NEED HELP/ADVICE PLZ - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Nightmare2012 · 02-19-2013, 12:58 PM

I just recently put in my order for a new cam (night fury) and the l99 to ls3 conversion kit. What i am noticing bout the kit is that it doesn't have the hollow stem valves of the ls3, should i be worried? Also i have milled and ported/polished heads (milled to 20 thousandths)if i do need the valves where can i buy them and which one are the best? I dont want to have problems with valve float.

bmbbl be · 02-19-2013, 01:08 PM

I have a l99 to ls3 conversion,,, i believe i still have stock valves and my heads were milled .010 ,,, i have 2c cam from livernois plus a maggie supercharger... i assume your getting new valve springs ?

Nightmare2012 · 02-19-2013, 01:15 PM

Yes i have the btr. 660 lift dual valve springs with titanium retainers how much lift is that cam? Any valve float?

litle88 · 02-19-2013, 01:17 PM

You can swap them out, it would be beneficial. Do you have Valve springs? If so look into Brian Tooley's platinum springs. They have a "0" failure record on them.

Didn't forget that you being an L99 you have -2cc valve reliefs but ALWAYS measure regardless. Good luck bud.

litle88 · 02-19-2013, 01:19 PM

Awesome!
If you can swing the valves money wise, I'd go for it since they gotta come off bud.

BTR SLR lifters are also badazz! IMHO.

Nightmare2012 · 02-19-2013, 01:21 PM

Thanks litle! I was kinda hoping you'll chime in. Where can i get the valves and any estimate of how much they run for?

Nightmare2012 · 02-19-2013, 01:29 PM

Or does any vendor in here sell them ive heard titanium intake valves and Inconel exhaust valves,are the best but dont know where to buy them at

litle88 · 02-19-2013, 01:32 PM

Not a problem bud, you can shop around but I'm sure places like TEA, SDPC, WCCH, LPE or AI will have them. GET the part number and google too bud. Iirc they are around 2?.00 Bux? Each

Nightmare2012 · 02-19-2013, 01:34 PM

Alright i will thanks bud you're always of great help

Fast6.3 · 02-19-2013, 01:51 PM

Lpe sells them i think they are gm manley also makes a hollow valve for the ls3 but unless youre spinning past 7000 rpmd there is no benefit but if you got the cash i would do it a lighter valvetrain is always better if your lift is higher than 625 i wouldnt use stock rockers i would go with a shaft setup

litle88 · 02-19-2013, 02:49 PM

I don't think he needs a shaft setup with his combo BUT a lighter valvetrain is always good IMHO. I mean hes doing the Ls3 conversion lol might as well finish it a reek the benefits.

Nightmare2012 · 02-19-2013, 02:56 PM

Lol yea i just saw the ls7 valves and they are definitely pricey 90 bucks each and thats the best price i found 12591644 that's the pt# for intake valves and 12618110 exhaust valves. The exhaust valves were only 30.xx though. My cam is 617/624 do i still need the shaft lifters?

LSX Camaro · 02-19-2013, 03:12 PM

I am doing the same project on my Camaro. I went with the BTR .660 springs and the BTR Slow leak down lifters. I have compared the LS3 valves and the Ferrea, the LS3 valves are lighter.

My build is here: http://www.camaro5.com/forums/showthread.php?t=271232

Nightmare2012 · 02-19-2013, 03:31 PM

I love your build its nice and clean!!! Awesome work and attention to detail!! How much rwhp did you put down? And any quarter mile times?

02-19-2013, 12:58 PM	#1
Nightmare2012 come find out;) Drives: stockish 2012 camaro ss Join Date: Oct 2012 Location: speed county Posts: 2,166 View My Garage	NEED HELP/ADVICE PLZ I just recently put in my order for a new cam (night fury) and the l99 to ls3 conversion kit. What i am noticing bout the kit is that it doesn't have the hollow stem valves of the ls3, should i be worried? Also i have milled and ported/polished heads (milled to 20 thousandths)if i do need the valves where can i buy them and which one are the best? I dont want to have problems with valve float.

02-19-2013, 01:17 PM	#4
litle88 V8 Lounge member #2 Drives: 2001 Ws6 Join Date: Sep 2009 Location: Burbank,IL Posts: 6,373	You can swap them out, it would be beneficial. Do you have Valve springs? If so look into Brian Tooley's platinum springs. They have a "0" failure record on them. Didn't forget that you being an L99 you have -2cc valve reliefs but ALWAYS measure regardless. Good luck bud. __________________ 2001 ws6, 40k miles, Ls3 416 stroker, short block built by PER the rest by me. LPE Ls3 heads milled to 12-1 comp, FAST 102, NW 102, kooks 2", dual DMH cutouts, Magnaflow C/B, BTR cam + springs. Full UMI suspension.

