Power mods cutlass (72)350

Old January 13th, 2015, 02:02 PM
  #1  
Registered User
Thread Starter
 
Oldskool84's Avatar
 
Join Date: Feb 2013
Posts: 178
Power mods cutlass (72)350

Hypothetically speaking ,.. What mods would be necessary to make a stock 350 reach 500+ hp/TQ ? I'm tired of looking for the 455 and am considering just keeping what I've got. Rear end & suspension are stock btw.
Oldskool84 is offline  
Old January 13th, 2015, 02:18 PM
  #2  
Registered User
 
cutlassefi's Avatar
 
Join Date: Nov 2008
Location: Central Fl
Posts: 7,820
Can you not find a 455?
In order to get 500 streetable go from a 350 you'll need to either go blower or spend a lot of money, most likely 10k+.
cutlassefi is online now  
Old January 13th, 2015, 02:31 PM
  #3  
Registered User
 
BLUE72RAGTOP's Avatar
 
Join Date: Oct 2008
Location: Raleigh, NC
Posts: 117
that kind of horsepower from a small block requires 6800+ rpm or forced induction, or funny gas. So the best (read most expensive) of everything is required. FWIW, I have almost 5K in my 455 and I'm only making about 480hp.
One key to getting satisfying performance out of a small block is to get it into it's powerband quickly and keep it there. That means transmission and gearing must be selected with this in mind. It might be more realistic to shoot for 425 hp and just make sure all other components are optimized.
BLUE72RAGTOP is offline  
Old January 13th, 2015, 04:29 PM
  #4  
Registered User
Thread Starter
 
Oldskool84's Avatar
 
Join Date: Feb 2013
Posts: 178
Originally Posted by cutlassefi
Can you not find a 455?
In order to get 500 streetable go from a 350 you'll need to either go blower or spend a lot of money, most likely 10k+.
I know the 455 is ideal but have not found any here in HI. I won't go back to FL for some time , so I just wanted to know my options.
Oldskool84 is offline  
Old January 13th, 2015, 09:04 PM
  #5  
Registered User
 
Fun71's Avatar
 
Join Date: Feb 2013
Location: Phoenix, AZ
Posts: 13,721
Originally Posted by Oldskool84
Rear end & suspension are stock btw.
What year vehicle? Stock could mean 2.41, 2.56 or similar rear gears. Just swapping that to mid 3.x ratio will give a huge increase in performance.
Fun71 is offline  
Old January 13th, 2015, 09:57 PM
  #6  
Registered User
 
oldsmobiledave's Avatar
 
Join Date: May 2011
Location: Delta BC Canada
Posts: 3,688
Fyi

Originally Posted by BLUE72RAGTOP
that kind of horsepower from a small block requires 6800+ rpm or forced induction, or funny gas. So the best (read most expensive) of everything is required. FWIW, I have almost 5K in my 455 and I'm only making about 480hp.
One key to getting satisfying performance out of a small block is to get it into it's powerband quickly and keep it there. That means transmission and gearing must be selected with this in mind. It might be more realistic to shoot for 425 hp and just make sure all other components are optimized.


You do not need 6800 rpm or forced induction to make that level of HP from a small block. However you will need to spend way more money than it will cost to build a modestly modified 455.
oldsmobiledave is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
cspataf
Small Blocks
54
July 31st, 2012 10:42 AM
kevin442
Site Help
8
February 22nd, 2009 05:48 PM
m_tanner_75
General Discussion
14
December 28th, 2008 02:06 PM
olds69er
Small Blocks
3
April 14th, 2008 06:45 PM
<George>
Drivetrain/Differentials
1
July 12th, 2004 11:00 AM


Thread Tools
Search this Thread
Quick Reply: Power mods cutlass (72)350



All times are GMT -7. The time now is 05:40 AM.