07-11-2016, 08:02 PM | #1 |
Drives: 1968 firebird Join Date: Jul 2016
Location: Baton Rouge
Posts: 48
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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 |
Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012
Location: Vance Alabama
Posts: 8,019
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I'd go solid roller cam and aftermarket heads.
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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 |
07-11-2016, 10:30 PM | #3 |
Too much is never enough!
Drives: AGP TT SS [COTW] 4/20/15 Join Date: Feb 2014
Location: Toledo,OH
Posts: 4,149
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This. And I'd let that dude Bo White port my heads.
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AGP TT kit, 54/57 Forged rotating assembly, Custom grind cam... Dual nozzle meth, ID850's, Livernois dual fuel pumps, ECS BAP, 25% UDP, 3 inch Magnaflow catback with X pipe, Mantic 9000 clutch, DSS 1000hp axles, DSS aluminum driveshaft, ZL1 rear end, solid subframe bushings, HE differential offset bushings, BMR Trailing arm, BMR toe rods, Lingenfelter LNC-2000,SJM Line Lock. 747 whp 714wtq
Build thread http://www.camaro5.com/forums/showth...55#post8107855 |
07-12-2016, 05:25 AM | #4 |
Drives: 2011 Camaro SS Join Date: Dec 2010
Location: Boynton Beach FL
Posts: 124
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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
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07-12-2016, 07:14 AM | #5 |
old school chevy rodder
Drives: 2013 2SS/RS Manual,DM exhaust,CRT Join Date: Jul 2012
Location: Oregon
Posts: 5,587
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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.
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2021 Wild Cherry ZL1 A10, Sunroof, Data, Carbon, Nav, RotoFab Dry CAI, Elite x2, Borla ATK, Driveshaft shop
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07-12-2016, 09:30 AM | #6 |
Drives: 1968 firebird Join Date: Jul 2016
Location: Baton Rouge
Posts: 48
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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
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07-12-2016, 01:33 PM | #7 |
Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012
Location: Vance Alabama
Posts: 8,019
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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.
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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, 05:05 PM | #8 |
Drives: 2011 Camaro SS Join Date: Dec 2010
Location: Boynton Beach FL
Posts: 124
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07-12-2016, 06:35 PM | #9 |
Drives: 2010 Camaro 2SS Victory Red 6M Join Date: Apr 2015
Location: Gulf Coast, TX
Posts: 1,424
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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.
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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, 07:03 PM | #10 |
Drives: 2011 Camaro SS Join Date: Dec 2010
Location: Boynton Beach FL
Posts: 124
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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 |
Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012
Location: Vance Alabama
Posts: 8,019
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A legit 540rwhp is very hard to attain N/A
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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, 12:31 AM | #12 |
Master ASE, GM, LSX Tech.
Drives: 2010 Camaro SS Join Date: Oct 2012
Location: Austin, TX
Posts: 1,034
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2010 2SSRS A6, Custom Pat G. Cam, WCCH Cylinder Heads, Kooks Headers/Exhaust, BTR Valvetrain, Fluidampr 25% UDP, All Engine ARP bolts, Flex-a-lite radiator/Trans cooler, Yank converter, PFADT Suspension, ADM Race Intake/Scoop, Torq tow hook, CFD auto shifter, Dynojet AFR gauge, Aeroforce scan gauge, Brake Performance rotors/pads
Prothane bushings, ZL1 wheels, spoiler, Z/28 wickerbill, 1LE Aero/Suspension Package, Anderson Composites COPO Carbon Fiber Hood, LED lighting, Elite Catch Can, Improved Racing oil pan baffle, crank scraper, windage tray 480 RWHP 452 RWTQ + Nitrous Express 150 Shot |
07-13-2016, 01:01 PM | #13 |
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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
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'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 |
Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012
Location: Vance Alabama
Posts: 8,019
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Your running a FAST intake on the LS7 heads correct?
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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 |
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