PerformanceTrucks.net Forums

INTERNAL ENGINE MODIFICATIONS Valvetrain |Heads | Strokers | Design | Assembly

4.8 flat tops in a 5.3

Thread Tools
 
Search this Thread
 
Old 01-25-2008, 07:37 PM
  #1  
TECH Fanatic
Thread Starter
iTrader: (20)
 
jkwalkercchs's Avatar
 
Join Date: Jan 2008
Location: morristown/newport,tn
Posts: 1,059
Likes: 0
Received 0 Likes on 0 Posts
Default 4.8 flat tops in a 5.3
has anybody done it i have searched and couldnt get a straight answer
jkwalkercchs is offline  
Reply Like
Old 01-25-2008, 08:37 PM
  #2  
TECH Fanatic
iTrader: (38)
 
Join Date: Oct 2005
Location: cedar bluff,alabama
Posts: 1,299
Likes: 0
Received 2 Likes on 2 Posts
Default
Originally Posted by jkwalkercchs
has anybody done it i have searched and couldnt get a straight answer
AHha I thought this is why you wanted the pistons.I'm pretty sure its been discussed on here b4.
1969x11 is offline  
Reply Like
Old 01-25-2008, 08:38 PM
  #3  
TECH Fanatic
iTrader: (12)
 
joshua022's Avatar
 
Join Date: Apr 2007
Location: Douglasville, GA
Posts: 1,278
Likes: 0
Received 0 Likes on 0 Posts
Default
They will work fine and it will up your comp ratio a little bit.
joshua022 is offline  
Reply Like
Old 01-25-2008, 08:44 PM
  #4  
TECH Fanatic
Thread Starter
iTrader: (20)
 
jkwalkercchs's Avatar
 
Join Date: Jan 2008
Location: morristown/newport,tn
Posts: 1,059
Likes: 0
Received 0 Likes on 0 Posts
Default
like how much with stock gasket and those 57cc heads????
jkwalkercchs is offline  
Reply Like
Old 01-25-2008, 09:01 PM
  #5  
TECH Fanatic
iTrader: (12)
 
joshua022's Avatar
 
Join Date: Apr 2007
Location: Douglasville, GA
Posts: 1,278
Likes: 0
Received 0 Likes on 0 Posts
Default
11.18:1 SCR
and around a 8.69:1 DCR (depending on the cam you choose)
joshua022 is offline  
Reply Like
Old 01-25-2008, 09:10 PM
  #6  
TECH Fanatic
Thread Starter
iTrader: (20)
 
jkwalkercchs's Avatar
 
Join Date: Jan 2008
Location: morristown/newport,tn
Posts: 1,059
Likes: 0
Received 0 Likes on 0 Posts
Default
im just puttin a 01zo6 cam with some 1.85 rockers or maybe 1.75s if that guy trades me
jkwalkercchs is offline  
Reply Like
Old 01-25-2008, 09:44 PM
  #7  
IMD
Banned
iTrader: (10)
 
IMD's Avatar
 
Join Date: Sep 2004
Location: Texas
Posts: 567
Likes: 0
Received 0 Likes on 0 Posts
Default
remember though that the 4.8 has a different stroke, and different rod length than the 5.3. that means the pin is in a different location. the flat top isnt the only difference.
IMD is offline  
Reply Like

Trending Topics

Old 01-25-2008, 09:51 PM
  #8  
TECH Senior Member
iTrader: (6)
 
TurboGibbs's Avatar
 
Join Date: Jul 2005
Location: Decatur, AL
Posts: 5,257
Likes: 0
Received 0 Likes on 0 Posts
Default
Originally Posted by IMD
remember though that the 4.8 has a different stroke, and different rod length than the 5.3. that means the pin is in a different location. the flat top isnt the only difference.
pin height is the same, rod length makes up the difference in stroke.
TurboGibbs is offline  
Reply Like
Old 01-25-2008, 09:58 PM
  #9  
IMD
Banned
iTrader: (10)
 
IMD's Avatar
 
Join Date: Sep 2004
Location: Texas
Posts: 567
Likes: 0
Received 0 Likes on 0 Posts
Default
Originally Posted by TurboGibbs
pin height is the same, rod length makes up the difference in stroke.
ah. ok then.
IMD is offline  
Reply Like
Old 01-25-2008, 10:10 PM
  #10  
TECH Senior Member
iTrader: (26)
 
kbracing96's Avatar
 
Join Date: Jul 2004
Location: Oakland, OR
Posts: 9,485
Received 30 Likes on 28 Posts
Default
I wish somebody would try this, it's been talked about a dozen times, but haven't actually seen where someone has done it.
kbracing96 is offline  
Reply Like



Advanced Search
Quick Reply: 4.8 flat tops in a 5.3


Reply Closed Thread Share

All times are GMT -5. The time now is 08:13 AM.