Sales@Tick

iTrader: (3)

This customer is a friend of several of our customers and decided to bring his car to us for a head/cam/intake package which included our brand new V.2 Polluter camshaft. This customer opted for the 111LSA version, PRC As Cast 225cc cylinder heads and a black Fast 92mm intake manifold. We also installed a set of Kooks 1x7/8" headers and off road connection pipes to complete his exhaust modifications. Along with the exhaust a Vararam intake was installed and we opted to go SD on this one to get every last ounce of power out of it, and boy did we ever!

List of modifications:
Stock LS2 6.0 bottom end
PRC 225cc "As Cast" cylinder heads with 62cc chambers 11.47:1 SCR
Tick Performance V.2 Polluter camshaft 239/244 .62x/.59x 111+2 (Proves you don't need LSK and XE-R lobes to make BIG power!!!)
Fast 92mm intake with stock LS2 90mm TB(unported)
Kooks 1x7/8" headers and off-road connection pipes
Corsa Cat-back exhaust
Vararam intake
SD tuned on 93 octane pump gas

Idle Clip of camshaft:

I know some will say, how's the P to V with the 62cc chambers? It's fine in short. The "As Cast" PRC heads are cast with a 62cc chamber so no milling is required to achieve this chamber volume. Thus valve drop remains unaffected. Since they are a 13* valve angle head the valve drop is also greater than stock so you get great compression, room to run a big camshaft and big power is the result to put it bluntly.

Dyno graphs

STD:

SAE:


I was hoping the torque would hit 400rwtq a little sooner, but I'm very pleased with the power output overall!

427LS7HCI

Great Gains!

Jimbo1367

Damn Martin. Awsome #s!!

Sales@Tick

iTrader: (3)

Thanks guys! It sure is nice breaking 500rwhp in a power robbing car like a GTO!!! In a vette I can only imagine what it would put down!!!

KrisR

iTrader: (2)

Sweet.

What would you guess that combo would make in a stock-bottom ls1 c5? I have the same unported FAST 92 and LS2 TB.

Sales@Tick

iTrader: (3)

On the same dyno with every variable controlled to the best of ones ability at least 510-515Sae and 450rwtq+

I can only imagine how that rush of torque at 4 grand would feel in a Corvette. Anyone want to find out for me?

Mrtsunami20

iTrader: (1)

Great number..that power band looks smooth

KrisR

iTrader: (2)

I would love to find out! I need to determine if the bottom end of my engine is ok and I might be interested in switching up my setup.

Sales@Tick

iTrader: (3)

This would make an awesome package for a lightweight street car as well and/or a drag car. The torque just comes on like a freight train!

Sales1@Texas-speed

Awesome numbers! Definitely a solid combination.

CBAR02SLP

Martin

Would you care to estimate on a stock bottom gen 4, M6, all the same mods?

Thanks

455GTO

iTrader: (18)

Awesome results Martin. I especially love the torque curve and HP isnt just a peak, it carries over 500rwhp for a while.

garygnu

great power ,with out winding it out .this head has alot of potential ,I would like to see more cams tested with these heads.

adamantium

iTrader: (3)

Great results those PRC heads seem to be a great bang for the buck.

chrs1313

iTrader: (24)

Nice results and great combo...

Sales@Tick

iTrader: (3)

Aaron, like I said it's your special touch that did it! We will be buying more sets of these very soon.
A fourth gen F-body? Probably a few numbers better, not much though.
I love the torque as well especially how well the power carries. Torque is over 400rwtq from 4,000rpm all the way to 6500rpm and as you said 500rwhp from 5900 to 7000rpm.

Of course the internet experts will tell you that big cams can't make big torque or great average power.
I am very happy with this cylinder heads performance. After seeing Carter01's results on a Mustang Dyno with a single plane intake and small 232/234 cam I knew these were going to make some good power on this set-up as well. We all were expecting 470+ from this combo, but honestly never expected 500rwhp. It was a pleasant surprise to say the least.
Yes that they are.
Thanks Chris, means a lot coming from the 520rwhp stock bottom end king!!!

weldermike27408

500 out of a stock bottom end,shitty GTO IRS and as-cast heads and production style FAST intake is pretty good I think...very nice

yonerhottlt1

iTrader: (21)

Definitely impressive to say the least...that powerband looks awesome/fun!

Sales@Tick

iTrader: (3)

Thanks Mike! Just think, this 6.0 is making almost the same amount of horsepower your 416 does! Now, you've got a boat load more torque, but this thing is a beast!!! Just wait till you get those TFS 235's on yours with the added compression we tossed into the mix. I think we'll be just as impressed with your new set-up when the smoke clears as well.
Thanks Yoner! I drove this car yesterday and once again Jonathan has tamed the beast. This camshaft as 19 degrees of overlap@.050" which is to say the least a lot of overlap for a 3.622" stroke engine. You can drive the car at 55mph in 6th gear at 1200rpm with no bucking or surging whatsoever. Only 2 times while driving it for 30 minutes did I get any real noticeable cam surge and a quick blip of the throttle did away with that.

This thing is a monster though. From 4000rpm on up I've never felt a stock stroke N/A engine pull this hard. Normally with a stock stroke engine, when I shift and the rpm's drop it takes a second for the g-forces to climb again and put you back in the seat. This car even at the very bottom of its shift extension is pulling nearly as hard as it does up top. Very pleased with it as it's anything but a slug down low and not just a top end screamer.

weldermike27408

its wicked for sure Martin....