Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

6.0L H/C or 408 62ChevyII

Thread Tools
 
Search this Thread
 
Old 03-29-2006, 11:45 AM
  #1  
Staging Lane
Thread Starter
iTrader: (13)
 
ufsnola's Avatar
 
Join Date: Jun 2005
Location: New Orleans
Posts: 74
Likes: 0
Received 0 Likes on 0 Posts

Default 6.0L H/C or 408 62ChevyII

Just purchased a 2003 6.0L/4L80e with 25k on it. Motor will be going in a 62 Nova with Heidt's front clip. Car will be a weekend warrior/play toy. Car will see very little track time, mostly a street cruiser.

My question is:

I'm looking for about 400-450rwhp.

Can I get there with a head, cam, intake, bolt-on LQ4 motor and still be streetable? Or should I just go for a mild 408 build.

Car will have 4L80e, probably around a 3000 stall, backhalfed suspension consists of ladder bars and a narrowed Ford 9" with 4.56 gears.

**By mild 408 I mean eagle rotating assembly, forged piston, LS6 intake (no big dollar FAST stuff), some nice LS6 or equivalent ported heads. Some where around 11:1 compression.


Just looking for other opinions and or options.

Thanks...

My new money pit
Old 03-29-2006, 04:48 PM
  #2  
TECH Resident
iTrader: (8)
 
magius231's Avatar
 
Join Date: Aug 2005
Location: Winston Salem, NC
Posts: 751
Received 5 Likes on 2 Posts

Default

depending on your definition of streetable you can get there with bolt-ons and cam only, long as you don't mind spinning almost 7k

Most decent head/cam setups can get you 400rwhp in an auto, for closer to 450 you'll want to go with the bigger cams (230+ duration, of course depending on your cam grinder of choice). You actually can make 500rwhp with stock cubes and heads/cam but it requires a pretty radical cam and expensive heads. Look into Patriot, PRC, or TEA heads and a mild cam (224+ duration) for around 400rwhp, 450rwhp you might want to consider stepping up to AFR or ETP heads with a decent cam (230+ duration), the better heads will make it easier.

for cam only, look into a TRex or similar type cam and all the bolt ons...and new rod bolts
Old 03-29-2006, 04:54 PM
  #3  
TECH Enthusiast
 
69chevy's Avatar
 
Join Date: Jan 2005
Location: In a cave
Posts: 676
Likes: 0
Received 0 Likes on 0 Posts
Default

I'd say a nice 408 would be pretty awesome. Looks like a good starter car but I don't know if i would trust those bolt in roll bars on the front subframe Should be a nice project all in all. The body looks pretty good, not all rusted out or nothing.
Old 03-29-2006, 08:12 PM
  #4  
TECH Fanatic
iTrader: (27)
 
jdoyle's Avatar
 
Join Date: Oct 2004
Location: DFW
Posts: 1,197
Received 3 Likes on 3 Posts

Default

im curious as well, but i am restricted by 2.055 intake valves and heads milled .030, anyone know what my limit is with this setup?

right now, i am DAILY DRIVING

6.0 shortblock
Milled 0.030 853 heads
ls6/ported
tr224

***lemme know if you need more info
Old 03-29-2006, 08:17 PM
  #5  
Staging Lane
Thread Starter
iTrader: (13)
 
ufsnola's Avatar
 
Join Date: Jun 2005
Location: New Orleans
Posts: 74
Likes: 0
Received 0 Likes on 0 Posts

Default

Thanks for the input.
No I don't want to shift at 7k to make my power.
I was hoping for more of a 2500-6000 power band with plenty of low end torque.
So I guess the 408 would be the best option.
What about a cam in this power band for a 408?




All times are GMT -5. The time now is 10:01 AM.