New member cylinder head help - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

1968firebirdls3 · 07-11-2016, 08:02 PM

Hello all. I'm a new guy to this fourm, but have heard nothing but great things. I need a little help. I am building a 416 ls3 stroker for my 68 firebird. I'm building from a bare block so I have no heads. I would like to achieve around 540 N/A. Is this possible? There is a fella selling bare 821 casting heads for 300. Should I purchase those and send them off to Texas speed for porting, prc springs and stainless valves for close to 1500? Or pay 800 more for the trick flow 255? Or what is a better option. I haven't purchased a cam yet, but will probably choose the 235/239 Texas speed cam. Is this a good cam for this size engine? Car will mostly be a Saturday Sunday cruiser and the occasional track once a month. Will spray engine also at the track, with 150 shot wet. Compression is around 11.2 to 1. So far my build consist of.
4" lunanti crank
Lunanti h beam rods.
Wesico Pistons and King xp bearings with arp main studs. I apologize up front if this is to much for a new member to post.

Bo White · 07-11-2016, 09:59 PM

I'd go solid roller cam and aftermarket heads.

1KillerSS · 07-11-2016, 10:30 PM

Quote:

Originally Posted by Bo White

I'd go solid roller cam and aftermarket heads.

This. And I'd let that dude Bo White port my heads.

camaro34 · 07-12-2016, 05:25 AM

Quote:

Originally Posted by Bo White

I'd go solid roller cam and aftermarket heads.

Don't use a solid roller unless the car is a dedicated race car. I would recommend going with aftermarket heads. Give either trickflow or mast a call, they can recommend which head will work best with your setup and application. Both of those heads run very well. After you make the decision on which head your going to run, call comp cams with the specs from the head and the engine, including the flow numbers. Make sure you are honest with them about what the car will be used for. They will set you up with a cam built for your application. I hope this helps

christianchevell · 07-12-2016, 07:14 AM

GMPP cnc factory ported heads come complete with hollow stem intake valves for around $1300 a pair no core new, that's what I went with for the price because it can not be beat. If your thinking your going to gain so much more with heads your going to spend a way lot more. DOne up with the 235/239 you should kick 500 rwhp on a mustang and about that in torque, now if you want to go into intakes the only deal is FAST with a 102 TB for really whats out there unless your doing a more race car then you could go the long runner tunnelram type high/midrise and they show some number gains yet are not the best down low like a tunnel ram is and are not phenolic resin . The FAST does better on a larger than stock cube size ls3 , or you can go really spendy with small bore ls7 heads and a MSD airforce intake. If your just interested in numbers the money does go way up. Hollow stem intakes are better than the solids on a L99 head and the engines have a higher redline..gotta run.

1968firebirdls3 · 07-12-2016, 09:30 AM

Thanks for the responses guys. I saw the gmpp heads. I'm leaning towards those or a dart bare head on eBay for 800 I think. I will save up if need be for a better head. As far as intakes go, I will go fast 102 and the tb

Bo White · 07-12-2016, 01:33 PM

To make the power your looking for my solid roller statement stands. I've ran solid on the street. Nothing to it. Its my next setup and I drive 30k miles a year.

camaro34 · 07-12-2016, 05:05 PM

Quote:

Originally Posted by Bo White

To make the power your looking for my solid roller statement stands. I've ran solid on the street. Nothing to it. Its my next setup and I drive 30k miles a year.

Why do you need a solid roller to make 540?

2010reddevil · 07-12-2016, 06:35 PM

Solid roller eliminates any pumping losses of a hydraulic roller setup. It also allows you to run a much more aggressive ramp angle compared to a hydraulic roller. The only downside is checking cold lash periodically and of course, the requesite valvespring swaps periodically. You have to do the valve springs either way, so if you're gonna be under there, may as well make the most power that you can.

camaro34 · 07-12-2016, 07:03 PM

I am well aware of the benefits of a solid roller as I build race engines for a living. A solid roller is unnecessary for car that is going to be a cruiser with the occasional track event. A solid roller requires frequent maintance because it is hard on valvetrain components. A hydraulic roller that is designed for the op will perform much better then an oversized solid roller

Bo White · 07-12-2016, 09:57 PM

A legit 540rwhp is very hard to attain N/A

LSX Camaro · 07-13-2016, 12:31 AM

Quote:

Originally Posted by Bo White

A legit 540rwhp is very hard to attain N/A

SSBUSDRVR · 07-13-2016, 01:01 PM

Close to 540 Legit 530'sNA 416 with Mast LS7 Heads and a pretty Healthy Custom Hyd VR Cam Motion Grind Cam on 93 200 Shot going on it.PM if want more info

Bo White · 07-13-2016, 01:12 PM

Your running a FAST intake on the LS7 heads correct?

