Looking for Forged Rods and Pistons for L99 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

ToddSS · 07-27-2009, 09:54 PM

Just as the title says. Anybody come across a maker yet? I've done a few searches and come up with nill.

Kilo-9 · 07-27-2009, 10:07 PM

Are the pistons and rods any different on the L99 than the LS3? If not, then all the major players have them...JE, Diamond, Wiseco, SRP, Lunati, Oliver, etc...

*GTAHVIT* · 07-27-2009, 10:08 PM

Also, you may look at forged LSX internals from GMPP.

camaro1 · 07-27-2009, 10:17 PM

if your going to change the rods and pistons, you might as well get a whole kit, crank rods, pistons and make it a stroker and add some displacement ,, you would have to have the new rods/pistons balanced to your stock crank anyways

2SSRS@Gen5diy · 07-27-2009, 10:20 PM

How about a gm part #19170988 for the crank and and part #12603616 for a crank
And for the connecting rods we have from 6.0" to 6.2 " hear you go
6.000" # 19166964
6.100" # 19166965
6.125" # 19166966
6.150" # 19166967
6.200" # 19166968

rodimus prime · 07-27-2009, 10:39 PM

The pistons are different. Or at least they have exhaust valve relief cuts in them. But the crank and rods out of the ls9 would work. Infact a ls9 is an ls3 with different crank rods and pistons....plus a supercharger.

camaro1 · 07-27-2009, 10:42 PM

Quote:

Originally Posted by rodimus prime

The pistons are different. Or at least they have exhaust valve relief cuts in them. But the crank and rods out of the ls9 would work. Infact a ls9 is an ls3 with different crank rods and pistons....plus a supercharger.

if you went with aftermarket pistons they valve relief's wouldnt matter, the heads on the l99 and ls3 are the same, and the pistons would have the LS3 / l99 valve reliefs in them

really i just dont think the work needed to change just the rods and pistons and have the whole rotating assy re-balanced would be worth the labor, unless you gained some ci in the process

2SSRS@Gen5diy · 07-27-2009, 10:50 PM

Quote:

Originally Posted by rodimus prime

The pistons are different. Or at least they have exhaust valve relief cuts in them. But the crank and rods out of the ls9 would work. Infact a ls9 is an ls3 with different crank rods and pistons....plus a supercharger.

The rods on the ls9 are forged titanium Part #12624231

rodimus prime · 07-27-2009, 10:53 PM

The l99 has valve reliefs due to VVT. The ls3 doesnt have relief, thus the higher compression ratio.

hot ss · 07-27-2009, 11:05 PM

0.3 cr. woohoo the L99 is a natural born KR killer.

rodimus prime · 07-27-2009, 11:07 PM

Quote:

Originally Posted by hot ss

0.3 cr. woohoo the L99 is a natural born KR killer.

Better for boost

hot ss · 07-27-2009, 11:17 PM

yarrrr.

Kilo-9 · 07-27-2009, 11:24 PM

Quote:

Originally Posted by rodimus prime

The l99 has valve reliefs due to VVT. The ls3 doesnt have relief, thus the higher compression ratio.

Any aftermarket piston should be available with valve reliefs...

PatrickfromMD · 07-27-2009, 11:56 PM

Personally, I would look for pistons with larger reliefs, so I could run a cam with more lift, more duration, or with less phase limiting.
The VVT is a technology that has yet to be fully tapped
I’d probably look to supercharge as well, so the lower compression due to deeper reliefs would be ideal for me.
(i.e. forged with deap reliefs or dish for about 9/1 compression and more clearance for a better cam…30 degrees phase limiting perhaps?)

07-27-2009, 10:07 PM	#2
Kilo-9 Dog Is My Copilot Drives: 2011 2SS/RS LS3 Join Date: Jun 2009 Location: Pittsburgh, PA Posts: 1,394	Are the pistons and rods any different on the L99 than the LS3? If not, then all the major players have them...JE, Diamond, Wiseco, SRP, Lunati, Oliver, etc... __________________

07-27-2009, 10:08 PM	#3
GTAHVIT Blessed Drives: 2013 Sonic RS MT Join Date: Dec 2007 Location: Saint Augustine FL Posts: 28,441 View My Garage	Also, you may look at forged LSX internals from GMPP. __________________ Click image to see build thread. PQ - "the love of cars. It's a boys first step toward manhood and a mans last hold on boyhood." Fbodfather - "We do not want to use the Z28 moniker on a car that does not deserve this hallowed name." The_Blur - "Let's not confuse competitors with equals."

