LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Some pics of my intake set up

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Old 07-29-2010, 07:11 PM
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*OH **** BENCH RACING*

Dude, there's been some bright people, doing some impressive things with LT1s for a long time. Tom Cowle did 11.48 with bolt ons and the factory manifold, and did a SLOWER 11.50 with a carb setup IIRC. You're gonna do 5-7 tenths better with a HR cam? And then pickup 13-15 tenths MORE on a 200 shot? Remember you're on a FACTORY bottom end, not a blueprinted "stock" setup that would be worth 20+hp alone. Single plane at that rpm and power level isn't worth **** on NA 350, but will help you out on the bottle. The cam is wrong for what you're trying to do, it'll peak at 6000-6200. The LSA is too wide to make power NA, and there's not enough duration to make the power you're looking for on the bottle (stock heads!)
Old 07-29-2010, 08:30 PM
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you have some funny bench racing there slick...but you fail at it bad..lol i know all the specs on toms car..i know tom left power on the table ive talked to tom a dozen times in pm's,..i think its really funny how you say a car with larger cam,race gas,more compression,better oil control,better intake,higher stall and is 200-250#s lighter wont run .5-.7 faster then tom..hahaha

i love how yall are stuck on the heads..**** is funny..i call them stock heads but ive already said i have to do some porting to them in here..but yall are so caught up in the words STOCK HEADS that yall keep on looking past it..haha

as for the cam being all wrong trust me it will work fine..part number is ch7..go ahead and call doug herbert and see what they say..heres the specs again.

RPM Range: 2700-6700Advertised Duration: 278/286Duration @ .050: 242/248Lift: .567/.585Lobe Center: 112c

oh the cam just came out a pump gas 350 that pulled to 7k..
Old 07-29-2010, 09:57 PM
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Originally Posted by suicidal racing
im only using a 750cfm carb and ill be around 700hp on juice..thats stock heads,stock long block,an comp cams nitrous 276 cam
Originally Posted by suicidal racing
...seeing its going on just reg non ported lt1 heads..i have to port match the heads to the intake though..intake takes a 1205 gasket stock..but really theres only .01 diff from the hight in the head ports to the intake port...
Originally Posted by suicidal racing
...looking for high 5s in the 8th...
Originally Posted by suicidal racing
...motor should make around 470hp n/a with stock heads...
Old 07-29-2010, 09:59 PM
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Originally Posted by suicidal racing
i love how yall are stuck on the heads..**** is funny..i call them stock heads but ive already said i have to do some porting to them in here...
Old 07-29-2010, 10:33 PM
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Must be going to run the Stealth Suicidal Stage III heads.
Old 07-29-2010, 11:09 PM
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That's that go fast secret squirrel ****..


Last edited by the_merv; 07-29-2010 at 11:14 PM.
Old 07-29-2010, 11:11 PM
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personally i could care less what someone does. all of its playing unless your getting paid for it, and most of us dont...

also i dont think a 350 lt1 on a 200hp shot will go in the 5's with stock heads or mildly ported stockers, stock bottom end.. 5's are pretty damned fast, i dont care who you are..

i built an s-10 for a customer years ago, 12:1,383, dart iron heads,850dbl pumper,4500 stall, tubbed, cage , yada, yada.. he was running 6.80s.. theres a huge a$$ difference in 6's and 5's..
Old 07-29-2010, 11:29 PM
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This is great reading.
Old 07-29-2010, 11:34 PM
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I don't understand how you can doubt someone running 5's if he's using a quality ebay valve spring kit on a 7000+ rpm motor.

https://ls1tech.com/forums/13636371-post38.html
Old 07-29-2010, 11:38 PM
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hahaha you high lighted something...i said reg non ported heads and the very next line not even 4 words into it i say i have to port match them for the intake right?

So right there tells you there not going to reg stock heads..ive also said nothing about doing a valve job to them or polishing the combustion chambers..

Remember valve job an polishing aint porting..lol so you see why i still call them stock heads now right? there not getting a full port but are getting some work an to me a port match aint porting really thats just cleaning a casting..

ive also said stock short block with 152k..dont mean i aint going to go threw it and put fresh **** in it...the stock parts will still have 152k worth of miles on them but the bearings and rings wont an she will have arp rod bolts and be internaly balanced..lol

it never pays to assume stuff.because you only make yourself look like the first 3 letters of what you did.

as for 5s in the 8th...the stock short block n2o record is 5.99/9.44..hes 3100#s..im using a lil more cam and will have about 30 more hp in juice and be 2900#s lighter

now its been fun but i got to get to work.
Old 07-29-2010, 11:41 PM
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Originally Posted by speed_demon24
I don't understand how you can doubt someone running 5's if he's using a quality ebay valve spring kit on a 7000+ rpm motor.

https://ls1tech.com/forums/13636371-post38.html
do you know thats what i have..do you work for that company and have a invoice with my name on it??? bet not..i said i would try them..**** i know a spring with retainer on speedway motors site that is for .600 lift cost 69$ for a set..bet you would **** yourself if you new how many circle track engines there in running 5800-7200 rpms lap after lap..

