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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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Sparky714

5 Year Member
Oct 16, 2015
368
208
73
North Dakota
Dec 29, 2025
#101
  • Dec 29, 2025
  • #101
Monkeybutt2000 said:
Stock efi covers work great.
Click to expand...
I don't think I'd have enough clearance for stud mount rockers.
 
M

Monkeybutt2000

Mustang Master
Aug 11, 2019
1,387
849
133
Lafayette,IN
Dec 30, 2025
#102
  • Dec 30, 2025
  • #102
Sparky714 said:
I don't think I'd have enough clearance for stud mount rockers.
Click to expand...
I run them with no issues.
 

AeroCoupe

lube between the nut and the face. I know my lubes
Founding Member
Oct 28, 2001
5,867
3,992
183
Claremore, OK
Dec 30, 2025
#103
  • Dec 30, 2025
  • #103
What lift cam?
 

Sparky714

5 Year Member
Oct 16, 2015
368
208
73
North Dakota
Dec 31, 2025
#104
  • Dec 31, 2025
  • #104
I have a few used intakes locally for sale near me. Need opinions on which would be best for my setup. There's a Trickflow R with 90mm opening, a Trickflow Street burner and an older Edelbrock Performer. Car will be mostly street driven with some 1/8th mile track weekends and I plan to keep the boost around 8-10psi. Want to keep good street manners, but have some fun at the track too.
 

Habu135

5 Year Member
Jan 10, 2019
1,223
780
133
California
Dec 31, 2025
#105
  • Dec 31, 2025
  • #105
Sparky714 said:
I have a few used intakes locally for sale near me. Need opinions on which would be best for my setup. There's a Trickflow R with 90mm opening, a Trickflow Street burner and an older Edelbrock Performer. Car will be mostly street driven with some 1/8th mile track weekends and I plan to keep the boost around 8-10psi. Want to keep good street manners, but have some fun at the track too.
Click to expand...
Sparky, I will tell you from experience that I should have listened to the experts here and gone with a Trick Flow Box R Series intake TFS-51511008 (see photo) from the start. I thought it would be too big and instead went with the R Series intake TFS-51511005. I regret that decision and will be upgrading to the Box R Series in the future.

Your combination with the supercharger will flow more air than mine and will work well with the Box R Series with a 90mm TB. Otherwise you'll be leaving A LOT of horsepower on the table.

Take a look at my build list - Progress Thread - 12th Owner: My '93 Notchback Restoration & Performance Build | Page 26 | Mustang Forums at StangNet https://share.google/DrGzeA9IRPc08f8C8

My car made 400 rwhp on the current combination and has good drivability. I suspect I will pick up at least 15 more horsepower after I swap from the R Series w/90mm TB to the Box R Series.
 
Last edited: Dec 31, 2025
Reactions: Sparky714

Sparky714

5 Year Member
Oct 16, 2015
368
208
73
North Dakota
Jan 5, 2026
#106
  • Jan 5, 2026
  • #106
Way more clearance with these valve covers. Even the stock throttle bracket clears (with the 1" spacer). I'll have to figure out what color I want to powder coat them and what to do with the breathers. And if I'm going to run this intake or buy something else. Anybody in the market for a very good condition original Cobra intake?
 

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nickyb

I gotta say i never painted my nuts, Never Ever
15 Year Member
Apr 3, 2009
2,979
1,626
153
nevada
Jan 5, 2026
#107
  • Jan 5, 2026
  • #107
They fit great,I love the slant look.
And no Asian silliness please.
 

Sparky714

5 Year Member
Oct 16, 2015
368
208
73
North Dakota
Jan 5, 2026
#108
  • Jan 5, 2026
  • #108
nickyb said:
They fit great,I love the slant look.
And no Asian silliness please.
Click to expand...
Probably just do black or Ford blue and maybe highlight the lettering somehow. Nothing to crazy.
 

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor
Admin Dude
Jan 4, 1985
43,050
21,219
234
Box behind Walmart
Jan 5, 2026
#109
  • Jan 5, 2026
  • #109
Is the Cobra too small for your setup? Even on the street?
 

Sparky714

5 Year Member
Oct 16, 2015
368
208
73
North Dakota
Jan 6, 2026
#110
  • Jan 6, 2026
  • #110
Noobz347 said:
Is the Cobra too small for your setup? Even on the street?
Click to expand...
Probably not. I have a buddy who's trying to talk me into something that flows better as long as I'm this far into it, so peer pressure has me second guessing myself. I do like the old school look of the Cobra. But if I can find the right deal on something better.....
 

