418 c.i. L92 Short Blocks at Texas Speed and Performance!!
11-11-2006, 06:13 AM
#21
Dear... sweet... lord.
Think about it: you can set up a long block with L92 heads and L76 intake for LESS money than a 402 (given the $$$ you save on heads and intake), and likely outperform it, too.
Where was this a year ago when my motor broke?!?
Anyone want to buy a forged 347? (Just kidding. Maybe.)
Think about it: you can set up a long block with L92 heads and L76 intake for LESS money than a 402 (given the $$$ you save on heads and intake), and likely outperform it, too.
Where was this a year ago when my motor broke?!?
Anyone want to buy a forged 347? (Just kidding. Maybe.)
11-11-2006, 10:05 AM
#22
TECH Enthusiast
iTrader: (22)
Join Date: Nov 2004
Location: 18013
Posts: 713
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by black_knight
Dear... sweet... lord.
Think about it: you can set up a long block with L92 heads and L76 intake for LESS money than a 402 (given the $$$ you save on heads and intake), and likely outperform it, too.
Think about it: you can set up a long block with L92 heads and L76 intake for LESS money than a 402 (given the $$$ you save on heads and intake), and likely outperform it, too.
11-11-2006, 11:21 AM
#23
TECH Apprentice
Join Date: Sep 2005
Location: DFW, TX
Posts: 370
Likes: 0
Received 0 Likes
on
0 Posts
so where does the 800+ price difference come into play vs a LS2 402/408?? I thought this new block was suppose to be super cheap.
any other cubic inch options available?
any other cubic inch options available?
11-11-2006, 01:25 PM
#24
TECH Enthusiast
iTrader: (22)
Join Date: Nov 2004
Location: 18013
Posts: 713
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Blown04Z06
so where does the 800+ price difference come into play vs a LS2 402/408?? I thought this new block was suppose to be super cheap.
any other cubic inch options available?
any other cubic inch options available?
not to mention im sure the custom pistons to work with the L92 head's huge valves cost a little more.
what about a 4.1" stroke crank? that would be 429 cubes!
11-12-2006, 01:16 AM
#27
TECH Enthusiast
iTrader: (22)
Join Date: Nov 2004
Location: 18013
Posts: 713
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by black_knight
They fit?
11-12-2006, 09:07 AM
#28
11 Second Club
iTrader: (1)
Join Date: Oct 2003
Location: Granbury Texas
Posts: 691
Likes: 0
Received 0 Likes
on
0 Posts
So Zach how much for all this if you reuse my 4.125 crank and rods. Also how many cubes would that give me? I would like to know how much power you guys are seeing from any of these builds. PM me a cost please.
11-12-2006, 12:02 PM
#29
You can use this calculator to determine cubic inches. Just simply fill in the blanks.
http://www.bgsoflex.com/displacement.html
With a 4.125" stroke and a 4.065" bore, you're looking at a 428 displacement.
http://www.bgsoflex.com/displacement.html
With a 4.125" stroke and a 4.065" bore, you're looking at a 428 displacement.
11-12-2006, 06:27 PM
#30
TECH Resident
Join Date: Oct 2004
Location: TAMPA by way of MIAMI!!!
Posts: 807
Likes: 0
Received 0 Likes
on
0 Posts
I believe when this block first came out it was established that it could only take a 4" stroke. The liners are too short for more than 4". If I'm wrong correct me please.
11-12-2006, 11:51 PM
#32
TECH Apprentice
Join Date: Sep 2005
Location: DFW, TX
Posts: 370
Likes: 0
Received 0 Likes
on
0 Posts
# Number of Cylinders are = 8 to 1
# Piston Diameter = 4.080 Inches- SDPC specs on bore
# Piston Oversize = 0.000 Inches
# Engine Stroke = 4.125 Inches
# Computed Engine Displacement (CID) is 431
# Computed Engine Displacement (Litres) is 7.1
# Computed Engine Displacement (CC) is 7070.2
431 CUBES! Now thats what im talking about. id rather see something like this instead of a 418 price quote, not that i can do this type of a build right now. I just broke 1800 miles on my LS2 403 and my clutch is spinning. with the L92 heads and L76 intake, a 431 shoudl make high 500's all day and night with a decent cam. anyone else see what i see? a budget 431 that out performs a LS7?
# Piston Diameter = 4.080 Inches- SDPC specs on bore
# Piston Oversize = 0.000 Inches
# Engine Stroke = 4.125 Inches
# Computed Engine Displacement (CID) is 431
# Computed Engine Displacement (Litres) is 7.1
# Computed Engine Displacement (CC) is 7070.2
431 CUBES! Now thats what im talking about. id rather see something like this instead of a 418 price quote, not that i can do this type of a build right now. I just broke 1800 miles on my LS2 403 and my clutch is spinning. with the L92 heads and L76 intake, a 431 shoudl make high 500's all day and night with a decent cam. anyone else see what i see? a budget 431 that out performs a LS7?
Last edited by Blown04Z06; 11-13-2006 at 12:04 AM.
11-12-2006, 11:55 PM
#33
TECH Apprentice
Join Date: Sep 2005
Location: DFW, TX
Posts: 370
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by firefighter
I believe when this block first came out it was established that it could only take a 4" stroke. The liners are too short for more than 4". If I'm wrong correct me please.
but builders are using 6.125 + 4.1" stroke
someone is using 6.20" rods and 4.25" stroke on a LS2 with a 4.030 bore
11-13-2006, 12:54 PM
#34
TECH Enthusiast
iTrader: (22)
Join Date: Nov 2004
Location: 18013
Posts: 713
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by zigroid
there hasn't been anyone who has said they WOULDNT fit on a 4" bore. GM uses L92 heads on the 6.0L L76 so I don't see why it wouldn't work. I have my L92 heads on my stock bore LS2 block. I gotta swap some parts around, get the oil pan off and since I have no rods/pistons in there I'll try and snap a picture of the 4" bore cylinder and L92 combustion chamber.
11-13-2006, 05:39 PM
#36
TECH Enthusiast
iTrader: (8)
Join Date: Dec 2005
Location: dallas tx
Posts: 622
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by zigroid
I got some pictures of the L92 heads bolted on a 4" bore LS2 block without rods/pistons from an oil pan shot. my camera takes the crappiest pictures so dont expect high quality pictures haha. these are the ones that came out the best...
y are there no guids or seats??? how much were those heads??it's going to take a lot of money to get thoses running
11-13-2006, 06:37 PM
#37
TECH Enthusiast
iTrader: (22)
Join Date: Nov 2004
Location: 18013
Posts: 713
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by vanilla89
y are there no guids or seats??? how much were those heads??it's going to take a lot of money to get thoses running
Last edited by zigroid; 11-13-2006 at 06:46 PM.
