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View Full Version : Silverado SS L92 H/C-Budget build


OnyxSSS
04-25-2008, 12:50 PM
I am going thru another set of mods. I wanted to make a post to help others and show off a bit J I am going to have three sections.

I:The parts

II: The install

III: The results

This post people can follow along and learn as I do my first head swap and my second cam. A key in this was budget, I wanted to run a turbo but w/o a job I was scraping by. I got a great deal on the intake and some misc suff so I decided to give it a try. Another reason for the super long post is how I found so little info in this upgrade and wanted to share.

I: The parts

http://i2.photobucket.com/albums/y26/Detroitallroad/Silveradoss/april2008111.jpg

http://i2.photobucket.com/albums/y26/Detroitallroad/Silveradoss/april2008108.jpg

L92 assembled heads. I am using the stock valves and not pushing the lift too high to put unneeded stress on the valves.

Comp 918 Springs (new version): I got these as replacements for the blue striped ones I had. So I decided to use them.

http://i2.photobucket.com/albums/y26/Detroitallroad/Silveradoss/april2008167.jpg

L92 Truck intake/90mm Throttle body: This was one of the cheap parts and just comparing them I know its better than stock.

L92 Fuel rails: These are returnless rails so I had to mod them a little.

Marine 42lbs injectors: I am using these so I cont have to mod the fuel rail and can still have the added fuel I will need. I swapped the o-rings from the L92 truck injectors. This also keeps me from changing the injector ends, I don't want any electrical gremlins.

Vette fuel Filter/Regulator: this was added so I can run the returnless rails. I did not want to cut up my stock fuel lines and AN fittings are not cheap. I hope this way I can just get some programming changes to compensate for the fuel being regulated by the atmosphere instead of by vacuum. Here you can see how I mounted it to the rail and had to bend the supply up a bit.

http://i2.photobucket.com/albums/y26/Detroitallroad/Silveradoss/april2008165.jpg

Stock GEN IV rocker arms: While I could have used ½ of my stock ones I have the complete set off the L92 heads.

Stock 6.2/6.0 GM MLS head gaskets: these are a nice looking gasket and the cost fit the budget.

Stock GM TTY head bolts: I could not see spending the extra $$ for ARP studs, I hope I wont have to change these heads again

Stock crank bolt: This is a TTY bolt so I just got a new one

X-link: this allows me to use the new throttle body and its plug and play. Very nice piece and I can keep away from cutting wires. Here you can see the x-link mounted.
http://i2.photobucket.com/albums/y26/Detroitallroad/Silveradoss/april20011.jpg
http://i2.photobucket.com/albums/y26/Detroitallroad/Silveradoss/april20012.jpg

Here is my 2/3 of my son's and my cam selections...
http://i2.photobucket.com/albums/y26/Detroitallroad/Silveradoss/april2008171.jpg

Livernois Stage I cam: 224/230 .581/.590 114 LSA. I chose this cam after a lot of searching with very little help. L92 cams are top secret and people want to sell their grinds and with every search I found more bs. Livernois is local to me and I figured I could talk to some one and it might make me feel better about going that route. Worst case is I pull it and try a third cam. A lot of my reading said that smaller cams made similar power with better drivability. This by far was my hardest decision and I still am not completely sold but so few people are doing L92's on heavy AWD trucks so in some ways I hope to break some new ground or at least add some info to the discussion.

OBX LT headers: I have wanted headers for a while, and these are SS which IMO makes them a great deal. After looking them over all I can say is they look top notch, the welds are perfect. I will live with the driver's side hump.

07 E fans: I got these with my other L92 parts and figured it would help with space, Again I have read some issues with surging and e-fans but I think I'll give them a shot other have them without issue.

Nelson Fan harness: Thanks to Cody (montanaSS) for getting me his, While I was going to make one I am not looking for electrical problems and hopefully this will go in easy.

II: The Install

Next week (waiting for the cam)

Golden
04-26-2008, 07:49 PM
Very interested! What kind of numbers will this put out?

char
04-26-2008, 08:08 PM
i have a 90 ss454, love the new ss man they are good looking truck, im intersted how she performs as well.

