Can U turn your LS3 into an LS9????? - ModernCamaro.com - 5th Generation Camaro Enthusiasts
V8 Engine Discussion 6.2L LS3/L99 V8 | Exhaust | Ignition | Induction | Intakes

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post #1 of 38 Old 10-10-2008, 08:58 PM Thread Starter
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Can U turn your LS3 into an LS9?????

I think u would get a great bang for your buck out of the LS3 engine but is it possible to do the modifications on the LS3 to make it into the LS9.

If not what would u have to do to get simular horsepower and torque from the LS3 to match the LS9.

Also what would be the components u would need and an idea of cost.

As well what would u have to do to the chassis to handle the new power.

Thanks
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post #2 of 38 Old 10-10-2008, 11:48 PM
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dude the ls3 and ls9 have the same block and THATS IT.. the ls9 is a hand built motor and it is EXPENSIVE to make the rest of the questions im too lazy to answer

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post #3 of 38 Old 10-11-2008, 01:25 AM
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They have the same head casting too LS9's are just CNC'd. But other than that you'd need the forged crank titanium rods forged pistons, CNC the heads, camshaft, blower etc etc. You'd be better off and much cheaper adding aftermarket forged pistons and blower and call it a day.

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post #4 of 38 Old 10-11-2008, 03:42 AM
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If your set on a LS9 I think it would be cheapest to get a LS9 crate motor (if, when avaliable) and sell the LS3.

Here you got https://www.crateenginedepot.com/198...9-P2136C0.aspx

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post #5 of 38 Old 10-11-2008, 03:48 AM
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1998 Camaro A4 7.06 @ 96.5 MPH NA 1.47 best 60ft
2010 Camaro Tube Chassis work in progress
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post #6 of 38 Old 10-11-2008, 03:52 AM
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You could sell the LS3.
Parts list:
LS9 top end(supercharger)
Heads $2500
LSX 454c.i. block with forged internals $6000
Cam $200

IMO that should get you 1000+rwhp for $7700 plus the price of the top end from the LS9 and tune.

I would expect the complete LS9 crate engine to be in the $18-20K range.


Found this:
http://blogs.superchevy.com/6229843/...wer/index.html
Our source inside GMPP, says this: "GM Performance Parts is looking into releasing the top half of the LS9 into their GM dealer system so that they could release it as a separate part number in addition to LS9 crate engines. That will allow you to convert an LS3 (with a piston/rod upgrade) to the top end potential of the LS9. Or, just imagine the potential with one of their LSX blocks punched out to 500 cubic inches!" All I can think of is putting this engine into a '67 Camaro, then somehow adding the ZR1's 15.5-inch carbon ceramic front disc brakes for stopping power. Of course, you if these parts get released, you could just add them to your 2010 Camaro. Oh, the possibilities ..

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Originally Posted by tazjetman View Post
dude the ls3 and ls9 have the same block and THATS IT.. the ls9 is a hand built motor and it is EXPENSIVE to make the rest of the questions im too lazy to answer
I don't believe they are hand built. I may be wrong though.

1998 Camaro A4 7.06 @ 96.5 MPH NA 1.47 best 60ft
2010 Camaro Tube Chassis work in progress
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post #7 of 38 Old 10-11-2008, 08:06 AM Thread Starter
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Quote:
Originally Posted by brandonppr View Post
You could sell the LS3.
Parts list:
LS9 top end(supercharger)
Heads $2500
LSX 454c.i. block with forged internals $6000
Cam $200

IMO that should get you 1000+rwhp for $7700 plus the price of the top end from the LS9 and tune.

I would expect the complete LS9 crate engine to be in the $18-20K range.


Found this:
http://blogs.superchevy.com/6229843/...wer/index.html
Our source inside GMPP, says this: "GM Performance Parts is looking into releasing the top half of the LS9 into their GM dealer system so that they could release it as a separate part number in addition to LS9 crate engines. That will allow you to convert an LS3 (with a piston/rod upgrade) to the top end potential of the LS9. Or, just imagine the potential with one of their LSX blocks punched out to 500 cubic inches!" All I can think of is putting this engine into a '67 Camaro, then somehow adding the ZR1's 15.5-inch carbon ceramic front disc brakes for stopping power. Of course, you if these parts get released, you could just add them to your 2010 Camaro. Oh, the possibilities ..



I don't believe they are hand built. I may be wrong though.

I just realized Speed is a way better rush then fighting.
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post #8 of 38 Old 10-11-2008, 08:09 AM Thread Starter
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Is the 454 an easy swap?

Sounds like that is the way to go.How is this engine for reliability?

Also are u saying that I could get all of this done for around $10,000 with installation?

What would I have to do to the chassis and driveshaft for it to take the added power?

Last where is a good place to purchase all of this?


Thanks

I just realized Speed is a way better rush then fighting.
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post #9 of 38 Old 10-11-2008, 10:26 AM
 
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you need to go to ls1tech and do a lot of reading and searching. all the info is there 100X
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post #10 of 38 Old 10-11-2008, 12:31 PM
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LS9 and LS7 are both hand built at the Wixom plant.
That's the biggest reason why those engines are so expensive.

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