02-19-2013, 01:19 PM	#5
litle88 V8 Lounge member #2 Drives: 2001 Ws6 Join Date: Sep 2009 Location: Burbank,IL Posts: 6,373	Awesome! If you can swing the valves money wise, I'd go for it since they gotta come off bud. BTR SLR lifters are also badazz! IMHO. __________________ 2001 ws6, 40k miles, Ls3 416 stroker, short block built by PER the rest by me. LPE Ls3 heads milled to 12-1 comp, FAST 102, NW 102, kooks 2", dual DMH cutouts, Magnaflow C/B, BTR cam + springs. Full UMI suspension.

02-19-2013, 01:32 PM	#8
litle88 V8 Lounge member #2 Drives: 2001 Ws6 Join Date: Sep 2009 Location: Burbank,IL Posts: 6,373	Not a problem bud, you can shop around but I'm sure places like TEA, SDPC, WCCH, LPE or AI will have them. GET the part number and google too bud. Iirc they are around 2?.00 Bux? Each __________________ 2001 ws6, 40k miles, Ls3 416 stroker, short block built by PER the rest by me. LPE Ls3 heads milled to 12-1 comp, FAST 102, NW 102, kooks 2", dual DMH cutouts, Magnaflow C/B, BTR cam + springs. Full UMI suspension.

02-19-2013, 02:49 PM	#11
litle88 V8 Lounge member #2 Drives: 2001 Ws6 Join Date: Sep 2009 Location: Burbank,IL Posts: 6,373	I don't think he needs a shaft setup with his combo BUT a lighter valvetrain is always good IMHO. I mean hes doing the Ls3 conversion lol might as well finish it a reek the benefits. __________________ 2001 ws6, 40k miles, Ls3 416 stroker, short block built by PER the rest by me. LPE Ls3 heads milled to 12-1 comp, FAST 102, NW 102, kooks 2", dual DMH cutouts, Magnaflow C/B, BTR cam + springs. Full UMI suspension.

02-19-2013, 01:08 PM	#2
bmbbl be Drives: 2010 CAMARO SS Join Date: Apr 2010 Location: ohio Posts: 1,360	I have a l99 to ls3 conversion,,, i believe i still have stock valves and my heads were milled .010 ,,, i have 2c cam from livernois plus a maggie supercharger... i assume your getting new valve springs ?

02-19-2013, 01:15 PM	#3
Nightmare2012 come find out;) Drives: stockish 2012 camaro ss Join Date: Oct 2012 Location: speed county Posts: 2,166 View My Garage	Yes i have the btr. 660 lift dual valve springs with titanium retainers how much lift is that cam? Any valve float?

02-19-2013, 01:21 PM	#6
Nightmare2012 come find out;) Drives: stockish 2012 camaro ss Join Date: Oct 2012 Location: speed county Posts: 2,166 View My Garage	Thanks litle! I was kinda hoping you'll chime in. Where can i get the valves and any estimate of how much they run for?

02-19-2013, 01:29 PM	#7
Nightmare2012 come find out;) Drives: stockish 2012 camaro ss Join Date: Oct 2012 Location: speed county Posts: 2,166 View My Garage	Or does any vendor in here sell them ive heard titanium intake valves and Inconel exhaust valves,are the best but dont know where to buy them at

02-19-2013, 01:34 PM	#9
Nightmare2012 come find out;) Drives: stockish 2012 camaro ss Join Date: Oct 2012 Location: speed county Posts: 2,166 View My Garage	Alright i will thanks bud you're always of great help

02-19-2013, 01:51 PM	#10
Fast6.3 Drives: 2016 2SS coupe 2015 3LT Stingray Join Date: Aug 2012 Location: El paso texas Posts: 880 View My Garage	Lpe sells them i think they are gm manley also makes a hollow valve for the ls3 but unless youre spinning past 7000 rpmd there is no benefit but if you got the cash i would do it a lighter valvetrain is always better if your lift is higher than 625 i wouldnt use stock rockers i would go with a shaft setup

02-19-2013, 02:56 PM	#12
Nightmare2012 come find out;) Drives: stockish 2012 camaro ss Join Date: Oct 2012 Location: speed county Posts: 2,166 View My Garage	Lol yea i just saw the ls7 valves and they are definitely pricey 90 bucks each and thats the best price i found 12591644 that's the pt# for intake valves and 12618110 exhaust valves. The exhaust valves were only 30.xx though. My cam is 617/624 do i still need the shaft lifters?

02-19-2013, 03:12 PM	#13
LSX Camaro Master ASE, GM, LSX Tech. Drives: 2010 Camaro SS Join Date: Oct 2012 Location: Austin, TX Posts: 1,034	I am doing the same project on my Camaro. I went with the BTR .660 springs and the BTR Slow leak down lifters. I have compared the LS3 valves and the Ferrea, the LS3 valves are lighter. My build is here: http://www.camaro5.com/forums/showthread.php?t=271232

02-19-2013, 03:31 PM	#14
Nightmare2012 come find out;) Drives: stockish 2012 camaro ss Join Date: Oct 2012 Location: speed county Posts: 2,166 View My Garage	I love your build its nice and clean!!! Awesome work and attention to detail!! How much rwhp did you put down? And any quarter mile times?