BIGCOWL-IMP
04-27-2008, 02:01 PM
Vary cool project and vary nice write up and i love the big letters:) But wheres the pics ?
P.S.Any interest in a 6.2l short block ? Might be getting another one soon.

dave89iroc
04-27-2008, 04:16 PM
X-link: this allows me to use the new throttle body and its plug and play. Very nice piece and I can keep away from cutting wires.


more info please?

OnyxSSS
04-27-2008, 05:49 PM
X-link: this allows me to use the new throttle body and its plug and play. Very nice piece and I can keep away from cutting wires.
more info please?

http://www.torquerush.com/index.html
it is an adapter from the old 8 wire DBW throttlebody to the newer 6 wire one. 2003 DBW had a 3 bolt throttle body and the newer ones are 4 bolts and 90mm opposed to the 78mm one I had.
check out the site and see if the pics help.

dave89iroc
04-27-2008, 06:22 PM
http://www.torquerush.com/index.html
it is an adapter from the old 8 wire DBW throttlebody to the newer 6 wire one. 2003 DBW had a 3 bolt throttle body and the newer ones are 4 bolts and 90mm opposed to the 78mm one I had.
check out the site and see if the pics help.

perfect, thanks

OnyxSSS
06-03-2008, 10:44 PM
The Install:
I have done some wrenching in my days but not on my baby. I swapped the cam and have done some repair work on a lot of other cars/trucks. I was following the LS1howto.com directions but they are not too accurate for a truck.

http://i2.photobucket.com/albums/y26/Detroitallroad/Silveradoss/skiingbreckjoeSS125.jpg
http://i2.photobucket.com/albums/y26/Detroitallroad/Silveradoss/skiingbreckjoeSS128.jpg
http://i2.photobucket.com/albums/y26/Detroitallroad/Silveradoss/skiingbreckjoeSS131.jpg
http://i2.photobucket.com/albums/y26/Detroitallroad/Silveradoss/skiingbreckjoeSS132.jpg
http://i2.photobucket.com/albums/y26/Detroitallroad/Silveradoss/skiingbreckjoeSS133.jpg
http://i2.photobucket.com/albums/y26/Detroitallroad/Silveradoss/skiingbreckjoeSS135.jpg
http://i2.photobucket.com/albums/y26/Detroitallroad/Silveradoss/skiingbreckjoeSS144.jpg
http://i2.photobucket.com/albums/y26/Detroitallroad/Silveradoss/skiingbreckjoeSS146.jpg
http://i2.photobucket.com/albums/y26/Detroitallroad/Silveradoss/skiingbreckjoeSS152.jpg
http://i2.photobucket.com/albums/y26/Detroitallroad/Silveradoss/skiingbreckjoeSS151.jpg
New xlink bracket
http://i2.photobucket.com/albums/y26/Detroitallroad/Silveradoss/skiingbreckjoeSS164.jpg
Stock intake tube
http://i2.photobucket.com/albums/y26/Detroitallroad/Silveradoss/skiingbreckjoeSS162.jpg
The new intake tube which caused the relocation of the xlink
http://i2.photobucket.com/albums/y26/Detroitallroad/Silveradoss/skiingbreckjoeSS165.jpg
http://i2.photobucket.com/albums/y26/Detroitallroad/Silveradoss/skiingbreckjoeSS167.jpg
http://i2.photobucket.com/albums/y26/Detroitallroad/Silveradoss/skiingbreckjoeSS168.jpg

OnyxSSS
06-11-2008, 07:12 PM
http://px2.sfstatic.com/handlers/GetSizedVideoThumb.ashx?id=165750&w=120 (http://videos.streetfire.net/video/SIlverado-SS-L92-LT-COrsa_165750.htm?ref=a1a0bceb-c5f7-4eeb-af28-9943009f2471)SIlverado SS L92 LT COrsa Sport (http://videos.streetfire.net/video/SIlverado-SS-L92-LT-COrsa_165750.htm?ref=a1a0bceb-c5f7-4eeb-af28-9943009f2471)

99SaleenSpeedster
06-11-2008, 08:15 PM
Sounds great!!! How's it run?

-Rick

OnyxSSS
06-11-2008, 10:19 PM
runs strong, still getting used to the long tubes. I need some track time to dial in the tune and see how she goes but SOTP is saying this thing hauls the mail for sure! The exhaust kills the sleeper factor but I still like the factory look of it.