LS2 402 short block at SDPC!
#43
11 Second Club
iTrader: (22)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Originally Posted by waterbug1999
Would there be any advantages/disadvantages for and LS2 block versus and LS1 block.. Given all other parts the same?
Retail on the Lunati 395 stroker kit for the LS1 is $3899.99
or...
Retail on a wet sleeved LS1 block bored to 4.110 is $2499.99
plus the $2000 rotating assembly.
or...
This kit is setup. Aluminum block weight, iron block price.
Money talks.
![The Judge](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_judge.gif)
#44
10 Second Club
iTrader: (3)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Originally Posted by V-10 Killer
I can think of one advantage.
Retail on the Lunati 395 stroker kit for the LS1 is $3899.99
or...
Retail on a wet sleeved LS1 block bored to 4.110 is $2499.99
plus the $2000 rotating assembly.
or...
This kit is setup. Aluminum block weight, iron block price.
Money talks.![The Judge](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_judge.gif)
Retail on the Lunati 395 stroker kit for the LS1 is $3899.99
or...
Retail on a wet sleeved LS1 block bored to 4.110 is $2499.99
plus the $2000 rotating assembly.
or...
This kit is setup. Aluminum block weight, iron block price.
Money talks.
![The Judge](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_judge.gif)
#45
10 Second Club
iTrader: (15)
Join Date: Nov 2001
Location: St. Michael, MN.
Posts: 4,519
Likes: 0
Received 0 Likes
on
0 Posts
![](https://ls1tech.com/forums/images/ranks/ls1tech20year.png)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Also take in consideration the lighter weight LS2 block, no sleeving problems if a 402, reliability and excellent HP numbers. The LS2 stroker should be a no brainer especially when the knock sensor issue is figured out.
#46
TECH Veteran
iTrader: (21)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Originally Posted by ramairstyle00
how much spray can i hit it with till i blow a hole in the pistons or lift the heads?
wanting to know the limits of the shortblock.....
(direct port)
wanting to know the limits of the shortblock.....
(direct port)
#48
TECH Veteran
iTrader: (21)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Originally Posted by 383LQ4SS
Why do the knock sensors have to be turned off. Cant they just be mounted somewhere else on the block externally?
![Happy](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_stretch.gif)
#49
TECH Addict
iTrader: (70)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Originally Posted by Beast96Z
These motors aren't going to be any diffrent, reliability wise, from the LS-1. A LS-2 block isn't going to handle any more or any less power than the other aluminum blocks. If you blew a hole in the LS2/402 piston or lifted the head, you would have done the same with your 427 wet sleeve block. It's the same internal parts. If your worried about burning pistons, get specific nitrous pistons. If your worried about lifting the heads, get ARP head studs and a set of o-ringed AFR's. The bottom line is, do you want to save $3000 bucks for 25 cubic inches. A properly built 402 will lay down killer numbers. Similar to what most 408 iron blocks put out. I've seen anywhere from 490-618 rwhp come out of 408's. It just depends on who does the heads and cam. The only thing you should worry about is getting the knock sensor thing figured out. If your going to be running that much spray, you'll want those sensors working.
#50
TECH Veteran
iTrader: (21)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Originally Posted by ramairstyle00
my buddy is looking at building a QUICK (9 second N/A car ready for a 300+ shot) and wanted to see if this would be a MUCH cheaper alternitave (spelling?) than the C5R block
#52
TECH Veteran
iTrader: (53)
Join Date: Feb 2004
Location: Monticello, Kentucky
Posts: 4,433
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Originally Posted by Beast96Z
In earlier discussions it was said that the knock sensors look for a certain frequency in their tucked away location in the valley cover. Moving them to an external location seems to interfer with the frquency range causing them to pick up excessive knock or in this case noise. I'm sure you could change the frequency range in the computer to the LS-2 frequency and use those sensors, but as of now, no one has done it. ![Happy](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_stretch.gif)
![Happy](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_stretch.gif)
#53
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Originally Posted by dhdenney
I see no reason why you just can't forget the KS all together. The SBC ran without one for 40 something years. With a good tune, it shouldn't knock anyway.
