Turn your LS2/LS3 into a Stage 3 LS7-LSX - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Livernois Motorsports · 04-22-2014, 02:49 PM

Here is an example of a recent customer build taking a LS2 block and putting a sleeve in it to push the bore to 4.130. This package allows an LS2 car to be morphed into a pumped up LS7 and still retain the compatibility with the stock LS2 base engine.

This package is based around a custom sleeved LS2 block that Livernois Motorsports machines in house on its own 4-Axis CNC machine. This allows absolute precision and ensures the block is held to within just +/- .0001 to the specification.

Once the block machine work is done we utilize our own custom rotating assembly, complete with forged H-beam connected rods, forged custom pistons, stainless steel top ring and Napier second, upgraded thick wall wrist-pin and forged stroker crankshaft. This takes us to a 429 cubic inch size.

The short-block is then complimented with LSX-LS7 heads utilizing our own custom CNC program and valve-job, along with the FAST composite intake. This package is designed for the ultimate in street-able performance from a large cubic inch LS base. The added cubic inches and breathing from the bigger bore, coupled with the longer stroke and high flowing cylinder head matched with custom camshaft really turn this engine into a beast.

Short-block, Long-block and Complete engine packages just like this are available to retrofit your LS2 and LS3 equipped car into a big-bore stroker LS7 monster with direct bolt-in capability.

woodside783 · 04-22-2014, 02:54 PM

Wow that's bad ass did not know it could be done safely. Great news

04-22-2014, 02:58 PM

What is the cost of something like that? Is there a mod for the v6? How does that compare to the Hennessey. ..or..Calloway upgrades?

Jason@JacFab · 04-22-2014, 04:05 PM

Quote:

Originally Posted by firedruish

What is the cost of something like that? Is there a mod for the v6? How does that compare to the Hennessey. ..or..Calloway upgrades?

Darton makes a sleeve kit for the 3.6 that will allow a max bore of 98mm which would make the v6 engine roughly a 3.9L... I bet Livernois could install the sleeves... The sleeves themselves are $1825 msrp, but then you'd have to get custom pistons made, plus labor... Could be spendy.

That's some nice looking engine porn there Livernois guys!

mikeyg36 · 04-22-2014, 07:21 PM

What's the cost on something like this?

Livernois Motorsports · 04-23-2014, 01:25 PM

Guys,

This is definitely a sweet build and a great option for you LS2/LS3 guys. To get pricing for a build like this shoot us a PM or give us a call at the shop for pricing. 313 561-5500.

Livernois Motorsports · 04-23-2014, 01:31 PM

As for the V-6 option what are you looking to do your car as far as performance goes?

pyroguy · 04-23-2014, 03:21 PM

How about L99 to 427c.i.? Is it possible to do that?

Unreal · 04-23-2014, 04:22 PM

Yes it is. You can go from a 4.8L to 427 or 440 if you wanted with a sleeved block.

62nalide · 04-23-2014, 05:04 PM

Quote:

Originally Posted by Livernois Motorsports

Guys,

This is definitely a sweet build and a great option for you LS2/LS3 guys. To get pricing for a build like this shoot us a PM or give us a call at the shop for pricing. 313 561-5500.

Sounds nice!
I am considering your mini stroker 390 short block next spring!

Irnwkrkev · 04-23-2014, 08:27 PM

Do the LSX-LS7 heads have a better reputation for valve guide wear then the regular production castings? Are the intake valves still titanium?

Would also like some more info on your mini stroker. Is it an offset ground factory crank with honda rods? What kind of compression ratios are available with it? Thanks!

grocerygetter · 04-23-2014, 09:18 PM

So I could do this to a ls6 block?

flashtech · 04-23-2014, 09:56 PM

What is the hp rating at the crank on this setup?

Sapper12b · 04-24-2014, 03:33 AM

Quote:

Originally Posted by flashtech

What is the hp rating at the crank on this setup?

Curious to see the HP and TQ numbers on a build like this ?

