Magred2001vette

iTrader: (2)

I was looking for input from anybody who has done PP 5.3 heads 59cc with a 224/224 cam.
-HP/TQ?

I've also read about the seat issue w/ the LS6/6.0L heads, but from what I understand, is that the 5.3 heads are not welded up, they are only milled&cnc'ed.

Justin99TA

Magred, My father has a Magred 00 and we will be putting a set of PP 5.3 on his car next week as soon as they come in. He has a 224/224,581 581, 114 so I will be able tell you how it runs compared to a set of GTP S2 that were formally on the car. Terry told us both to go with the 5.3s over the LS6. I have a 99T/A that is getting the same heads only Im running a 224/228 584 596 114 cam. I can care less what the car puts down, I want 1/4 numbers! I talked to Terry yesturday and he told me mid 11s easy if not 11.2s in ideal condtions with or combos. I will know much more next week when both cars are running again.
Justin

JakeL

Why is that? Are all-out LS6 heads overkill with a relatively modest cam like a 224/224/114? i.e. you'd only see another 5-10 hp for your $700 difference in the head price?

I guess I'm curious why I consistently see folks being recommended to go with a "lesser" head when they're staying small-to-mid on cam sizes. Wouldn't you want the best heads you can get, even if your idle/emissions/torque/whatever tastes dictate you get a smaller cam?

Or does it come down to a bang-for-the-buck question? I see this kind of recommendation often enough that clearly it must be the "right" answer, so I'm curious as to why?

5.3's and a 224/224 cam sure seem to be a popular combo too - I bet your car will run great!

-Jake

foff667

iTrader: (2)

its not only the cam but the bore size...terry's are 6.0 heads welded up to create the smaller chambers...they will give some hp improvment over the 5.3's but not enough on a mild 346 to really be worth the extra cash...bigger isnt always better

1fastWS6

iTrader: (3)

Personally, I think the smaller intake ports on the 5.3 heads will produce more power with the small/medium cams over the LS6 style head due to increased flow velocity. So you may make a couple HP more with the LS6 head or even lose a few with the smaller cams.

But, the LS6 head should really shine with the bigger "max-effort" type cams.

KGSloan

couldn't have said it better myself. people don't realize this enough and just look at flow numbers and then get bad results. it's a good COMBINATION of parts that make a car run well

Tally TransAm

iTrader: (17)

i have the 5.3's and had the 224/581/112 cam

car went 120.3 mph in the 1/4 with stock gears, still needing to be tuned since the head install. weight around 3450 and 400 ft DA

Dave00C5

iTrader: (4)

Real Nice MPH !

Magred2001vette

iTrader: (2)

Looks like satisfied people w/ mild to moderate cams and heads...I guess all of you went this way to avoid all the shaking, stalling, and bucking in low RPM's.

cgworth

iTrader: (11)

Who is this Terry guy i keep reading about? And who has the best deal on the 5.3L heads

BAD ASS TA WS6

iTrader: (5)

Terry would be the owner of Patriot Performance, there's a link to their site on the right. They have the cheapest set of 5.3s around with no core charge. They should yeild some decent gains as well. Check out Absolute Speed, and TEA as well on the right-->

Rob

Magred2001vette

iTrader: (2)

PP 5.3 heads stage 2.....$1295
I wounder just how many of these are out on the streets now or have been sold period!

gomer

iTrader: (13)

I think I remember one of the guys from TSP posting that they had sold over 200 sets. Terry told me on the phone that there is over 100 sets of LS6 style out there.

Just think how many will be out there this time next year, since summit is going to start selling them this spring

Mike98WS6

iTrader: (5)

I've got a set of the PP 5.3's on my car.

Trevor @ Texas Speed & Perf.

iTrader: (3)

The 224/224 grind will work very well with the Patriot Performance cylinder heads. This was the first camshaft that we tried in my '02 SS A4, and it worked very well! I ran a best of 11.63 @ 114 MPH on a 1.58 60' with the 224R and stock cylinder heads. It has a nice idle that isn't too aggressive and has GREAT streetability characteristics.

As for Patriot's 5.3L vs. LS6-style stage II cylinder heads, they both work well on stock-cid setups. The 5.3L stage II heads are certainly hard to beat for the price! The LS6-style heads will help those that are looking to get every last ounce of horsepower and torque out of their setup, they'll be able to run 11:1 CR without reducing piston-to-valve clearance (i.e. not having to shave them for the added compression), and they'll give you plenty of growing room if you decide to go with a larger-cid setup in the future. If you plan to stay with the stock-cid engine and are looking to run a cam like the 224R, then the stage II 5.3L Patriot heads will work great. We've put down 440 RWHP with them! We have sold a LOT of Patriot's cylinder heads and have a lot of first-hand knowledge of what's working well with them. We've also seen results of the 5.3L heads vs. the LS6-style heads on a stock-cid LS1. The peak numbers were only up 5 RWHP, but the mid-range HP and TQ were up by 10 throughout the mid-range! There's more to it than just one number at one RPM point. The LS6-style cylinder heads are going to give you some added area under the curve and higher average power. This should interest you just as much as peak numbers because you'll spend a lot more time on the street in the mid-range than you will at 6500 RPM or wherever your setup makes peak HP.

FYI, Terry is not the owner of Patriot Performance. He is the project manager of Patriot, though, and he's the one that you would need to talk to if you had any technical questions.

Feel free to give us a call if you have any questions. We have some great package prices on the heads/cam packages.

Trevor
Texas Speed & Performance

NaSSty99

i have the Patriot stage 2 5.3 heads and a TR224 112 cam, Pacesetters w/ ORY, LS6 intake, lid and cut out, tunning by Nitro-Dave's
the numbers are 398hp and 388 tq, my car (99 SS M6 w/ chrome 17x11 ZR1 with 315's Heavy rims) also dynoned lower compared to others when it was stock (301 hp, 317tq) with a lid and a cut out only,
when i added the TR224 cam only and nothing else i got 323hp and 327tq, so you can see the gain with everything else over stock, and cam only dyno...
hope that helps

JakeL

To make sure I'm understanding:

Meaning that if somebody planned on building a 409 or 427 later on, the LS6 heads would do a better job until 'proper' heads with larger combustion chambers could be bought, (or the existing heads modified to suit) - is that about right?

I understand that heads and cam have to be optimized for a given motor size and other combination, but LS6 heads designed for a 346 would give you a significant amount (20hp?) more power on a 400+ci engine (in the meantime...) versus taking your 5.3's off your 346 and putting them on a new 400+ci engine.

Hopefully this is still relevant enough to the beginning of the thread.

-Jake

Trevor @ Texas Speed & Perf.

iTrader: (3)

Yes, the stage II LS6-style Patriot cylinder heads would be a much better upgrade if you upgrade to a larger-cid engine. You could have them opened up to the appropriate bore size and larger valves installed (depending on bore size), and they'd work well for you. The 5.3L heads can become a limiting factor on the larger-cid setups. If you are planning on sticking with stock cubes, then the 5.3L heads would be a more cost-effective decision.

Trevor
Texas Speed & Performance

cgworth

iTrader: (11)

I dont know alot about heads and and these diferant size's so bear with me guys. I was givin a price of $1295 for AP Engineering Stage 1 Ported LS1 Heads and you guys are saying that PP 5.3 heads stage 2 are $1295. which would be the better deal?? and produce more hp? also which would work better with a supercharger or nitrious setup?

mikemodano9c

im in the same boat as you man...

im picking between the AP stage 1's and the patriot 5.3 stage 2's...

i think im leaning towards AP because they have answered all my pm's really quick and i would like to try a new product...