#55
8 Second Club
Join Date: May 2002
Location: Toronto
Posts: 1,043
Likes: 0
Received 0 Likes
on
0 Posts
![](https://ls1tech.com/forums/images/ranks/ls1tech10year.png)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
The 6.0L LS2 is identical to the 6.0 Iron Block LQ4/9 from a performance perspective... here are the crank HP numbers from SLP's 402 and APE's 408... both are budget build. 402 is based on a stock bore... I am in the process of building up a 4XX LS2 stroker to go into my 2002 Z28... I have not yet ironed out the final details but it should be pretty interesting... There are quite a few LS2 articles on my webpage @ www.avigdor.net .
SLP's 402
![](http://s97997631.onlinehome.us/Mags/carcraft%20dec2004/p32.jpg)
APE's 408
SLP's 402
![](http://s97997631.onlinehome.us/Mags/carcraft%20dec2004/p32.jpg)
APE's 408
![](http://s97997631.onlinehome.us/Mags/CHP%20Sep04/p127.jpg)
#56
TECH Enthusiast
Thread Starter
iTrader: (1)
Join Date: Dec 2003
Location: Dallas, TX
Posts: 644
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Originally Posted by DrkPhx
Kris - How about flat top pistons with valve reliefs? I would like 10.9 to 1 compression.
#57
TECH Enthusiast
Thread Starter
iTrader: (1)
Join Date: Dec 2003
Location: Dallas, TX
Posts: 644
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Originally Posted by Billiumss
Great price!!! Those will sell like hotcakes... Any warranty on it?
I might have to sell my 6.0L Iron block and jump to the LS2 down the road.
Why can't you just reuse your stock knock sensors and extend the wires? Did I miss something here, please explain...
Bill
I might have to sell my 6.0L Iron block and jump to the LS2 down the road.
Why can't you just reuse your stock knock sensors and extend the wires? Did I miss something here, please explain...
Bill
The only warranty these will have is a 90 day craftsmanship parts only warranty. Please keep in mind we will leave no one in the dark! If there is a problem with the short block and it is for sure our fault, we will do everything we can to make sure you are taken care of. Worst case, we will ask that you ship the short block back to us for inspection, but I realy doubt we will EVER see any kind of problem. Our shop works very hard to turn out quality work, and inspects everything before assembly. Let me know if you have any questions!!
#59
TECH Enthusiast
Thread Starter
iTrader: (1)
Join Date: Dec 2003
Location: Dallas, TX
Posts: 644
Likes: 0
Received 0 Likes
on
0 Posts
![Lightbulb](https://ls1tech.com/forums/images/icons/icon3.gif)
Everyone please keep in mind that I focused on price when puting this short block together. This is a VERY nice short block for the money and will handle alot of hp & will work well with most NOS aptications. It has very nice parts in it, but would not sugjest over a 150 shot (depending on your compression & tune), we are not limited to what I listed for the internals. If anyone wants to build a custom short or long block we can do it. I have Lunati, Callies, JE, just about anything you want I can get. Something else I just thought of, we have one or two 4.125 stroke Callies cranks on the shelf! 415ci with a 4.000 bore. This can be done but will cost a few more dollars. I just want everyone to know we have options.
#60
TECH Resident
iTrader: (23)
Join Date: Jun 2002
Location: Tri-Cities, WA
Posts: 913
Likes: 0
Received 0 Likes
on
0 Posts
![](https://ls1tech.com/forums/images/ranks/ls1tech10year.png)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Kris,
What are we looking at for turn around time from ordering to delivery, and how is payment going? Is it all up front or 50/50? Emission problems for CA guys with the 402? After discussing this type of build with you a few months back before the 402 option I couldn't wait, now I'm beside myself! I would like to have a little more time with Q & A when you get the chance. Please PM me for a good time to call or my email address. Thanks, and great job!
What are we looking at for turn around time from ordering to delivery, and how is payment going? Is it all up front or 50/50? Emission problems for CA guys with the 402? After discussing this type of build with you a few months back before the 402 option I couldn't wait, now I'm beside myself! I would like to have a little more time with Q & A when you get the chance. Please PM me for a good time to call or my email address. Thanks, and great job!
![Cheers!!](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_cheers.gif)