The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain > LSx Swaps

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 12-02-2010, 02:28 AM   #26
harnalien
TruckincrazY
 
harnalien's Avatar
 
Join Date: May 2004
Location: Haslet, TX
Posts: 493
Re: Please help me get started!

I think I'll call Comp Cams and Texas Speed tomorrow to see what they suggest. I saw this one. http://www.summitracing.com/parts/CCA-54-418-11/. It has the 112 LSA so that should be nice and choppy. I think I want this thing to be a beast. The only thing, I noticed the operating range is 2000-6800. The other one was 1300-6300. I don't know if that means I'll have to keep it revved to get power or not. Another thing I'm wondering about is vacuum due to the power brakes. I don't know how much I need to keep brakes operable. Probably a dumb quesiton. I'm getting more excited because I think this is actually gonna happen. The shop is making it seem like it's not that big a deal to hook me up.
harnalien is offline   Reply With Quote
Old 12-03-2010, 11:13 AM   #27
BR3W CITY
meowMEOWmeowMEOW
 
BR3W CITY's Avatar
 
Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
Re: Please help me get started!

you can run a vacuum cannister, or hydroboost if you think you won't be getting enough vac for the brakes.
__________________
'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING

MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD
BR3W CITY is offline   Reply With Quote
Old 12-03-2010, 12:26 PM   #28
swb85
On a budget like Fred Sanford
 
swb85's Avatar
 
Join Date: Oct 2005
Location: Topeka, KS
Posts: 2,031
Re: Please help me get started!

You shouldn't need a vac canister or have to worry about power brakes with your plans. I run a waaaay bigger cam in a 370ci LSx (30* of overlap @.050") and don't have any problems with the factory vac assisted brakes.
__________________
'85 Silverado swb: 383 stroker, 10.5:1, vortec heads, 232/238 roller cam, RPM air gap, performer 750 carb, stainless longtubes, 3" duals/super 44's, T56/4.11 383ci build / exterior refresh thread
'98 Camaro z28: 370ci twin turbo 370ci build
'01 Tahoe LT 4x4: 5.3, longtubes/ory, magnaflow duals, custom tune....wife's DD
swb85 is offline   Reply With Quote
Old 12-04-2010, 09:01 AM   #29
harnalien
TruckincrazY
 
harnalien's Avatar
 
Join Date: May 2004
Location: Haslet, TX
Posts: 493
Re: Please help me get started!

Quote:
Originally Posted by swb85 View Post
You shouldn't need a vac canister or have to worry about power brakes with your plans. I run a waaaay bigger cam in a 370ci LSx (30* of overlap @.050") and don't have any problems with the factory vac assisted brakes.
That's good to know. I'm trying to keep this as straightforward as I can and don't want to do a bunch of extra stuff if I don't have to. The shop told me I can use my stock radiator and add some electric fans. I am also trying to find info on using the compressor in the stock location, but I can't find it. I know I've seen it somewhere.
Posted via Mobile Device
harnalien is offline   Reply With Quote
Old 12-07-2010, 12:54 AM   #30
harnalien
TruckincrazY
 
harnalien's Avatar
 
Join Date: May 2004
Location: Haslet, TX
Posts: 493
Re: Please help me get started!

Well Comp Cams got back to me today and recommended the following from their LSr series:

LS1 Camshaft - Hyd. Roller - 1500-6700rpm - Adv. Dur. 269 Int./277 Exh. - Valve Lift .607 Int./.614 Exh. - Lobe Angle 112 deg. - Competition Cams Part Number 54-456-11

I must say, that is much bigger than I thought they would suggest. This seems like it will be a pretty nasty cam. The thing I worry about is piston to valve clearance with this big of a cam. This will also increase the budget due to having to get dual springs or high dollar beehives. What are some solutions if there is piston to valve issues? I may have to keep looking if this cam makes me have to do a bunch of other stuff to make it work. Anyone have any thoughts?
harnalien is offline   Reply With Quote
Old 12-07-2010, 02:09 AM   #31
68GMCCustom
Truck and auto performance nut
 
68GMCCustom's Avatar
 
Join Date: Feb 2007
Location: McKinney,Texas
Posts: 3,848
Re: Please help me get started!

pretty close to mine...

