GM Engine & Exhaust Performance EFI | GEN I/GEN II/GEN III/GEN IV Engines |Small Block | Big Block |

6.0 to 408

Thread Tools
 
Search this Thread
 
Old 09-11-2007 | 09:25 PM
  #1  
Thread Starter
TECH Regular
 
Joined: Oct 2003
Posts: 407
Likes: 0
From: Albuquerque,NM
Cool 6.0 to 408

i have a 6.0 short bolck tha I want to turn into either a 383 or a 408. which do you guys recommend and how much do i have to bore the 6.0 to work. oh and which kit is the best all around for these strokers. thanks for the info.
Old 09-11-2007 | 09:35 PM
  #2  
nightrunner's Avatar
Mr. Obvious
iTrader: (4)
 
Joined: Jan 2006
Posts: 6,006
Likes: 2
From: Manchester, TN
Default

the 383 is for a overbore LS1, not a 6.0 bore. in other words with a 6.0 block as a starting point, the 383 is a no go. 402 or 408 or bigger is the only options. for a 408, it needs bored .030 over.

on the stroker kits, the price goes up with the quality of it.
Old 09-12-2007 | 01:47 AM
  #3  
mds2004's Avatar
On The Tree
 
Joined: Jul 2006
Posts: 164
Likes: 0
From: Bakersfield, CA
Default

Isnt it a .030 over plus a 4" crank?
Old 09-12-2007 | 12:10 PM
  #4  
Quik's Avatar
5 year bitches!
iTrader: (7)
 
Joined: Oct 2003
Posts: 4,890
Likes: 2
From: Pittsburgh!!!!!!!! Pa
Default

Originally Posted by nightrunner
the 383 is for a overbore LS1, not a 6.0 bore. in other words with a 6.0 block as a starting point, the 383 is a no go. 402 or 408 or bigger is the only options. for a 408, it needs bored .030 over.

on the stroker kits, the price goes up with the quality of it.
speed inc turbo car runs a 383 6.0
Old 09-12-2007 | 03:07 PM
  #5  
jaegmc99's Avatar
TECH Enthusiast
 
Joined: Apr 2006
Posts: 668
Likes: 0
From: Bako,CA
Default

Originally Posted by mds2004
Isnt it a .030 over plus a 4" crank?
Off topic but,

Hell yeah! Bakersfield! ..
...
...


Just do a 402 or 408. Its whats in the market right now and really isn't that expensive for what you get in return
Old 09-12-2007 | 05:54 PM
  #6  
00Silverado's Avatar
TECH Apprentice
 
Joined: Oct 2002
Posts: 306
Likes: 0
From: Los Angeles and Bakersfield, CA
Default

Originally Posted by jaegcm99
Off topic but,

Hell yeah! Bakersfield! ..
Old 09-12-2007 | 07:06 PM
  #7  
nightrunner's Avatar
Mr. Obvious
iTrader: (4)
 
Joined: Jan 2006
Posts: 6,006
Likes: 2
From: Manchester, TN
Default

Originally Posted by Quik
speed inc turbo car runs a 383 6.0
whats the bore and stroke combo for that? never heard of it before


yes a 6.0-based stroker is either a : stock bore+4"stroker crank=402, 0.030 overbore+4"stroker crank=408
Old 09-12-2007 | 08:05 PM
  #8  
TurboBerserker's Avatar
I AM A MOTHERF*CKER
iTrader: (1)
 
Joined: Aug 2004
Posts: 7,132
Likes: 1
Default

4.03 bore, 3.75 stroke = 383

Callies makes a 3.75, not sure about lunati or eagle.
Old 09-12-2007 | 08:15 PM
  #9  
TurboBerserker's Avatar
I AM A MOTHERF*CKER
iTrader: (1)
 
Joined: Aug 2004
Posts: 7,132
Likes: 1
Default

BTW, the reason you see so many 6.0 blocks go to 4.00 stroke is the "square" ideal. 4.0x bore, 4.00 stoke is a torque monster (because of the 4" 'square' according to the theory -- they say 3.75, 3.75 would also be torqueier than a 3.75x3.62 etc.)

It's also the largest "easy" stroke for these blocks and rod combos.
Old 09-12-2007 | 09:36 PM
  #10  
knuckles's Avatar
Launching!
iTrader: (9)
 
Joined: Aug 2007
Posts: 201
Likes: 0
From: richmond va
Default

but scat also has the 4.125 coming and it sould fit with the right rods. i am puting one in my 5.3 when it comes to my door.



All times are GMT -5. The time now is 07:37 AM.