to get there.
 

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Sparky714

5 Year Member
Oct 16, 2015
368
208
73
North Dakota
May 7, 2026
#160
  • May 7, 2026
  • #160
Well, after a long winter it's finally done and ready for some summer fun. Just got it back from the tuner. It made 613hp and 573ft/lbs torque on 8lbs of boost. Way more than I thought it would. And it was still making horsepower at 6000rpm. Ignore that dip in the torque curve. That's where the table switching comes on when the water/meth starts spraying. He fixed that with a couple more pulls, this was just max hp. He said I could easily repully it and make a little more boost without any problems. We backed it down to about 560hp so it's fun and reliable on the street. He said I can always put a degree or two of timing back in it at the track if I want to without a problem. I'm stoked!
 

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