SELLSZ06

iTrader: (12)

especially if you want big power now, then room and quality to grow
Spend it $ once!!

sean058621

iTrader: (2)

aaaaahhh!! so much info here.


I know everyone is going to like what they have.

I wish there was some independent testing done.


if I get those afrs I'll be on my stock ls2 manifold.. that is going to choke a lot of power i presume??


I've spent hours..days.. almost a month researching heads and all I get is that people like what they have..

I still have no idea what I'm going to go with.

SICKSS/Z28

ya too bad ls2portworks closed they ported them for 250 and results werent bad but sell that ls2 for 150-200 and buy a set of heads you want you cant go wrong with prc or patriot afr's arnt worth the mony imo if you cant spand an extra 500-100 to have someone port them more my buddy cunfuzed has prc stage III and made 555 N/A through a 6 speed

but L92's are the best for a cheap budget

sean058621

iTrader: (2)

and you said he is selling them? I'm confused.


and the l92 thing... I hear they are great flowing heads but you have to go to an l76 intake. which I hear is extremely constrictive..

SICKSS/Z28

the L76 flows about the same as the fast 90 unported both around 300cfm and fast is coming out with a new intake LSXR 102mm you can use a 90,92,95mm or you can go carb style intake or expensive sheetmetal

ps no he is not selling them he had the 408 with patriots and now he has prc 237cc with a different motor

sean058621

iTrader: (2)

I just bought a 96mm typhoon and I"m doing the patriots. they are what fits in my budget and everyone I know that is running them is satisfied.

SICKSS/Z28

what size can and other mods? what tb? rev?

sean058621

iTrader: (2)

haven't nailed down the cam yet. builder is going to build the cam around the motor. which we now have mapped out. I will no cam specs this afternooon.

I will be running the stock ls2 TB, I've not heard anything bad about it..

Jason 98 TA

iTrader: (4)

Sean welcome to the ls1tech board. Glad you've chosen us for your short-block & I'd be more than happy to help you select a cylinder head. We're working on finishing up our new engine dyno facility & I'd be more than happy to work with you to get that short-block you purchased on the dyno for some cylinder head testing. We have a open dyno policy, we're always willing to help test products & compare products with the customer. That's the best way for us to keep on top of the market & make sure we build the best possible products. If you'd like to come down we can see about setting up your short-block on the dyno & testing it with a few different cylinder head combinations. A little bit of testing never hurts! We bought this dyno & built the room for just this type of situation, there's absolutely no better way to compare than on the same motor, same day, one change at a time!!

sean058621

iTrader: (2)

hello, thank you!!

I wish I could come down and do all that

but I'm going thru trent del ponte in brighton colorado, he does a lot of business with you guys.

we are using my stock block and clearancing .. so I'm just buying a rotating assembly.

I wish I could go down there man!! sounds like an awesome setup

SICKSS/Z28

why use a 90mm on a 96mm intake?

black00ssFL

iTrader: (24)

I'd seriously look into an L92/L76 combo. You can have CNC heads with .650 valve springs and manley valves for $800 from SDPC, then another $400 for LS3 intake, fuel rail, and injectors (more than enough for your setup). With a proper cam spec'ed to it, it should be right at 500rwhp with supporting mods, all for $1200. Add the price of a good set of LS6 heads, TFS, AFR, PRC and the cost of a 90/90 and the cost of new injectors....you'd be saving a ton of money. Plus, you'll be using a cam with less overlap than a cam you'd need to make the same power from other heads. Driveability will be TONS better than the other heads. Now granted your power may be down 20-30 hp, but you'd save will over a couple of grand, and have stock-like drivability.

Fryguy302

iTrader: (3)

Where can you get CNC L92 heads with manley valves for $800?

Black_Phantom

TFS 235 And have fun with your 500 rwhp

Jason 98 TA

iTrader: (4)

Sorry to hear we cant get together on the dyno & test them all for you. Let us know if we can help in any way! If you want to discuss the combo & possible options just give me a call!

black00ssFL

iTrader: (24)

http://www.sdparts.com/product/SD880...ftSprings.aspx

smok'nZ

iTrader: (160)

1600$ for a set of heads that flow 360's thats awesome and an intake for 400$ that flows almost 300 cfm it cant be beat for the money

SIC LSX

iTrader: (10)

Yup if you dont have the $ to spend on some trick flow get some L92 heads valves are little heavy but you canr get a upgrade. Look here
http://www.texas-speed.com/shop/item...d=697&catid=40

smok'nZ

iTrader: (160)

yup my L92's are in the shop today i hope to have them back by monday

99blancoSS

iTrader: (115)

Thats 360 on a 4.155 bore.