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

347 stroke

  • Thread starter Thread starter lanquid
  • Start date Start date Jul 15, 2004

lanquid

New Member
Jul 15, 2004
18
0
0
UT
Jul 15, 2004
#1
  • Jul 15, 2004
  • #1
My stock 1988 5.0 mustang GT runs the quarter mile in the high 14 second range. Within the next few months I'm going to stroke it up to a 347 and supercharge it. How will this effect my quarter mile time? Do you think I could run in the low 12's?
 

bmo37

Founding Member
Jun 27, 2001
2,368
2
46
New Jersey
Jul 15, 2004
#2
  • Jul 15, 2004
  • #2
lol should be in the 11's
 
B

Britt

Founding Member
May 2, 2002
611
0
0
South Carolina
Jul 15, 2004
#3
  • Jul 15, 2004
  • #3
Yes, But power means nothing if you cant get it to the ground. The tune and the parts you choose will also greatly affect the performance. How are you using the car? The suspention, as well as the entire driveline should be upgraded to take full advantage of your engine. Remember that the engine is only one part of the car and you need all the components working together to maximize performance and your 1/4 mile time.
 

lanquid

New Member
Jul 15, 2004
18
0
0
UT
Jul 15, 2004
#4
  • Jul 15, 2004
  • #4
I am gonna spend the extra money, get new suspension, new radiator and electric fan to cool, new aluminium drive shaft, and lots more just to cope with the stroke up. However a friend suggested I get a twin turbo. Which would be more effective, a supercharger or a twin turbo?
 

monsterstang70

New Member
Jun 24, 2004
145
0
0
Amityville, NY
Jul 15, 2004
#5
  • Jul 15, 2004
  • #5
twin turbo are more effective at making power but they cost more and the install and tuning is a lil bit more involved than wit a supercharger.
 

Grn92LX

Fidanza Man!
Founding Member
Jan 14, 2001
6,819
64
129
New York
Jul 15, 2004
#6
  • Jul 15, 2004
  • #6
Assuming your gonna do aftermarket h/c/i as well, you'll have MORE than enough power to run 10's and MORE than enough power to crack the stock block in half Had a friend with that set up and it went low 10's
 

lanquid

New Member
Jul 15, 2004
18
0
0
UT
Jul 15, 2004
#7
  • Jul 15, 2004
  • #7
aftermarket h/c/i?
 

monsterstang70

New Member
Jun 24, 2004
145
0
0
Amityville, NY
Jul 15, 2004
#8
  • Jul 15, 2004
  • #8
head/cam/intake
 

lanquid

New Member
Jul 15, 2004
18
0
0
UT
Jul 15, 2004
#9
  • Jul 15, 2004
  • #9
Well yes, I am gonna get head cams and intake along with other things. This could crack the block in half eh? Scary, but imagine the power. What do you think I should do to avoid this?
 

MustangMulch

New Member
Mar 27, 2003
303
0
0
Santa Clarita, CA
Jul 15, 2004
#10
  • Jul 15, 2004
  • #10
lanquid said:
Well yes, I am gonna get head cams and intake along with other things. This could crack the block in half eh? Scary, but imagine the power. What do you think I should do to avoid this?
Click to expand...

Two words:

Dart Block
 

lanquid

New Member
Jul 15, 2004
18
0
0
UT
Jul 15, 2004
#11
  • Jul 15, 2004
  • #11
Is there anyway I can keep my stock block, stroke it up, and supercharge it, without the risk of cracking the block?
 

bluevenom867

I will have images of molesting stuffed animals in
Dec 15, 2003
1,704
1
0
St.Petersburg,FL
Jul 15, 2004
#12
  • Jul 15, 2004
  • #12
Nitrous.
Use it only at the track.
Not as hard on the motor cus you only run it when you need it.
 

bluevenom867

I will have images of molesting stuffed animals in
Dec 15, 2003
1,704
1
0
St.Petersburg,FL
Jul 15, 2004
#13
  • Jul 15, 2004
  • #13
If you don't want to do that thank get a 351W out of a truck or something and build that insted.351 will handle more power.It's either that or your buying a FRPP or Dart Block (I didn't sportsman block because your stock block is that strong with some work).
 

bmo37

Founding Member
Jun 27, 2001
2,368
2
46
New Jersey
Jul 16, 2004
#14
  • Jul 16, 2004
  • #14
lanquid said:
Is there anyway I can keep my stock block, stroke it up, and supercharge it, without the risk of cracking the block?
Click to expand...

yes a couple of things can help you. One have the block cleaned, hot tanked and magna fluxed to check for any cracks. The stocker is a a good canidate for an engine rebuild since the metal has been put through its heat cycle therefore the metal has cured so to speak and is stronger than a new block. It is what is known as a seasoned block. Two I'd add a good main support like the one dss sells or other that is just as thick. It will aid in preventing main cap walk which will crack the block. Finally a good tune is what you need if the engine is going to make it at all, any detonation will hurt the engine and end its life early.

Many above have said different blocks which is a great choice if you have the money. The sportsman is still a 2 bolt main but with stroger webbing in the casting, The dart block is a 4 bolt main but open up your check book for that one.
 
You must log in or register to reply here.

Similar threads

S
Fuel ‘88 GT Runs Rich Cold — Fixes Itself When I Unplug Sensors (ECT, MAF, O2, etc.)
  • Sufarry
  • Nov 6, 2025
  • Fox 5.0 Mustang Tech
Replies
12
Views
706
Fox 5.0 Mustang Tech Nov 9, 2025
Mustang5L5
1
Electrical Headlight harness trouble
  • 1985fox
  • Apr 14, 2026
  • Fox 5.0 Mustang Tech
Replies
7
Views
184
Fox 5.0 Mustang Tech Apr 17, 2026
AeroCoupe
Z
Progress Thread zeth194 - New Guy on the Block
  • zeth194
  • Mar 19, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
10
Views
436
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Apr 26, 2026
LILCBRA
D
What's it Worth? 2006 Mustang GT Convertable
  • doc0075579
  • Mar 2, 2026
  • What is it Worth?!?!?
Replies
0
Views
183
What is it Worth?!?!? Mar 2, 2026
doc0075579
D
S
Preparation for Holley Terminator X install – Foxbody 306 (electrical fan, alternator, MSD Ignition, etc)
  • So_Flo
  • Mar 1, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 2
Replies
22
Views
1K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Mar 4, 2026
General karthief
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?