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

331

  • Thread starter Thread starter MotorMike92
  • Start date Start date Feb 11, 2015

MotorMike92

New Member
Feb 11, 2015
2
0
1
Feb 11, 2015
#1
  • Feb 11, 2015
  • #1
Hey I'm new to the site, so sorry if I don't do this right. I have a fee questions . I got a 331 built on a chp block . I has a scat forged rotating assembly . Girdled and a all arp bolts. Probe forged pistons dished for low compression 8 to 1 . The guy I bought it off was running a supercharger 8 psi with a b451 cam and victor jr heads. . I wanted to get the heads and blower as well but he won't sell. Anyways I'm thinking of running the 205 afr heads with 64cc chambers. And a 200 shot of nitrous with a solid roller cam from comp cams I think from the magnum series. Will I get good power out of it or should I stick to the idea of a blower. And a bigger head?
 

7991LXnSHO

wanna catch the space herp
10 Year Member
Sep 1, 2010
7,387
2,745
194
Kearney, NE
Feb 20, 2015
#2
  • Feb 20, 2015
  • #2
Welcome to the site.
I know if you get that combo running that you will need to have it lined up straight before you hit it, supercharger or NO2!
You may need to ask this under 5.0 tech to get the answers you need. A stroker is not so much of a swap as a major bolt on upgrade.
 

A5literMan

At least it is lumpy...
5 Year Member
Jul 30, 2011
4,674
2,343
194
Illinois
Mar 4, 2015
#3
  • Mar 4, 2015
  • #3
You need to post more specific details on your proposed build to get better answers. if it's a stock production block(not a dart,FMS a4,boss,etc) the max recommended hp is around 500. After that they will start cracking. Doesn't matter if you have a good rotating assembly and/or arp studs etc. If those are severely dished Pistons and creating a compression ratio below 9:1 your best avenue to pursue is forced induction. Don't run a solid roller/nitrous combo. Find out what Pistons they are. You could run a 56cc head and even have them milled slightly to raise the compression. 8:1 is to low and not even the best idea for a blower. Low cr makes for a lazy motor. Still can make power but not advisable for a street/strip-street set up.
 

MotorMike92

New Member
Feb 11, 2015
2
0
1
Mar 4, 2015
#4
  • Mar 4, 2015
  • #4
So far I looked up the piston reference chart and with 58 chamber it'll be at 9-3-1 I think thats good enough for nitrous right?. I'm opting for the 205 afr and I'm undecided for the cam. I'll be placing a holley systemax intake manifold.
 

A5literMan

At least it is lumpy...
5 Year Member
Jul 30, 2011
4,674
2,343
194
Illinois
Mar 6, 2015
#5
  • Mar 6, 2015
  • #5
Yes you can run nitrous with that. A stock 302 has 9:1 for comparison. I've ran as much as a 175 shot on a stock motor. Presently I'm going with the TFS 11r head,a custom hyd roller cam,ported systemax and eventually plan on a NX plate system with 150-175 jets. You might want to look at the 205 11r TFS comp ported heads with a 56cc chamber. They provide extra ptv clearance so you can run a more aggressive cam profile. Like these
 
Reactions: 85rkyboby

FoxMustangLvr

I love my Pimp
SN Certified Technician
Oct 14, 2012
4,968
3,514
204
Spokane, Wa
Nov 18, 2015
#6
  • Nov 18, 2015
  • #6
@A5literMan

Stop using those heads to set your beer on while watching the game and get those on your engine pronto!!!
 

A5literMan

At least it is lumpy...
5 Year Member
Jul 30, 2011
4,674
2,343
194
Illinois
Nov 18, 2015
#7
  • Nov 18, 2015
  • #7
FoxMustangLvr said:
@A5literMan

Stop using those heads to set your beer on while watching the game and get those on your engine pronto!!!
Click to expand...
They are on. Cam is installed and degreed with chain. And...that's all the farther I've gotten. It's only taken a year. What's your hurry...
I'm just waiting for some funds. I need a better trans lol.
 
Reactions: FoxMustangLvr
You must log in or register to reply here.

Similar threads

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
572
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Dec 29, 2025
revhead347
Might have to get a Dart block but don't want to and if I do, then 363 instead of 331. Thoughts on what I've already bought so far.......
  • from6to8
  • Jul 8, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 2 3
Replies
52
Views
2K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jul 9, 2025
from6to8
Progress Thread Progress Thread- From6to8's 95 GT/Saleen Supercharged 331 install
  • from6to8
  • Mar 22, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 2
Replies
24
Views
710
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- May 6, 2026
from6to8
351w turbo build.... Turbo guys teach me things...
  • Kid wita 5oh
  • Oct 22, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
13
Views
1K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Oct 23, 2025
General karthief
  • Locked
Engine Might have to get a Dart block but don't want to and if I do, then 363 instead of 331. Thoughts on what I've already bought so far.......
  • from6to8
  • Jul 8, 2025
  • Fox 5.0 Mustang Tech
Replies
2
Views
406
Fox 5.0 Mustang Tech Jul 8, 2025
Noobz347
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
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?