Let's talk heads - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Redbeard11 · 11-13-2017, 06:33 PM

Looking for opinions for my setup. I have a LS3 with an eldebrock s/c, 3" pulley, btr 3 pd cam, dual alky control, 1 7/8 headers and e-85 at 725 rwhp. Wanting to do some heads to increase flow. Are there any gains to be had power wise?What would be a good choice ? Ported ls3,lsa, or should I go aftermarket? Any input is appreciated. THANKS

JOURDAN · 11-13-2017, 06:38 PM

Is that all on the OEM rotating assy?

jrhagen · 11-13-2017, 06:58 PM

I asked my engine guy the same question, we have similar builds. He said save your money. New heads would increase flow, reduce boost but I would not see much in addional hp.
I saved my money.

Redbeard11 · 11-13-2017, 07:08 PM

Yes it is all stock assembly. Parts have 30k miles with no oil leaks and not a puff of smoke! These ls3 motors are beasts! I am concerned that I might be restricting the motor which I don't want to do, right?

JOURDAN · 11-13-2017, 07:48 PM

I am unable to give any real advise. But ask some basic questions.

My thoughts are the heads are capable of make huge power naturally aspirated.

There may not be much to gain at the current boost.

What about replacing the pistons, lowering the compression and raising the boost?

I build super bike motors and just learning about these engines. So..

Gasoholic · 11-13-2017, 07:59 PM

I'm thinking if your trying to eek out as much HP as possible then yes. A set of high flowing heads would help. But dang, seems like your already pushing the limits of the OE internals.
Maybe just save the money for now. You may need it later.

christianchevell · 11-14-2017, 07:10 AM

Actually the edelbrock is a milder supercharger normally you must have yours turned up a lot.... And I have a forged new block, and ported heads. There is of course better of anything..... but the purpose?

11-13-2017, 06:33 PM	#1
Redbeard11 Drives: 11 camaro Join Date: Mar 2017 Location: Canton ga Posts: 129	Let's talk heads Looking for opinions for my setup. I have a LS3 with an eldebrock s/c, 3" pulley, btr 3 pd cam, dual alky control, 1 7/8 headers and e-85 at 725 rwhp. Wanting to do some heads to increase flow. Are there any gains to be had power wise?What would be a good choice ? Ported ls3,lsa, or should I go aftermarket? Any input is appreciated. THANKS __________________ 2011 1SS/ Thompson mtrsprts 416,Katech rotate assembly and cnc ls3 heads. Ferrera st. valves,BTR 685 Spr. F1A Procharger,3.70 pulley on 12 rib.Holley aux fuel pump,ZL1 fp and fpcm,dual alky control,Vmax TB,DSX E-85 sensor, fic1300 inj.Lsxperts custom cam,melling OP,mishimoto dual pass HX, ARH 2" headers, MD 4l80e, FTI 3200 stall,3:73 zl1 cradle, BC coil overs ,pfadt sway bars, EBC brakes and slotted rotors: 843rwhp tuned by LSXPERTS

11-13-2017, 07:08 PM	#4
Redbeard11 Drives: 11 camaro Join Date: Mar 2017 Location: Canton ga Posts: 129	Yes it is all stock assembly. Parts have 30k miles with no oil leaks and not a puff of smoke! These ls3 motors are beasts! I am concerned that I might be restricting the motor which I don't want to do, right? __________________ 2011 1SS/ Thompson mtrsprts 416,Katech rotate assembly and cnc ls3 heads. Ferrera st. valves,BTR 685 Spr. F1A Procharger,3.70 pulley on 12 rib.Holley aux fuel pump,ZL1 fp and fpcm,dual alky control,Vmax TB,DSX E-85 sensor, fic1300 inj.Lsxperts custom cam,melling OP,mishimoto dual pass HX, ARH 2" headers, MD 4l80e, FTI 3200 stall,3:73 zl1 cradle, BC coil overs ,pfadt sway bars, EBC brakes and slotted rotors: 843rwhp tuned by LSXPERTS

11-14-2017, 07:10 AM	#7
christianchevell old school chevy rodder Drives: 2013 2SS/RS Manual,DM exhaust,CRT Join Date: Jul 2012 Location: Oregon Posts: 5,587 View My Garage	Actually the edelbrock is a milder supercharger normally you must have yours turned up a lot.... And I have a forged new block, and ported heads. There is of course better of anything..... but the purpose? __________________ 2021 Wild Cherry ZL1 A10, Sunroof, Data, Carbon, Nav, RotoFab Dry CAI, Elite x2, Borla ATK, Driveshaft shop

11-13-2017, 06:38 PM	#2
JOURDAN Drives: 2010 Camaro SS 2SS Join Date: Jul 2017 Location: Oregon Posts: 145	Is that all on the OEM rotating assy?

11-13-2017, 06:58 PM	#3
jrhagen Banned Drives: Camaro Join Date: Mar 2013 Location: USA Posts: 2,701	I asked my engine guy the same question, we have similar builds. He said save your money. New heads would increase flow, reduce boost but I would not see much in addional hp. I saved my money.

11-13-2017, 07:48 PM	#5
JOURDAN Drives: 2010 Camaro SS 2SS Join Date: Jul 2017 Location: Oregon Posts: 145	I am unable to give any real advise. But ask some basic questions. My thoughts are the heads are capable of make huge power naturally aspirated. There may not be much to gain at the current boost. What about replacing the pistons, lowering the compression and raising the boost? I build super bike motors and just learning about these engines. So..

11-13-2017, 07:59 PM	#6
Gasoholic Drives: o Join Date: Jun 2017 Location: under a rock Posts: 220	I'm thinking if your trying to eek out as much HP as possible then yes. A set of high flowing heads would help. But dang, seems like your already pushing the limits of the OE internals. Maybe just save the money for now. You may need it later.