98Z28CobraKiller

iTrader: (17)

Damn, those dyno pulls beat the snot out of the AFR225/FAST90 combo!

I would have thought that with that mild of a cam, the CNC AFR 225's would have been as good or slightly better.

2k2blkss

Looks like a great package, definately interested!!! What about offering upgraded valve springs for guys that want to run higher lift cams like LSK lobes etc... Anything in the works for something like that, thanks?

amwellls1

I will be waiting for some results

SLPPower

iTrader: (1)

Right now we are only offereing the heads with the comp 918 springs. I promise you if we get enough interest we will offer a head with a dual Manley valve springs for the more aggresive camshafts. The spring package is set to go, we are just waiting for the initial repsonse from our customers to see if they want or need a dual valve spring.

Thanks
Hank

sierrac3_s2000

iTrader: (6)

Have you guys thought of offering this package with the truck intake for us truck guys? I have a 2005 Sierra Denali that is beggin for heads and a cam!!

TNTramair

iTrader: (15)

L76 is a truck manifold...unless im missing something in your question.

TNTramair

iTrader: (15)

Hank,

the part number for that bracket does not come up on your website...do we need to call it in or can you fix it so it can be ordered online?? thanx

Stang's Bane

iTrader: (22)

L76 is the aussie car manifold. L92 is the truck one.

SLPPower

iTrader: (1)

You can not use the L92 heads with a LQ9 or LQ4 6.0L intake manifold as they have the cathedral ports. (I hope this answers your question about the intake manifold?)

We are working on a full L92 head and manifold kit for the silverado/sierra/suv truck guys. Keep your eye on the new products page in the next 2 months for all of that info.

The L76 bracket for the cable throttle body will not be available until the 2nd of April to purchase as we are building stock. But, I will get with sales and marketing to see if we can get it up on the web before then for those who want to pre-order.

Thanks
Hank

TNTramair

iTrader: (15)

gotcha

sierrac3_s2000

iTrader: (6)

Thats what I wanted to hear. Thanks.

BIG BAD BLACKSS

iTrader: (4)

If i wanted to stay at the 72cc chamber size could you just not mill the heads? Im looking for a 72cc or very close chamber for a forcd induction setup. Do you think these will live with a procharger pushing 15lbs? Also any way i can get the kit without the injectors? Already have some 60s for it.

Stang's Bane

iTrader: (22)

Stock chamber on L92 is 70.2, I believe.

gollum

iTrader: (1)

SLPPower

iTrader: (1)

We can offer the head not decked, we have not worked up pricing or a part number yet, but we can easily do that. Give me a week and I will have the 2 new P/Ns for you with pricing. (one with the bracket and adapters one kit without)

The kit comes with the assembled manifold and injectors, sorry to say but no we will not offer the kit without the injectors.

We have not completed any boosted testing yet, but these heads are of the same quality as the LS1/LS2 heads, I do not see why running 15lbs of boost will be a problem.

ONE CORRECTION FOR EVERYONE:
Over the past few days we have found that GM is now supplying to us any of the current 2 different L92 castings. One has a rough chamber one has a smooth chamber. The difference is in the tooling GM is using. Because of this ALL of the SLP L92 Heads will have the chamber CNC smoothed making sure all of our customers get exactly the same results as all of our testing. Leaving the same shape and 64 cc, just making every head chamber the same no matter what casting GM supplies us. Not a huge change by any means just want you all to know. There is no cost increase because of this process.

Thanks again,
Hank

SLPPower

iTrader: (1)

Some more results of the SLP L92 Heads with our new L92 Camshaft. P/N 51016

http://www.slponline.com/coming_soon_51016.asp

Results on the page above will be typical of installing on a C5, C6, GTO, F-body.

----
For all you truck guys we have all results with the SLP AFR Heads, LQ9 Manifold, Full CAT Stock GM Y-Pipe and SLP GM Truck/SUV Powerflo exhaust. Please PM me and I can send you the dyno graphs and numbers.

Thanks
Hank

BLAKE 01 WS6

iTrader: (1)

did i see head bolts in there too?

ChevyThunder17

iTrader: (48)

The head bolts, head gaskets, and valve cover gaskets are part of the installation kit (Part number 12507), which is $149.95.

streetcar540

I think this combo will be good for my project, although i need a cam recommendation. heres what i'm building.....6.0L stock Lq4, install your L92 head/intake combo. I know that i should use better lifters and pushrods, right? ARP fasteners on the rods also, I know comp makes a 571/573 lift and 228/230 dur @ .050 cam.....but is this the right choice for a protouring mainly street driven 68 camaro? do you guys have something better suited to this application. just a stock 364 cube Lq4 and 4L60e auto trans. I will probably be needing a custom wiring harness and reprogramed computer for it since it's a retrofit. any ideas?

SLPPower

iTrader: (1)

I would suggest you go with our new 51016 cam. It has a great idle and makes great torque for the street. See results below.

http://www.slponline.com/coming_soon_51016.asp

Using the stock GM lifters will be fine. Yes upgrading to hardened pushrods is recommended. ARP fasteners are a nice upgrade but not necessary.

If you would like us to tune the car when you are finished with the build we would be more then happy to for you.

Thanks
Hank