I forget the adv. duration (272/281?).....but its 223/231 @ .050 .610/.617 lift 112 LSA
__________________
Kurt -

'68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy
'72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close
'06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD
'18 Kia Sorento - wife's econo-driver
'95 Chevy S10 - reg cab shortbed, LS, 4.3, auto...

my '68's powertrain and chassis build -links broken
A surprise phase - carb to efi -links broken

Last edited by 68GMCCustom; 12-07-2010 at 02:11 AM.
68GMCCustom is offline   Reply With Quote
Old 12-07-2010, 11:19 AM   #32
swb85
On a budget like Fred Sanford
 
swb85's Avatar
 
Join Date: Oct 2005
Location: Topeka, KS
Posts: 2,031
Re: Please help me get started!

Quote:
Originally Posted by harnalien View Post
Well Comp Cams got back to me today and recommended the following from their LSr series:

LS1 Camshaft - Hyd. Roller - 1500-6700rpm - Adv. Dur. 269 Int./277 Exh. - Valve Lift .607 Int./.614 Exh. - Lobe Angle 112 deg. - Competition Cams Part Number 54-456-11

I must say, that is much bigger than I thought they would suggest. This seems like it will be a pretty nasty cam. The thing I worry about is piston to valve clearance with this big of a cam. This will also increase the budget due to having to get dual springs or high dollar beehives. What are some solutions if there is piston to valve issues? I may have to keep looking if this cam makes me have to do a bunch of other stuff to make it work. Anyone have any thoughts?
That's not a very big cam AT ALL, actually just about the same specs @ .050" as GM's hotcam. You won't be anywhere near P/V clearance issues, and it'll have a mild chop at idle with great torque production.
__________________
'85 Silverado swb: 383 stroker, 10.5:1, vortec heads, 232/238 roller cam, RPM air gap, performer 750 carb, stainless longtubes, 3" duals/super 44's, T56/4.11 383ci build / exterior refresh thread
'98 Camaro z28: 370ci twin turbo 370ci build
'01 Tahoe LT 4x4: 5.3, longtubes/ory, magnaflow duals, custom tune....wife's DD
swb85 is offline   Reply With Quote
Old 12-07-2010, 12:47 PM   #33
harnalien
TruckincrazY
 
harnalien's Avatar
 
Join Date: May 2004
Location: Haslet, TX
Posts: 493
Re: Please help me get started!

Quote:
Originally Posted by swb85 View Post
That's not a very big cam AT ALL, actually just about the same specs @ .050" as GM's hotcam. You won't be anywhere near P/V clearance issues, and it'll have a mild chop at idle with great torque production.
Awesome! I guess I am thinking of it being big for a 350 cam. I like the numbers on this cam and the springs will be about 100 more than what I was gonna get. Thanks!
Posted via Mobile Device
harnalien is offline   Reply With Quote
Old 12-08-2010, 12:35 AM   #34
Puglia10
Registered User
 
Join Date: Apr 2009
Location: Boston MA
Posts: 389
Re: Please help me get started!

do you want/need to upgrade your stall convertor?
__________________
1979 c30 3+3 dually
1946 GMC
Puglia10 is offline   Reply With Quote
Old 12-08-2010, 01:23 AM   #35
68GMCCustom
Truck and auto performance nut
 
68GMCCustom's Avatar
 
Join Date: Feb 2007
Location: McKinney,Texas
Posts: 3,848
Re: Please help me get started!

there's a bit more lift there then the GM hot cam......
__________________
Kurt -

'68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy
'72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close
'06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD
'18 Kia Sorento - wife's econo-driver
'95 Chevy S10 - reg cab shortbed, LS, 4.3, auto...

my '68's powertrain and chassis build -links broken
A surprise phase - carb to efi -links broken
68GMCCustom is offline   Reply With Quote
Old 12-08-2010, 04:12 AM   #36
Mr. 250r
Registered User
 
Mr. 250r's Avatar
 
Join Date: Dec 2010
Location: freeburg, illinois
Posts: 885
Re: Please help me get started!