07-27-2009, 10:17 PM	#4
camaro1 Drives: 550+RWHP 2010 camaro Join Date: Sep 2007 Location: wisconsin Posts: 1,588	if your going to change the rods and pistons, you might as well get a whole kit, crank rods, pistons and make it a stroker and add some displacement ,, you would have to have the new rods/pistons balanced to your stock crank anyways __________________ 415ci stroker, TVS 2300 Magnacharger, cnc heads, cam, yank ss3200 converter, Kooks long tubes, Bwoody true cold air kit, ZL1 Pump, magnaflow 3" cat-back, lowering springs,BMR control arms and tie rod bars, 3.73 gears, diff mounts, RX can, ADM fuel controller

07-27-2009, 11:56 PM	#14
PatrickfromMD Drives: Buick Enclave/Corvette/2010 Camaro Join Date: Aug 2008 Location: Maryland Posts: 421	Personally, I would look for pistons with larger reliefs, so I could run a cam with more lift, more duration, or with less phase limiting. The VVT is a technology that has yet to be fully tapped I’d probably look to supercharge as well, so the lower compression due to deeper reliefs would be ideal for me. (i.e. forged with deap reliefs or dish for about 9/1 compression and more clearance for a better cam…30 degrees phase limiting perhaps?) __________________ *56K miles and still going strong* 2SS/RS IOM ext w/cyber grey stripes, tinted windows, IO int Auto ProTorque prototype Converter, Chuck Mosello of Westchester Corvettes Custom Tune T&T installed SLP Longtubes, Powerflow X Pipe, and Powerflow axle back JL 10W3 in custom side sub box, new door tweeters, Alpine 5ch 600 watt T&T configured ACS front Fascia w/ heritage grill, splitter, dual color halos, , led markers, taillight bezels , all accented in CGM Gary Custom Z vented fenders. Vararam ver 2

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
GMPP Camshaft	Camaro_Psycho	Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons	16	05-11-2009 01:58 AM
Camaro SS Questions. 500-600hp possible on stock internals?	Gone	Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons	36	04-22-2009 09:04 PM

07-27-2009, 09:54 PM	#1
ToddSS ZZ Motorsports Sales Rep Drives: 2010 SIM 1SS Join Date: Jul 2009 Location: moving to Texas Posts: 149	Looking for Forged Rods and Pistons for L99 Just as the title says. Anybody come across a maker yet? I've done a few searches and come up with nill.

07-27-2009, 10:20 PM	#5
2SSRS@Gen5diy Drives: 2014 Z/28 #82+#192, 18ZLE 66Nova Join Date: Oct 2008 Location: By the lake in AZ Posts: 15,728 View My Garage	How about a gm part #19170988 for the crank and and part #12603616 for a crank And for the connecting rods we have from 6.0" to 6.2 " hear you go 6.000" # 19166964 6.100" # 19166965 6.125" # 19166966 6.150" # 19166967 6.200" # 19166968

07-27-2009, 10:39 PM	#6
rodimus prime Account Suspended Drives: Cargo van. Join Date: Jul 2009 Location: Metal Metal Land Posts: 1,247	The pistons are different. Or at least they have exhaust valve relief cuts in them. But the crank and rods out of the ls9 would work. Infact a ls9 is an ls3 with different crank rods and pistons....plus a supercharger.

07-27-2009, 10:53 PM	#9
rodimus prime Account Suspended Drives: Cargo van. Join Date: Jul 2009 Location: Metal Metal Land Posts: 1,247	The l99 has valve reliefs due to VVT. The ls3 doesnt have relief, thus the higher compression ratio.

07-27-2009, 11:05 PM	#10
hot ss Drives: aqua 2ss l99 Join Date: Jun 2009 Location: Edmonton Posts: 1,215	0.3 cr. woohoo the L99 is a natural born KR killer.

07-27-2009, 11:17 PM	#12
hot ss Drives: aqua 2ss l99 Join Date: Jun 2009 Location: Edmonton Posts: 1,215	yarrrr.