• Mustang Forums
  • 1965 - 1973 Classic Mustangs -General/Talk-
  • Classic Mustang Specific Tech

351w questions about power

  • Thread starter Thread starter my67stang
  • Start date Start date Sep 2, 2005
M

my67stang

New Member
Aug 22, 2005
7
0
0
Sep 2, 2005
#1
  • Sep 2, 2005
  • #1
I found a guy who is selling his 351w and asked for some specs about it. They are as follows:

"ALRIGHT, here goes....it is a stock 72 block and a stock 72 crank...but that is the limit of the 'stockness'. The block has been bored .030 over(357ci) and bored with torque plates, line honed, decked and checked for squareness, thermo cleaned and checked for cracks. That crank is 'race prepped', turned .010/.010, cleaned, checked, shot peened the whole works. It has bushed forged DSS I-beam connecting rods, and forged DSS pro-lite pistons. The pistons have a 18cc dish and are flycut for normal heads and the trick flow heads. With my EFI build up, I had a trick flow intake and AFR 185cc heads..and with my track times and NO tune, I figured I had at least 425-450hp...with a carb motor I would expect, with the right combo, about 450-475 at the least! The weakest link of this whole setup is the block itself. The rods and pistons are good till about 7500-8000RPM, and about 800-900HP, the crank is a race prepped crank and I have seen them go in 750-800hp motors, before the BLOCK cracked. So this motor is not for the stock buildup. I built this thing to handle some power and boost. I planned on running it to the block limit of 750-800hp. So with all that...let me know what you think. I have reciepts for everything so you know what you are getting. I have about 1800 bucks in it. I just want it gone...I could use the money for bills. THanks

What do you guys think? For a little under $1000?
Thanks
 
G

gzminiz

New Member
Oct 15, 2004
200
0
0
Phoenix, AZ
Sep 2, 2005
#2
  • Sep 2, 2005
  • #2
I don't think I beams would do so hot with a 750-800 hp motor, maybe i am wrong. Stock crank would be cast and that probably wouldn't hold up at 800hp either, again, i could be wrong.
 
M

my67stang

New Member
Aug 22, 2005
7
0
0
Sep 2, 2005
#3
  • Sep 2, 2005
  • #3
not really planning on pushing more than about 450hp
 
G

gzminiz

New Member
Oct 15, 2004
200
0
0
Phoenix, AZ
Sep 2, 2005
#4
  • Sep 2, 2005
  • #4
i personally am going all forged with h beam connecting rods and I am looking to push around the same, but I want the thing to be bullet proof. Unfortunately I am not an engine guru by any means so I could tell if that would hold up for sure or not. Everything I have read and people I have talked to suggested using a forged crank and H beams. I guess my concern is the guy told you a cast crank would take 850hp no problem.
 

rbohm

Founding Member
Apr 12, 2002
6,698
550
204
tucson,az
Sep 3, 2005
#5
  • Sep 3, 2005
  • #5
what horsepower level, and what rpm range are you going to run in? if you keep below 6500 rpm, and below 500hp, then the stock crank and rods will be just fine.
 
You must log in or register to reply here.

Similar threads

Progress Thread 351w Build, 67 Coupe
  • redstang67
  • Oct 4, 2024
  • Classic Mustang Specific Tech
Replies
3
Views
336
Classic Mustang Specific Tech Oct 5, 2024
89ripper
R
Progress Thread 351w stroker rotating assembly and build
  • Ric4eyedFox
  • Mar 23, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
13
Views
845
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Mar 24, 2025
Noobz347
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
606
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Dec 29, 2025
revhead347
6
Hey all,I’m putting together a 302 for my 1968 Mustang and wanted to post the combo + some questions to make sure I’m not missing crucial
  • 68_Disgustang
  • Feb 22, 2026
  • 1965 - 1973 Classic Mustangs -General/Talk-
Replies
4
Views
759
1965 - 1973 Classic Mustangs -General/Talk- Jun 20, 2026
gray owl
G
Help with Engine Build
  • 93gtmustang
  • Nov 13, 2024
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
12
Views
706
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Nov 17, 2024
AeroCoupe
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1965 - 1973 Classic Mustangs -General/Talk-
  • Classic Mustang Specific 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?