Im not sure if you picked mounts yet but like someone else said dirty dingo has a good reputation, I've been looking to do this swap myself except with 04 gto ls1 and a few good companies for wiring are currentperformance, speartech, nelson just make sure to research the companies you pick see what people say about them.

I don't know what engine your picking some ls are a little different on the accessories but for some relocation brackets in case you find out something won't fit try http://www.kwikperf.com/index.html
Mr. 250r is offline   Reply With Quote
Old 12-08-2010, 04:15 PM   #37
swb85
On a budget like Fred Sanford
 
swb85's Avatar
 
Join Date: Oct 2005
Location: Topeka, KS
Posts: 2,031
Re: Please help me get started!

Quote:
Originally Posted by 68GMCCustom View Post
there's a bit more lift there then the GM hot cam......
Absolutely.....but gross lift has absolutely nothing to do with how a cam "behaves".
__________________
'85 Silverado swb: 383 stroker, 10.5:1, vortec heads, 232/238 roller cam, RPM air gap, performer 750 carb, stainless longtubes, 3" duals/super 44's, T56/4.11 383ci build / exterior refresh thread
'98 Camaro z28: 370ci twin turbo 370ci build
'01 Tahoe LT 4x4: 5.3, longtubes/ory, magnaflow duals, custom tune....wife's DD
swb85 is offline   Reply With Quote
Old 12-08-2010, 05:47 PM   #38
harnalien
TruckincrazY
 
harnalien's Avatar
 
Join Date: May 2004
Location: Haslet, TX
Posts: 493
Re: Please help me get started!

Quote:
Originally Posted by Puglia10 View Post
do you want/need to upgrade your stall convertor?
I don't think I'll have to upgrade the stall converter and I really don't want to. I just got this tranny from Phoenix transmissions in July, so I don't want to mess with it.

Quote:
Originally Posted by Mr. 250r View Post
Im not sure if you picked mounts yet but like someone else said dirty dingo has a good reputation, I've been looking to do this swap myself except with 04 gto ls1 and a few good companies for wiring are currentperformance, speartech, nelson just make sure to research the companies you pick see what people say about them.

I don't know what engine your picking some ls are a little different on the accessories but for some relocation brackets in case you find out something won't fit try http://www.kwikperf.com/index.html
I was gonna get the dirty dingo mounts for their flexibility. They are also only about 30 bucks more than the transdapt. I am going to drop the engine in without ac at first, but when i can, i will add the kwik peformance bracket and sanden compressor. i am still debating the wiring options. it really depends on whether i get the engine with everything. if i do, i can save some money by going with one of the mail order tuners. i was thinking of the painless kit, but i like the idea of working with a stock computer so that if i need to go to the local speedshop, they will be able to work on it.
harnalien is offline   Reply With Quote
Old 12-25-2010, 04:53 PM   #39
harnalien
TruckincrazY
 
harnalien's Avatar
 
Join Date: May 2004
Location: Haslet, TX
Posts: 493
Re: Please help me get started!

Holy crap, my wife bought me the camshaft for Christmas!!!

So it begins!!
harnalien is offline   Reply With Quote
Old 12-26-2010, 02:21 PM   #40
68GMCCustom
Truck and auto performance nut
 
68GMCCustom's Avatar
 
Join Date: Feb 2007
Location: McKinney,Texas
Posts: 3,848
Re: Please help me get started!

thats a good woman you got there!
__________________
Kurt -

'68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy
'72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close
'06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD
'18 Kia Sorento - wife's econo-driver
'95 Chevy S10 - reg cab shortbed, LS, 4.3, auto...

my '68's powertrain and chassis build -links broken
A surprise phase - carb to efi -links broken
68GMCCustom is offline   Reply With Quote
Old 12-26-2010, 04:13 PM   #41
85burb
Registered User
 
85burb's Avatar
 
Join Date: Dec 2009
Location: lindale,tx
Posts: 2,373
Re: Please help me get started!

Quote:
Originally Posted by harnalien View Post
Holy crap, my wife bought me the camshaft for Christmas!!!

