LSX Crate Engine
Thread Starter
Pro
Joined: Jan 2010
Posts: 661
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From: Ca.
LSX Crate Engine
Anyone thought about using one of these to make 1000 reliable horsepower? I know it is a heavier block, "cast" not aluminum, but it sounds good to have the extra reliability at 1000 plus horsepower.
Team Owner
Joined: Nov 2007
Posts: 24,035
Likes: 2,341
From: Gilbert AZ
The block or a built LSX gm engine? The problem with the GM built ones is they use cheap non forged rods, and cheap alloy pistons. Now if you build up using a LSX block then 1000+ is easy, but use a high quality forged piston/rod.
Drifting
Joined: May 2007
Posts: 1,841
Likes: 1
From: Ride the Lightning NJ
I purchased the block alone and had Charlie Weston work the initial magic on it. All other parts were ordered or fabricated through specific shops based on a few goals I set before starting the project. It will be in the hands of JBRE next to complete the short & longblock.
EDIT: I assume when you mentioned an LSx crate, you meant something like this: https://sdparts.com/details/gm-perfo...parts/19213964 and not a generic "seasoned" iron block?
I'm waiting to see how my baller friends will do with their Dart LS Next Block: http://www.dartheads.com/products/en...ext-block.html -- Anyone using one now or thinking about it?
Last edited by digivex; Mar 12, 2014 at 02:22 PM.
Drifting
Joined: May 2007
Posts: 1,841
Likes: 1
From: Ride the Lightning NJ
Thread Starter
Pro
Joined: Jan 2010
Posts: 661
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From: Ca.
This is what I was talking about. One article "Car Craft" said that this engine could handle up to 2000 hp. 15 lbs. of boost is no where near it's ultimate potential.
http://www.chevrolet.com/performance...x-376-b15.html
http://www.chevrolet.com/performance...x-376-b15.html
Last edited by mooney201; Mar 13, 2014 at 12:32 AM.
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Supporting Vendor
Joined: Apr 2012
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From: Forney TX
Would rather spend a little more money and get a lot more motor. Their new blocks are way better than the old ones. With the reinforced water jackets, the common old failures should be a thing of the past. They also threw a lot more nickel in the mix.
With their horrible QC on their blocks, I can't help but worry about how many slip through into a completed assembly. GM claims a high power handling number, but won't warranty it beyond 15psi, so it negates their power handling claims if your purpose it to hit it with more.
For the record, I've got a local friend with a completed LSX shortblock, done by LME with Callies Ultra Billet H-beam, Dragonslayer crank Wiseco 9.5:1 dished pistons, custom Cam Motion cam, timing set, Melling Oil Pump, front and top covers, 24x reluctor. He paid 9300.00 for it. Still on the stand, never turned over. Needs to sell it and asking 7800.00
With cash in-hand out of the gate, it took me 8 months to get my motor together due to waiting on vendors
.
With their horrible QC on their blocks, I can't help but worry about how many slip through into a completed assembly. GM claims a high power handling number, but won't warranty it beyond 15psi, so it negates their power handling claims if your purpose it to hit it with more.
For the record, I've got a local friend with a completed LSX shortblock, done by LME with Callies Ultra Billet H-beam, Dragonslayer crank Wiseco 9.5:1 dished pistons, custom Cam Motion cam, timing set, Melling Oil Pump, front and top covers, 24x reluctor. He paid 9300.00 for it. Still on the stand, never turned over. Needs to sell it and asking 7800.00
With cash in-hand out of the gate, it took me 8 months to get my motor together due to waiting on vendors
.
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Offering products from A&A Superchargers, East Coast Superchargers, Mechman Alternators, Mantic clutches, RPS clutches, Kooks Headers, Lakewood, LG, Brian Tooley Racing, Comp Cams, FAST, ARP, UPP Turbo systems, Wiseco, Callies, K1, MAST Motorsports, Haltech and many more. PM me for details.
Offering products from A&A Superchargers, East Coast Superchargers, Mechman Alternators, Mantic clutches, RPS clutches, Kooks Headers, Lakewood, LG, Brian Tooley Racing, Comp Cams, FAST, ARP, UPP Turbo systems, Wiseco, Callies, K1, MAST Motorsports, Haltech and many more. PM me for details.
Race Director
Joined: Dec 1999
Posts: 10,230
Likes: 885
From: Alexandria, Virginia, USA VA
the 376 B15 is rated for around 1k hp, and with the 6 bolt ls3 style heads I've seen long blocks for just over 7k which isn't bad.
I'm not at all confident in the powdered metal rods, but "stcok blockers" have been pushing them this hard and with the right tune they hold together.
I seriously considered swapping one in on my TTiX car, but I believe I'm going to rebuild my LS6 instead. shouldn't cost anywhere near 7k (I hope!!)
why do you all think the pistons are weak?? I hadn't heard that complaint before.
I also don't trust the "early" LSX blocks as folks seems to have some problems with them, but I believe the 2nd gen castings might be better and the QA issues works out
good question!!!
I'm not at all confident in the powdered metal rods, but "stcok blockers" have been pushing them this hard and with the right tune they hold together.
I seriously considered swapping one in on my TTiX car, but I believe I'm going to rebuild my LS6 instead. shouldn't cost anywhere near 7k (I hope!!)
why do you all think the pistons are weak?? I hadn't heard that complaint before.
I also don't trust the "early" LSX blocks as folks seems to have some problems with them, but I believe the 2nd gen castings might be better and the QA issues works out
good question!!!
Thread Starter
Pro
Joined: Jan 2010
Posts: 661
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From: Ca.
$7,000 is not that bad for a engine. We paid 10k for the s/c, clutch, and installation.
I have been looking at the below for our drag car. This engine would be less money than a turbo engine, and being normally aspirated, should be less maintenance.
http://www.shafiroff.com/pro/582_1045.php
I have been looking at the below for our drag car. This engine would be less money than a turbo engine, and being normally aspirated, should be less maintenance.
http://www.shafiroff.com/pro/582_1045.php
Team Owner
Joined: Nov 2007
Posts: 24,035
Likes: 2,341
From: Gilbert AZ
The block may handle 2khp but that b15 motor will not. The pistons/rods/crank used are all sub standard compared to what you get with just about any aftermarket build. If you want to make 800rwhp then it maybe an option but at that point I would just do a forged ls2/3 and save the weight.
That motor Brent posted is a killer deal. My short block alone was $8500 with no cam/pump/timingset/anything. Just block/pistons/rods assembled.
That motor Brent posted is a killer deal. My short block alone was $8500 with no cam/pump/timingset/anything. Just block/pistons/rods assembled.
