• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

NITROUS GT-40 QUESTION............

  • Thread starter Thread starter somis89gt
  • Start date Start date Jun 9, 2006
S

somis89gt

New Member
May 26, 2006
5
0
0
Jun 9, 2006
#1
  • Jun 9, 2006
  • #1
I have a 89 gt and i want to keep it looking relatively stock looking.So my idea was to port and polish a set of cast gt-40 heads build a bulletproof rotating and then like a 300 shot do you guys think this will work good???
 

Tonys96Cobra

professional deer "mounter"
Oct 28, 2005
19
9
29
Syracuse
Jun 9, 2006
#2
  • Jun 9, 2006
  • #2
Yes
 

Modular2v

Founding Member
Jun 30, 2002
3,222
23
99
oklahoma
Jun 9, 2006
#3
  • Jun 9, 2006
  • #3
somis89gt said:
I have a 89 gt and i want to keep it looking relatively stock looking.So my idea was to port and polish a set of cast gt-40 heads build a bulletproof rotating and then like a 300 shot do you guys think this will work good???
Click to expand...
dont know how much those heads would like that much nitrous......and lets say you did do a 300shot? you better have a nice block in there
 

donsbad68

Immensely Educated
Jan 4, 2003
838
0
0
Oklahoma
Jun 9, 2006
#4
  • Jun 9, 2006
  • #4
Good block, or loud boom your choice.
 

352Ford2

New Member
Oct 12, 2005
393
0
0
Seattle,WA
Jun 9, 2006
#5
  • Jun 9, 2006
  • #5
Think about good valves too, other wise they start to cup under the heat.
 

Swarzkopf

Member
Sep 23, 2004
973
0
16
Pittsburgh
Jun 9, 2006
#6
  • Jun 9, 2006
  • #6
300 shot?

Good god man!

A 225 shot is a VERY big hit of nitrous that guys with aftermarket blocks/forged rotating assemblies are known to run...and I wouldn't try this for long on a stock 5.0 block regardless of what's inside it.

Let alone as 300 shot!
 

352Ford2

New Member
Oct 12, 2005
393
0
0
Seattle,WA
Jun 9, 2006
#7
  • Jun 9, 2006
  • #7
there are plently of guys that run 300-600 shots on aftermarket blocks, it just takes a little more work (muliple stages, progressive controles, dedicated fuel sytems, a lot of money, etc)
 
S

somis89gt

New Member
May 26, 2006
5
0
0
Jun 9, 2006
#8
  • Jun 9, 2006
  • #8
see i'm new to the whole ford small block thing i'm used to running big block chevy's were it takes a lot to hurt a block.....this car is strickley a weekend car i'm only going to run it on the street so maybe a two stage 175 first and second and then move up to 300 half way down???????????? and should i fill the block with something???
 

QUIKSVT

New Member
May 19, 2006
93
0
0
Jun 9, 2006
#9
  • Jun 9, 2006
  • #9
Haha. Factory 302 blocks aren't exactly a BBC..
 

Tonys96Cobra

professional deer "mounter"
Oct 28, 2005
19
9
29
Syracuse
Jun 9, 2006
#10
  • Jun 9, 2006
  • #10
somis89gt said:
and should i fill the block with something???
Click to expand...
Quikrete should make that thing damn near unbreakable!
 

Swarzkopf

Member
Sep 23, 2004
973
0
16
Pittsburgh
Jun 9, 2006
#11
  • Jun 9, 2006
  • #11
there are plently of guys that run 300-600 shots on aftermarket blocks, it just takes a little more work (muliple stages, progressive controles, dedicated fuel sytems, a lot of money, etc)
Click to expand...

Right, but he never said anything about an aftermarket block.
 
8

86bluecobra

Advanced Member
Dec 20, 2004
4,265
12
69
B.C. Canada
Jun 9, 2006
#12
  • Jun 9, 2006
  • #12
Think about putting nitrous valves in the exhaust side of those heads. To take the added heat. Intake valve are constantley being cooled. For your information it is not recommended to exceede the 500 hp point with a stock block. That being said i have seen stock blocks take more hp then that its just a question of when will they crack not will they. i thought that you only want to run a nitrous hit around half as much hp as the engine makes alone. So on juice you are talking about close to 900 hp. and i do not think that a set of cast gt-40 heads would support that kinda power. i know the block won't for long.
 
You must log in or register to reply here.

Similar threads

Engine Suggestions on an engine rebuild. Stock cam/GT40Ps or aftermarket on both for a fun weekend driver?
  • MadSquirrelTech
  • Apr 28, 2026
  • Fox 5.0 Mustang Tech
  • 2
Replies
23
Views
606
Fox 5.0 Mustang Tech May 7, 2026
MadSquirrelTech
Need some camshaft guru advice on power loss from supercharger to nitrous
  • TTSaleen
  • Dec 1, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
18
Views
587
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Dec 29, 2025
revhead347
Engine Forged flat top pistons from 5.0 fit a 351 build?
  • PonyGTrider
  • May 22, 2025
  • Fox 5.0 Mustang Tech
Replies
17
Views
1K
Fox 5.0 Mustang Tech Feb 1, 2026
PonyGTrider
H
Forced Induction On3 Turbo Kit- Parts list NEEDED - 302 Stock Motor
  • Hirothecool1
  • Feb 27, 2026
  • Fox 5.0 Mustang Tech
  • 2
Replies
21
Views
869
Fox 5.0 Mustang Tech Mar 7, 2026
slow84lx
S
P
Electrical 1988 GT Wrong Cluster- causing electrical issues?
  • pindude80
  • May 6, 2025
  • Fox 5.0 Mustang Tech
Replies
3
Views
285
Fox 5.0 Mustang Tech May 6, 2025
pindude80
P
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?