07-11-2016, 08:02 PM	#1
1968firebirdls3 Drives: 1968 firebird Join Date: Jul 2016 Location: Baton Rouge Posts: 48	New member cylinder head help Hello all. I'm a new guy to this fourm, but have heard nothing but great things. I need a little help. I am building a 416 ls3 stroker for my 68 firebird. I'm building from a bare block so I have no heads. I would like to achieve around 540 N/A. Is this possible? There is a fella selling bare 821 casting heads for 300. Should I purchase those and send them off to Texas speed for porting, prc springs and stainless valves for close to 1500? Or pay 800 more for the trick flow 255? Or what is a better option. I haven't purchased a cam yet, but will probably choose the 235/239 Texas speed cam. Is this a good cam for this size engine? Car will mostly be a Saturday Sunday cruiser and the occasional track once a month. Will spray engine also at the track, with 150 shot wet. Compression is around 11.2 to 1. So far my build consist of. 4" lunanti crank Lunanti h beam rods. Wesico Pistons and King xp bearings with arp main studs. I apologize up front if this is to much for a new member to post.

07-11-2016, 09:59 PM	#2
Bo White Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012 Location: Vance Alabama Posts: 8,019	I'd go solid roller cam and aftermarket heads. __________________ Retired wanna be cylinder head porter 2015 2SS 1LE Clutch reservoir, Vararam DRX, ported TB, TSP 2" headers, MGW shifter Totalled: 2010 1SS Wilkes Performance/Eagle 416 shortblock, TSP custom valvetrain, PRC 260 heads, Edelbrock Pro Flo 102, th400 swap, 8" PTC 5500 stall= 535/435 at the wheels tuned Gen 3 Performance and Dyno 10.97 @ 124 full weight in 3100 DA CamaroFest X

07-12-2016, 07:14 AM	#5
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	GMPP cnc factory ported heads come complete with hollow stem intake valves for around $1300 a pair no core new, that's what I went with for the price because it can not be beat. If your thinking your going to gain so much more with heads your going to spend a way lot more. DOne up with the 235/239 you should kick 500 rwhp on a mustang and about that in torque, now if you want to go into intakes the only deal is FAST with a 102 TB for really whats out there unless your doing a more race car then you could go the long runner tunnelram type high/midrise and they show some number gains yet are not the best down low like a tunnel ram is and are not phenolic resin . The FAST does better on a larger than stock cube size ls3 , or you can go really spendy with small bore ls7 heads and a MSD airforce intake. If your just interested in numbers the money does go way up. Hollow stem intakes are better than the solids on a L99 head and the engines have a higher redline..gotta run. __________________ 2021 Wild Cherry ZL1 A10, Sunroof, Data, Carbon, Nav, RotoFab Dry CAI, Elite x2, Borla ATK, Driveshaft shop

07-12-2016, 01:33 PM	#7
Bo White Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012 Location: Vance Alabama Posts: 8,019	To make the power your looking for my solid roller statement stands. I've ran solid on the street. Nothing to it. Its my next setup and I drive 30k miles a year. __________________ Retired wanna be cylinder head porter 2015 2SS 1LE Clutch reservoir, Vararam DRX, ported TB, TSP 2" headers, MGW shifter Totalled: 2010 1SS Wilkes Performance/Eagle 416 shortblock, TSP custom valvetrain, PRC 260 heads, Edelbrock Pro Flo 102, th400 swap, 8" PTC 5500 stall= 535/435 at the wheels tuned Gen 3 Performance and Dyno 10.97 @ 124 full weight in 3100 DA CamaroFest X

