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 02-24-2019, 08:14 PM   #1
Akleypas
Registered User
 
Join Date: Jul 2018
Location: Hockley Tx
Posts: 59
LS hot cam in LY6

Howdy, I was wondering if anyone is running a GM "Hot cam" in a LY6. Ive recently been looking at cam shafts. Im considering Texas Speed stage 1 or stage 2 cam. I have recently been interested in GM's factory "Hot cam". When I searched I only saw references to running it in a 6.2 or a 5.3. Is it possible to run in a 6.0 (rectangular ports)? What kind of power can I expect from this application? If the camshaft is replaced with the GM hot cam do the push rods and springs also need to be replaced?
Akleypas is offline   Reply With Quote
Old 02-25-2019, 12:26 AM   #2
Captainfab
60-66 Nut

 
Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 22,759
Re: LS hot cam in LY6

You would likely get a reply if you had posted this in the LSX swap section. Send a PM to a mod and ask them to move it for you.
__________________
Power Steering Box Adapter Plates For Sale HERE
Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE
Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE
Hydroboost Mounting Plates HERE
Captainfab is offline   Reply With Quote
Old 02-25-2019, 04:13 PM   #3
Akleypas
Registered User
 
Join Date: Jul 2018
Location: Hockley Tx
Posts: 59
Re: LS hot cam in LY6

How do you PM MOD to have a post moved to another thread?
Akleypas is offline   Reply With Quote
Old 02-25-2019, 04:35 PM   #4
mongocanfly
Post Whore
 
mongocanfly's Avatar
 
Join Date: May 2015
Location: Alabama
Posts: 11,449
Re: LS hot cam in LY6

Truckdude239 mods this forum...just click his name on the right side and send him a pm....
__________________
Mongo...aka Greg

1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598
Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334
Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563
2013 GMC Z71..daily driver
mongocanfly is offline   Reply With Quote
Old 02-26-2019, 04:48 PM   #5
truckdude239
Senior Member
 
truckdude239's Avatar
 
Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 9,961
Re: LS hot cam in LY6

i like to move it move it
Attached Images
 
__________________
David fuller
Ase Certified Mechanic
Click here to help support our board!!


1971 Chevy c-10 under going a 4.8l LSx swap

Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305

2007 Honda Accord my daily 145kmiles
2002 Honda Accord 4 door With 330k(sisters car)
2005 toyota Avalon 228k( brothers car)
2002 Sububran 5.3 245k
2000 Tahoe 5.3l 378

General manager for Marco's Carwash & lube
truckdude239 is offline   Reply With Quote
Old 02-26-2019, 05:24 PM   #6
skyphix
Registered User
 
Join Date: Sep 2018
Location: Brooklin, ME
Posts: 335
Re: LS hot cam in LY6

Quote:
Originally Posted by Akleypas View Post
Howdy, I was wondering if anyone is running a GM "Hot cam" in a LY6. Ive recently been looking at cam shafts. Im considering Texas Speed stage 1 or stage 2 cam. I have recently been interested in GM's factory "Hot cam". When I searched I only saw references to running it in a 6.2 or a 5.3. Is it possible to run in a 6.0 (rectangular ports)? What kind of power can I expect from this application? If the camshaft is replaced with the GM hot cam do the push rods and springs also need to be replaced?


The GM Hot Cam will work, functionally, in your rectangle port 6.0. It would be what I'd personally consider a fairly mild cam with a moderate idle quality in a 6.0 though. What are you looking for?

Its generally recommended to do new push rods (HARDENED) and springs (LS6 blue springs or Pac1218's if you need more lift) regardless, though on the LY6 what you actually need to purchase will depend on some of the options you have. Do you have DoD (displacement on demand) and/or AFM (active fuel management?) Generally for performance applications or even just for longevity, deleting both of those is a good idea.

To delete them, both BTR (Brian Tooley racing) and Texas-Speed as well as I am sure several others (check our sponsors here first!) offer delete kits that include everything you need AND a cam of your choice. For a mild but noticeable idle and a decent power bump, something in the range of 550 lift and 230 duration at .050 with an LSA in the 112-114 range would give you a good performance bump, allow you to use the inexpensive LS6 blue springs most likely, and maintain a smooth driving experience.

By comparison, the GM Hot cam is 525 lift, 219/228 duration. A nice cam, for sure, but more generalist to include the smaller displacement engines (4.8/5.3) and keep a relatively streetable idle, but designed with the old mentality of poor exhaust flow on stock heads from what I can see, which isn't the case with the LS heads at the power levels we're talking about

Again, my personal preference is pretty rowdy engines unless I have to take customers with me or something like that. For my engine build I am looking at 600ish lift and 230ish duration on a 5.3. The actual cam I am really focused on right now is 237 @.050 and 600 lift, but its really a turbo cam and the end result of my engine is that it will be 6.0 (or close, stroked 5.3 with .020 overbore rather than going all the way to 3.898) with a fairly sizeable turbo.


Also, calling any of the vendors you're considering could be a huge help. I'm relaying information on what I've learned from my build and whats been suggested to me in brief conversations with some fairly well known LS builders/tuners, and the vendors do this day in and day out, with far more experience than I've got.
__________________
Eric
1980 C10 SWB

Last edited by skyphix; 02-26-2019 at 05:37 PM.
skyphix is offline   Reply With Quote
Old 02-28-2019, 12:27 PM   #7
Tork?
Senior Member
 
Join Date: May 2013
Location: Chicago, IL
Posts: 207
Re: LS hot cam in LY6

Hot cam is designed to work with stock ls6/LS3 valvetrain. It has a choppy idle and is known to surge at low rpm like a bigger cam, but has relatively tame specs overall. You’ll still need a tune like any other cam too. If you’re looking for a cam that can be reliable and not break parts and will lope in a parking lot it’s a fine choice. But there are other cams that will be more driveable and deliver a lot more hq and tq.

For example a 376/480 crate LS3 with a hot cam dynos only slightly higher than a bolt on LS3.
Tork? is offline   Reply With Quote
Reply

Bookmarks

Tags
cam swap, cam upgrade, gm hot cam, ly6

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 01:50 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
Copyright 1997-2013 67-72chevytrucks.com