gtovan

What intake manifold do these work with and what is the chamber volume?

Bring the Noise

With the flow number listed I'ld go for a cam with medium duration and large lift for a stock LS2 install (23x/24x 112 to 114 lsa with .580" to .609" on the lift - go with roughly 10 to 14 more on the exhaust duration). Then tune the crap out of it so it would idle smooth and do daily driving duties.

L92 Head = L92/L76 Truck Manifold, L76 low profile manifold or Hand Fab'd Sheet Metal.
Stock Chamber starts at 70cc roughly. I'm hoping they'll have it down into the 64cc range so a stock LS2 wouldn't loose compression...

Thread Derail...

Man those heads with the L92 416 from SDPC along with the L76 manifold is actually well under the price point I was thinking.

(Rough est going with the prices that have been given for a 416 longblock using Precisions L92 head and SPDC for the rest)
$4499.95 for the short block (pulled from the SPDC thread)
$1495 for ported heads with new springs capable of .630" lift (given on page one of this thread)
$240 or so for 8 L92 intake and 8 L92 exhaust rocker arms + 2 rocker arm supports (pulled from SDPC's web page).
$217.85 for the GM HP Lifters (pulled from SDPC's web page).
$528.95 for the Low profile manifold (that includes 40lb injectors, fuel rails, and drive by wire TB) (pulled from SDPC's web page).
$77.56 for the L92 oil pump (pulled from SDPC's web page).
$500+ for a Cam (not sure what a custom grind will run ya)
Tack on another $1000 or so for ARP bolts, engine assembly gaskets, and other neaded items...

Add you vehicle types oil pan and drop it into your engine bay (I'm not even going to try and guestimate the price for the install).

Okay back to the heads...
What is the Port size increased to with this CNC profile?

BlackHawk T/A

iTrader: (3)

I thought the L92 rocker arms were a 1.8 ratio?

cablebandit

iTrader: (37)

yes.[/QUOTE]


thanks for not biting my head off

Brian @ Texas Speed & Performance

iTrader: (1)

The $1499 price is for either vavle option. If you already have the heads, we can do the work for $1199. Give us a call or email us if you have any questions!

Brian

Jason 98 TA

iTrader: (4)

Brian's correct intro pricing will get you the upgraded stainless valves at no extra charge!!

Jason 98 TA

iTrader: (4)

I'll try to have several sets in stock both here & @ sdpc late next week!

LETHL_SS

iTrader: (21)

What cc options will be available?

fourplay

To Brian@ Texas Speed

Question: 1.) Will you offer L76 intake manifold with porting, if so how much. 2.) Throttle body porting and how much and finally how much for intire package if offered for all three L92 heads, L76 ported intake manifold with ported throttle body?

Last but not least I have a c6 z51 6sp. and plan on doing this combo. I will be useing the car as daily/weekend driver and for spirited driving. Present mods are Long tube headers with high flow cats, and Halltech cold air intake. Will any of the L92 head package be something that I can use? Oya almost forgot do you guys plan on selling cams for these combo's at different/future date?

Thanks ahead of time

Studytime

iTrader: (15)

Where are the CNC marks? Is that your master, and you're digitizing it?

Ben T.

SStrokerAce

iTrader: (2)

LS1/LS6= 3.900" bore CAN'T USE L92 HEADS
LS2 = 4.00" bore CAN USE L92 HEADS

It sure looks purdy, and that's what sells.

I'd love to say more in this thread but it gets edited

Bret

Cheatin' Chad

iTrader: (3)

The heads look very nice Jason and the flow numbers are definitely looking good.


If you would please consider:

Flowing exhaust with a 1 3/4 or 1 7/8 pipe. I know you can't directly compare flow numbers from bench to bench but it helps me "get in the ballpark" and gives an idea of what woudl happen in the real world.

Also:
Providing port size in CC and cross section.

Thank you!

WizeAss

iTrader: (5)

WHEN WILL YOU BE OFFERING A CAM FOR THESE HEADS AND A 408??

Dragaholic

iTrader: (180)

What's the benefit of the bigger valves option? Are the stainless any lighter/stronger than the stock valves? I thought the new spring kit you just recently offered supported .660" lift?

Jason 98 TA

iTrader: (4)

The new spring with some shimming will hold these valves for now. That being said I'm hard at work on a new valve spring that will change the ls valve spring world!!

dhdenney

iTrader: (53)

While we're talking valve springs here, are you going to have a solid roller spring upgrade on these heads or will it be done on a custom/one off basis? Added cost here?

GuitsBoy

iTrader: (4)

The heads look killer. I cant wait till some shops are putting out big number strokers with the new l92 heads and l76 intake. Some of the novice attempts have been plagued by hurdle after hurdle.

BlackHawk T/A

iTrader: (3)

Numbers look good, but the exhaust is still low. What kind of downfalls does that have?

If you run more duration on the exhaust you can make up for it, but how much? And surely in the end you don't have the exact same result.

Or is it not a big deal?

adams2003

What is the runner size on these heads?

Nate_Taufer

iTrader: (1)

runner size?

Nate