07-12-2016, 06:35 PM	#9
2010reddevil Drives: 2010 Camaro 2SS Victory Red 6M Join Date: Apr 2015 Location: Gulf Coast, TX Posts: 1,424	Solid roller eliminates any pumping losses of a hydraulic roller setup. It also allows you to run a much more aggressive ramp angle compared to a hydraulic roller. The only downside is checking cold lash periodically and of course, the requesite valvespring swaps periodically. You have to do the valve springs either way, so if you're gonna be under there, may as well make the most power that you can. __________________ 2011 2SS 6A Red Jewel Metallic, Vararam Tune CAI, Magnaflow 3" Competition c/b, Speed Engineering 1-7/8 LT's, Circle D 5C, M/T 275/40R20 S/S, HPTuners tune by Ryan@GPI 12.3 @ 112 ACM as of 12/22/19 Gone on 12/28/19 R I P 2010 2SS 6M Victory Red/Black (old ride) CAI intake, Speed Engineering 1 7/8" LT's, X4 base tune, Flowmaster Outlaw axle-back. 12.6 @ 115 SAR as of 9/19/15 Gone but never forgotten.

07-12-2016, 09:30 AM	#6
1968firebirdls3 Drives: 1968 firebird Join Date: Jul 2016 Location: Baton Rouge Posts: 48	Thanks for the responses guys. I saw the gmpp heads. I'm leaning towards those or a dart bare head on eBay for 800 I think. I will save up if need be for a better head. As far as intakes go, I will go fast 102 and the tb

07-12-2016, 07:03 PM	#10
camaro34 Drives: 2011 Camaro SS Join Date: Dec 2010 Location: Boynton Beach FL Posts: 124	I am well aware of the benefits of a solid roller as I build race engines for a living. A solid roller is unnecessary for car that is going to be a cruiser with the occasional track event. A solid roller requires frequent maintance because it is hard on valvetrain components. A hydraulic roller that is designed for the op will perform much better then an oversized solid roller Last edited by camaro34; 07-12-2016 at 07:21 PM.

07-12-2016, 09:57 PM	#11
Bo White Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012 Location: Vance Alabama Posts: 8,019	A legit 540rwhp is very hard to attain N/A __________________ Retired wanna be cylinder head porter 2015 2SS 1LE Clutch reservoir, Vararam DRX, ported TB, TSP 2" headers, MGW shifter Totalled: 2010 1SS Wilkes Performance/Eagle 416 shortblock, TSP custom valvetrain, PRC 260 heads, Edelbrock Pro Flo 102, th400 swap, 8" PTC 5500 stall= 535/435 at the wheels tuned Gen 3 Performance and Dyno 10.97 @ 124 full weight in 3100 DA CamaroFest X

07-13-2016, 01:01 PM	#13
SSBUSDRVR Drives: '11 2SS/RS IBM/BLK M6 Join Date: Mar 2011 Location: Central FL Posts: 3,748 View My Garage	Close to 540 Legit 530'sNA 416 with Mast LS7 Heads and a pretty Healthy Custom Hyd VR Cam Motion Grind Cam on 93 200 Shot going on it.PM if want more info __________________ '11 IBM 2SS/RS Built and Tuned by Vengeance Racing Vengeance PCM Vengeance Racing Mast Black Label LS7 Headed 416 ProCharger Stage II D1X Race ,Monster Triple,Alky Control Meth Inj, Forgestar F14 Drag Version and a bunch of other blah blah blah.838/688 at 12lbs Street Friendly

07-13-2016, 01:12 PM	#14
Bo White Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012 Location: Vance Alabama Posts: 8,019	Your running a FAST intake on the LS7 heads correct? __________________ Retired wanna be cylinder head porter 2015 2SS 1LE Clutch reservoir, Vararam DRX, ported TB, TSP 2" headers, MGW shifter Totalled: 2010 1SS Wilkes Performance/Eagle 416 shortblock, TSP custom valvetrain, PRC 260 heads, Edelbrock Pro Flo 102, th400 swap, 8" PTC 5500 stall= 535/435 at the wheels tuned Gen 3 Performance and Dyno 10.97 @ 124 full weight in 3100 DA CamaroFest X