but wait that cant be legit right..there not a name brand so it cant be true..remember ive said it before..alot of what you pay for comes from outside maker then gets a diff companys name slapped on it and marked up 200% morrel lifters are some...haha again its been fun.
Old 07-30-2010, 12:24 AM
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congratulations... so is this suicidal racing's new shop car or what? gonna bring in tons of business and sponsors im sure
Old 07-30-2010, 12:27 AM
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Originally Posted by suicidal racing
do you know thats what i have..do you work for that company and have a invoice with my name on it??? bet not..i said i would try them..**** i know a spring with retainer on speedway motors site that is for .600 lift cost 69$ for a set..bet you would **** yourself if you new how many circle track engines there in running 5800-7200 rpms lap after lap..

but wait that cant be legit right..there not a name brand so it cant be true..remember ive said it before..alot of what you pay for comes from outside maker then gets a diff companys name slapped on it and marked up 200% morrel lifters are some...haha again its been fun.
They are doing the exact same thing unless you think they make all those springs and parts themselves The difference is they are using cheap *** parts with no R&D behind them.
Old 07-30-2010, 12:37 AM
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Originally Posted by suicidal racing
hahaha you high lighted something...i said reg non ported heads and the very next line not even 4 words into it i say i have to port match them for the intake right?

So right there tells you there not going to reg stock heads..ive also said nothing about doing a valve job to them or polishing the combustion chambers..

Remember valve job an polishing aint porting..lol so you see why i still call them stock heads now right? there not getting a full port but are getting some work an to me a port match aint porting really thats just cleaning a casting..

ive also said stock short block with 152k..dont mean i aint going to go threw it and put fresh **** in it...the stock parts will still have 152k worth of miles on them but the bearings and rings wont an she will have arp rod bolts and be internaly balanced..lol

it never pays to assume stuff.because you only make yourself look like the first 3 letters of what you did.

as for 5s in the 8th...the stock short block n2o record is 5.99/9.44..hes 3100#s..im using a lil more cam and will have about 30 more hp in juice and be 2900#s lighter

now its been fun but i got to get to work.
Stock means the way it left the factory... If you modify it isn't stock anymore.
Old 07-30-2010, 01:11 AM
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ok time for some.....
TIME SLIPS
Old 07-30-2010, 05:46 AM
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Originally Posted by speed_demon24
Stock means the way it left the factory... If you modify it isn't stock anymore.
yeah i know that but stock is thrown around very loosely now a days..but i do agree with you..

but you see people say all the time i have stock heads when running after market springs,guide plates,retainers,seals an so forth in them..but there stock..

Its like alot of porters doing stage 1,2 or 3 heads now a days an calling them ported where stage 1 is just a damn valve job an thats it,stage 2 is a valve job and cleaned up casting with a gasket match..lol

An yes i know what alot of companys do and how alot of them out source ****...my point with saying morrel lifters was that alot dont know you cant by them from morrel them selfs you have to get them from herbert,lunati an others but they are sold with not the morrel name on them but others..

its like trick flow and summit..same **** just not paying for the name..theres a ton of **** in the after market world like that but alot dont think so..alot go oh that has to be junk because thats not name brand an it cost less...when the **** is the exact same just put in a different box during packaging.



As to you wicked..you can go ahead and get a sponcer or try..ill pass on that i aint class racing
Old 07-30-2010, 07:29 AM
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you're exactly right... you're not class racing. so why brag on the internet about your "stock" **** thats going to run faster than 9.40s? who gives a **** comes to mind..... until you get your slip.
Old 07-30-2010, 08:15 AM
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Originally Posted by suicidal racing
as for gizmo's car im talking about the build he did with the kids went them numbers..7.05 and 11.0s.
True on the 7.05, but we have not been down the quarter with the car. Last night we ran 7.37 in 4000 DA.


i can link that thread in here if you want..there using stock cam,oil restricters in the valley to stop cam windage,stock pan,ls7 lifters
Also true, except we are running GMPP "race" hydraulic lifters.


,roller rockers an are running a f.a.s.t deal with no accessories also..
Stock rockers, Accell DFI, and we are still running an alternator.


other then that i believe there around 10.8-1 comp..there using a impala gasket.
We are running stock .049 head gaskets not the Impala gaskets.


an i think the car is 3100#s..i cant remember if there on race gas or 93 though..more then likely race.
The weight is about right depending on who's in the car. We are running VP C-11.


I don't want in this argument, but I thought that I would at least straighten this part out!
Old 07-30-2010, 08:17 AM
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Originally Posted by Wicked94Z
The stock eliminator guys have a valve job that probably costs more than your whole motor to make the power they do so....
Not this guy!
Old 07-30-2010, 12:50 PM
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thanks for the info gizmo..i was going off memory from the build thread i read about 3 or 4 months ago.

an wicked i just said my expectations..dont mean it will run that..i dont know why yall are so worried about what im doing..worry about yalls cars



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