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor
Admin Dude
Jan 4, 1985
43,050
21,219
234
Box behind Walmart
Jan 6, 2026
#111
  • Jan 6, 2026
  • #111
You're supposed to try out and dyno like 12 different ones so that [we] know which one is better.
 
Reactions: General karthief and Sparky714

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor
Admin Dude
Jan 4, 1985
43,050
21,219
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Box behind Walmart
Jan 6, 2026
#112
  • Jan 6, 2026
  • #112
Here... This guy already did some stuff for you:

View: https://www.youtube.com/watch?v=YineYkl8GLg
 

rednotch

I'd like to remain having one chocolate starfish
Founding Member
Aug 14, 2000
1,387
621
143
south jersey
Jan 6, 2026
#113
  • Jan 6, 2026
  • #113
Noobz347 said:
Here... This guy already did some stuff for you:

View: https://www.youtube.com/watch?v=YineYkl8GLg
Click to expand...
Just for info... ThatS an extremely old test, like 3 different retooling of the long r runner intake since...
 

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor
Admin Dude
Jan 4, 1985
43,050
21,219
234
Box behind Walmart
Jan 6, 2026
#114
  • Jan 6, 2026
  • #114
rednotch said:
Just for info... ThatS an extremely old test, like 3 different retooling of the long r runner intake since...
Click to expand...

It's the only one I saw with those two intakes.
 

rednotch

I'd like to remain having one chocolate starfish
Founding Member
Aug 14, 2000
1,387
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south jersey
Jan 7, 2026
#115
  • Jan 7, 2026
  • #115
Noobz347 said:
It's the only one I saw with those two intakes.
Click to expand...


Won't find much on revisions from most companies, there advertising and marketing sucks for stuff like that. but that's an old, really old first gen R egr upper with the 2 bolt bosses running threw the throat, the newer non egr ones are a ton better.
 
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Noobz347

Stangnet Facilities Maint Tech... Er... Janitor
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Jan 4, 1985
43,050
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Box behind Walmart
Jan 7, 2026
#116
  • Jan 7, 2026
  • #116
rednotch said:
Won't find much on revisions from most companies, there advertising and marketing sucks for stuff like that. but that's an old, really old first gen R egr upper with the 2 bolt bosses running threw the throat, the newer non egr ones are a ton better.
Click to expand...

So, larger throttle body and neck?
 

FastDriver

I was uncomfortably high & wearing a helmet
SN Certified Technician
Sep 5, 2001
6,086
2,689
224
Vass, NC
Jan 7, 2026
#117
  • Jan 7, 2026
  • #117
Very happy that I chose the Box-R for my combo. Great street manners. Tough to fit under the Heat Extractor hood. It fit nicely, with solid drop mounts, under the 2.5" Kaenen.
 
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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
Jan 7, 2026
#118
  • Jan 7, 2026
  • #118
Noobz347 said:
So, larger throttle body and neck?
Click to expand...
Completely redesigned the upper, throat, port taper and floor of it vs that old casting. New ones have the bolt on emblem and only 1 bolt running threw the throat area.
 
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Sparky714

5 Year Member
Oct 16, 2015
368
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73
North Dakota
Jan 7, 2026
#119
  • Jan 7, 2026
  • #119
FastDriver said:
Very happy that I chose the Box-R for my combo. Great street manners. Tough to fit under the Heat Extractor hood. It fit nicely, with solid drop mounts, under the 2.5" Kaenen.
Click to expand...
Is that the turbo 363 '93 listed in your profile? What size throttle body?
 

AeroCoupe

lube between the nut and the face. I know my lubes
Founding Member
Oct 28, 2001
5,867
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Jan 7, 2026
#120
  • Jan 7, 2026
  • #120
I am pretty sure the new TFS R-Series uppers have either a 75mm opening (EGR) or a 90mm opening (non-EGR). Just wanted to point this out in case anyone was thinking that if they needed to go to a bigger throttle body on the on with the 75mm opening you have to deal with the EGR port right below the opening. I ended up selling my 75mm upper and bought a 90mm upper so I ended up with the new design.
 
Reactions: General karthief
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