Cam / LT1 how big ?
Thread Starter
Pro
Joined: May 2006
Posts: 536
Likes: 0
From: Humble Texas
Cam / LT1 how big ?
96 LT1
Heads are off gettin some work,and installing LT 1 5/8 headers i want to put a cam in...
Now as a DD with all the luxury's ,and stock heads (for now)How big a cam will work with a/c and power brakes?
Heads are off gettin some work,and installing LT 1 5/8 headers i want to put a cam in...
Now as a DD with all the luxury's ,and stock heads (for now)How big a cam will work with a/c and power brakes?
Race Director
Joined: Apr 2000
Posts: 15,344
Likes: 4,009
From: Texas
You need to figure out what valve springs you're going to use as well. The stock ones aren't even safe to use with the LT4 HOT Cam which is 218/228 @ .050 and .525/.525 lift.
FWIW, my cam is 230/236 @ .050, .622/.624 lift and could easily be driven every day. My A/C and power brakes work perfectly.
Racer
Joined: May 2005
Posts: 497
Likes: 1
From: Casa Grande Az
Not sure if its legal to link to another forum but i'll give it a try.
http://www.ls1tech.com/forums/lt1-lt...ion-guide.html
Lots of good info.
I currently have a CC305 getting ready to go into a 355.
http://www.ls1tech.com/forums/lt1-lt...ion-guide.html
Lots of good info.
I currently have a CC305 getting ready to go into a 355.
Thread Starter
Pro
Joined: May 2006
Posts: 536
Likes: 0
From: Humble Texas
You need to define power goals and future mods. Just putting a big cam may get you nothing.
You need to figure out what valve springs you're going to use as well. The stock ones aren't even safe to use with the LT4 HOT Cam which is 218/228 @ .050 and .525/.525 lift.
FWIW, my cam is 230/236 @ .050, .622/.624 lift and could easily be driven every day. My A/C and power brakes work perfectly.
You need to figure out what valve springs you're going to use as well. The stock ones aren't even safe to use with the LT4 HOT Cam which is 218/228 @ .050 and .525/.525 lift.
FWIW, my cam is 230/236 @ .050, .622/.624 lift and could easily be driven every day. My A/C and power brakes work perfectly.
Le Mans Master
Joined: Apr 2000
Posts: 5,713
Likes: 105
From: Manassas VA
IMO the hotcam is an excellent choice especially if you are not reworking the bottom end.
I would not try to spin the stock bottom end above 6200-6300 rpms if you want it to stay together and with a bigger cam, you are going to be temped to do that and may very well have to to make more power then the hotcam will give you.
Myself and a few others have ran in the mid to high 11's with the hotcam, and to be honest, im not seeing any better on a stock bottom end motor.
It can be tuned to pass emissions and the price cant be beat!!
I would not try to spin the stock bottom end above 6200-6300 rpms if you want it to stay together and with a bigger cam, you are going to be temped to do that and may very well have to to make more power then the hotcam will give you.
Myself and a few others have ran in the mid to high 11's with the hotcam, and to be honest, im not seeing any better on a stock bottom end motor.
It can be tuned to pass emissions and the price cant be beat!!
Le Mans Master
Joined: Apr 2000
Posts: 5,713
Likes: 105
From: Manassas VA
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Team Owner
Joined: Oct 2007
Posts: 26,745
Likes: 694
From: PA
I thought the hot cam was only .525 if you changed the stock rocker arms.
I was under the impression that in order to get that lift in the LT1 you had to upgrade the rockers. Also, that is pretty "cheap" on GMs part if a stock spring wont take .525 lift.
I was under the impression that in order to get that lift in the LT1 you had to upgrade the rockers. Also, that is pretty "cheap" on GMs part if a stock spring wont take .525 lift.
Melting Slicks
Joined: Mar 2004
Posts: 2,141
Likes: 2
From: Pittsburgh Pa
Melting Slicks
Joined: Mar 2004
Posts: 2,141
Likes: 2
From: Pittsburgh Pa
well considering stock is .450 lift i am thinking .525 is quite a stretch.
Thread Starter
Pro
Joined: May 2006
Posts: 536
Likes: 0
From: Humble Texas
Not sure if its legal to link to another forum but i'll give it a try.
http://www.ls1tech.com/forums/lt1-lt...ion-guide.html
Lots of good info.
I currently have a CC305 getting ready to go into a 355.
http://www.ls1tech.com/forums/lt1-lt...ion-guide.html
Lots of good info.
I currently have a CC305 getting ready to go into a 355.
Thread Starter
Pro
Joined: May 2006
Posts: 536
Likes: 0
From: Humble Texas
IMO the hotcam is an excellent choice especially if you are not reworking the bottom end.
I would not try to spin the stock bottom end above 6200-6300 rpms if you want it to stay together and with a bigger cam, you are going to be temped to do that and may very well have to to make more power then the hotcam will give you.
Myself and a few others have ran in the mid to high 11's with the hotcam, and to be honest, im not seeing any better on a stock bottom end motor.
It can be tuned to pass emissions and the price cant be beat!!
I would not try to spin the stock bottom end above 6200-6300 rpms if you want it to stay together and with a bigger cam, you are going to be temped to do that and may very well have to to make more power then the hotcam will give you.
Myself and a few others have ran in the mid to high 11's with the hotcam, and to be honest, im not seeing any better on a stock bottom end motor.
It can be tuned to pass emissions and the price cant be beat!!
Race Director
Joined: Jan 2005
Posts: 10,641
Likes: 13
From: Slidell Louisiana
Just kidding
http://www.summitracing.com/parts/NAL-12480002
I have a 355 and went with a 23x 23x on a 110LSA with .615 lift
My oldest daughter used to drive it to high school every now and again. before she graduated so it is extremely streetable and reliable. Now some of the other parts are not so durable behind it (torque converters, tranny etc) but engine has been SOLID.
Mike
Last edited by aboatguy; Oct 7, 2009 at 08:15 PM.
Le Mans Master
Joined: Apr 2000
Posts: 5,713
Likes: 105
From: Manassas VA
It is a factory cam, but was not built for production use. It was designed for the LT4 for racing. It was not designed to pass emissions etc, but with tuning it will.
Le Mans Master
Joined: Apr 2000
Posts: 5,713
Likes: 105
From: Manassas VA
Le Mans Master
Joined: Oct 2004
Posts: 7,706
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From: Everett WA
C4 of Year Finalist (appearance mods) 2019