So it begins!!
Thats a keeper right there. Mine did same thing but i got it few months ago. Was also my birthday gift.
__________________
82 c10 5.3/4l60
84 c20 5.3/sm465
85 chevy k10 suburban LQ4/4l60
91 chevy c10 suburban Lsa 5.3/4l60
2017 Silverado whipple 5.3
1964 Vw beetle
1974 vw beetle
85burb is offline   Reply With Quote
Old 02-01-2011, 12:24 AM   #42
harnalien
TruckincrazY
 
harnalien's Avatar
 
Join Date: May 2004
Location: Haslet, TX
Posts: 493
Re: Please help me get started!

Well I got my engine today! It's an '04. I got a DBC throttle intake to go with it. I also got a computer for an '02 engine. I have started narrowing down where to get the wiring harnesses. I am trying to decide whether to go with a painless kit or PSIconversions. Any opinions?
__________________
My build thread - '84 2wd w/ a 6.0 swap
http://67-72chevytrucks.com/vboard/s...d.php?t=433595
harnalien is offline   Reply With Quote
Old 02-01-2011, 12:51 AM   #43
85burb
Registered User
 
85burb's Avatar
 
Join Date: Dec 2009
Location: lindale,tx
Posts: 2,373
Re: Please help me get started!

Have you looked at the holley kit. Just seen it on tv last week end. Pretty sure it is a plug and play type. I want to say it is about a grand. But only has like 4 wires to hook up. Congrats on the motor.
__________________
82 c10 5.3/4l60
84 c20 5.3/sm465
85 chevy k10 suburban LQ4/4l60
91 chevy c10 suburban Lsa 5.3/4l60
2017 Silverado whipple 5.3
1964 Vw beetle
1974 vw beetle
85burb is offline   Reply With Quote
Old 02-01-2011, 10:18 AM   #44
Clyde65
1965 Chevy C10, 2005 4.8L/4l60
 
Clyde65's Avatar
 
Join Date: Aug 2004
Location: DFW Texas
Posts: 8,546
Re: Please help me get started!

are you keeping the FI? if so, check out TechRods and also PSI Conversion for your harness.
http://www.lt1conversion.com/products.php
http://www.techrods.com/
__________________
Clyde65

Rebuild of Clyde
http://67-72chevytrucks.com/vboard/s...84#post8338184

69 Aristocrat Lo Liner build
http://67-72chevytrucks.com/vboard/s...84#post7561684



support our troops!
Clyde65 is offline   Reply With Quote
Old 02-01-2011, 03:00 PM   #45
harnalien
TruckincrazY
 
harnalien's Avatar
 
Join Date: May 2004
Location: Haslet, TX
Posts: 493
Re: Please help me get started!

Yeah I'm keeping it fuel injection. I was thinking about the Painless kit because they do free computer flashing when you buy one of their harnesses. I like the PSI prices though.
__________________
My build thread - '84 2wd w/ a 6.0 swap
http://67-72chevytrucks.com/vboard/s...d.php?t=433595
harnalien is offline   Reply With Quote
Old 02-02-2011, 02:10 AM   #46
Gordonr1973
Home Built '87
 
Gordonr1973's Avatar
 
Join Date: May 2010
Location: Calgary, Alberta Canada
Posts: 1,829
Re: Please help me get started!

I bought the Painless chassis kit from the cab back and I got the PSI wiring harness for the motor re-wire.

I called Jon at PSI about 5 times with different questions and he seemed to have all the answers I needed. Painless was okay to talk to but their direct price was $300 more than what I bought their kit for from Summit.

Plus Jon said he'd reflash my PCM for free (I pay shipping) in case I change my tire size later on --- I'll probably get it dyno'd and reflashed locally once it's on the road though.
__________________
Gordon

1998 White Chev ext cab 2WD (Summer Project) http://67-72chevytrucks.com/vboard/s...d.php?t=408424
1987 Chev Silverado SWB (Winter Project Rebuild) http://67-72chevytrucks.com/vboard/s...d.php?t=424833
Truck Club http://67-72chevytrucks.com/vboard/s...d.php?t=466969
Gordonr1973 is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 02:19 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com