04-22-2014, 02:49 PM	#1
Livernois Motorsports Drives: 2010 Camaro 454 LSX (SOLD) Join Date: Jun 2013 Location: Dearborn Heights, MI Posts: 792	Turn your LS2/LS3 into a Stage 3 LS7-LSX Here is an example of a recent customer build taking a LS2 block and putting a sleeve in it to push the bore to 4.130. This package allows an LS2 car to be morphed into a pumped up LS7 and still retain the compatibility with the stock LS2 base engine. This package is based around a custom sleeved LS2 block that Livernois Motorsports machines in house on its own 4-Axis CNC machine. This allows absolute precision and ensures the block is held to within just +/- .0001 to the specification. Once the block machine work is done we utilize our own custom rotating assembly, complete with forged H-beam connected rods, forged custom pistons, stainless steel top ring and Napier second, upgraded thick wall wrist-pin and forged stroker crankshaft. This takes us to a 429 cubic inch size. The short-block is then complimented with LSX-LS7 heads utilizing our own custom CNC program and valve-job, along with the FAST composite intake. This package is designed for the ultimate in street-able performance from a large cubic inch LS base. The added cubic inches and breathing from the bigger bore, coupled with the longer stroke and high flowing cylinder head matched with custom camshaft really turn this engine into a beast. Short-block, Long-block and Complete engine packages just like this are available to retrofit your LS2 and LS3 equipped car into a big-bore stroker LS7 monster with direct bolt-in capability. Attached Images

04-22-2014, 02:54 PM	#2
woodside783 Casey Woodside Drives: a very fun car Join Date: Jun 2010 Location: Tn Posts: 1,906	Wow that's bad ass did not know it could be done safely. Great news __________________ Instagram @caseywoodside http://youtu.be/CSc9aPh_X_w

04-23-2014, 03:21 PM	#8
pyroguy Started#gottalovethatblue Drives: ABM #831 Join Date: Apr 2013 Location: TN Posts: 6,919 View My Garage	How about L99 to 427c.i.? Is it possible to do that? __________________ '10 Camaro 2SS/RS \| Aqua Blue #831 of 3,903 \| Silver Stripes Check out my build thread

04-23-2014, 04:22 PM	#9
Unreal Drives: 2006 Z06 Join Date: Oct 2010 Location: Gilbert, AZ Posts: 5,712	Yes it is. You can go from a 4.8L to 427 or 440 if you wanted with a sleeved block. __________________ Nick Corvette Z06 -1200ish rwhp

04-23-2014, 09:18 PM	#12
grocerygetter instigator Drives: 2020 6.2 Trail Boss, 2022 XC90 Join Date: Jan 2010 Location: 72034 Posts: 3,979 View My Garage	So I could do this to a ls6 block? __________________ -John S.

04-22-2014, 02:58 PM	#3
firedruish Guest Posts: n/a View My Garage	What is the cost of something like that? Is there a mod for the v6? How does that compare to the Hennessey. ..or..Calloway upgrades?

04-22-2014, 07:21 PM	#5
mikeyg36 Drives: 2015 Z/28 #533 Join Date: Jul 2012 Location: NY Posts: 6,731	What's the cost on something like this?

04-23-2014, 01:25 PM	#6
Livernois Motorsports Drives: 2010 Camaro 454 LSX (SOLD) Join Date: Jun 2013 Location: Dearborn Heights, MI Posts: 792	Guys, This is definitely a sweet build and a great option for you LS2/LS3 guys. To get pricing for a build like this shoot us a PM or give us a call at the shop for pricing. 313 561-5500.

04-23-2014, 01:31 PM	#7
Livernois Motorsports Drives: 2010 Camaro 454 LSX (SOLD) Join Date: Jun 2013 Location: Dearborn Heights, MI Posts: 792	As for the V-6 option what are you looking to do your car as far as performance goes?

04-23-2014, 08:27 PM	#11
Irnwkrkev Drives: 2011 SS/RS LS3 Join Date: Oct 2010 Location: Miami Posts: 528	Do the LSX-LS7 heads have a better reputation for valve guide wear then the regular production castings? Are the intake valves still titanium? Would also like some more info on your mini stroker. Is it an offset ground factory crank with honda rods? What kind of compression ratios are available with it? Thanks!

04-23-2014, 09:56 PM	#13
flashtech Drives: '10 2SS/RS '04 NSRT-4 '06 F-150 V8 Join Date: May 2013 Location: Montgomery, TX Posts: 130	What is the hp rating at the crank on this setup?