The beginning...LSx project - Page 3 - CorvetteForum - Chevrolet Corvette Forum Discussion


C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

The beginning...LSx project

Reply
 
 
 
Thread Tools Search this Thread
Old 04-16-2018, 10:35 AM   #41  
JakeOelSnakeO
Junior Member
 
JakeOelSnakeO's Avatar
 
Member Since: Jan 2018
Location: Jackson MI
Posts: 7
Thanked 0 Times in 0 Posts
Default

Subbed! I've currently got my LT1 and 4L60E out of my car. I'm building up a LY6/T56 swap for my '94. The only thing I havent quite decided on yet is what to do with the front accessory drive- what donor parts to use or if I will keep AC or not.

Good luck with build!
JakeOelSnakeO is offline   Reply With Quote
Old 04-16-2018, 11:31 PM   #42  
Krusty84
Junior Member
 
Krusty84's Avatar
 
Member Since: Mar 2018
Location: DFW TX
Posts: 28
Thanks: 0
Thanked 5 Times in 5 Posts
Default

Stock LS3 heads, long tubes and a decent cam is the only way to go with a cheap 6.0 swap. Spending serious cash on some Cathedral Ports to retain the "low to mid-range" torque everyone always talks about isn't worth the money. Run a manual trans or a 3k+ stall with the LS3 heads and have some real fun.
Krusty84 is offline   Reply With Quote
Old 04-19-2018, 04:19 PM   #43  
Mike Holmen
CF Senior Member
 
Member Since: Nov 2015
Location: Airdrie Alberta
Posts: 366
Thanked 24 Times in 23 Posts
Default

The trade off is the LS3 heads don't make as much torque and power below 4000 rpm like cathedral head. Don't forget you need a different exhaust rocker arm and a rocker arm trunnion kit if you going to have a cam with lifts over 0.550 lift.

For $500 Katech will cnc port/adjust combustion chamber size.
http://store.katechengines.com/cnc-p...eads-p589.aspx

Its a cheap way to get near stock LS3 flow numbers and the ability to adjust combustion chamber size.

I have a set of cnc 0821 GM LS3 heads, I'm on the edge on whether to sell them and going send in my LQ9 0317 to Kaltech. The LS3 is really too much head without the variable cam timing for us high geared C4 corvette.

My car is driver and I worry more about fuel mileage/drivablity than maximum power. Worst case is you could throw on a boost adder device if you need more power.
Mike Holmen is offline   Reply With Quote
Old 04-20-2018, 05:04 AM   #44  
Krusty84
Junior Member
 
Krusty84's Avatar
 
Member Since: Mar 2018
Location: DFW TX
Posts: 28
Thanks: 0
Thanked 5 Times in 5 Posts
Default

Quote:
Originally Posted by Mike Holmen View Post
The trade off is the LS3 heads don't make as much torque and power below 4000 rpm like cathedral head. Don't forget you need a different exhaust rocker arm and a rocker arm trunnion kit if you going to have a cam with lifts over 0.550 lift.

For $500 Katech will cnc port/adjust combustion chamber size.
http://store.katechengines.com/cnc-p...eads-p589.aspx

Its a cheap way to get near stock LS3 flow numbers and the ability to adjust combustion chamber size.

I have a set of cnc 0821 GM LS3 heads, I'm on the edge on whether to sell them and going send in my LQ9 0317 to Kaltech. The LS3 is really too much head without the variable cam timing for us high geared C4 corvette.

My car is driver and I worry more about fuel mileage/drivablity than maximum power. Worst case is you could throw on a boost adder device if you need more power.
Blah blah blah.... I don't like making a lot of horsepower and torque above 4k, I drive my 'driver' like a baby and want the extra 18 ftlbs below 4k.

Last edited by Krusty84; 04-20-2018 at 05:04 AM.
Krusty84 is offline   Reply With Quote
Go Back   CorvetteForum - Chevrolet Corvette Forum Discussion >
Reload this Page
  • The beginning...LSx project
  •  
     
    Reply

    Related Topics
    Thread Thread Starter Forum Replies Last Post
    2000 C5 T-56 Motor Swap Questions j.horseman C5 Tech 0 06-30-2017 12:45 PM
    Ls1 headers on LQ4 swapped c5 Myfirstc5 C5 Tech 0 02-19-2017 04:49 PM
    LQ4 Swap ClevelandTim C5 Tech 0 10-16-2016 06:24 PM
    6.0 lq4 215 trick flows what cam? delivered C5 Tech 4 09-18-2016 04:37 PM
    Ohio 69 stingray lq9 swap nalfred69 Intros 11 04-05-2016 09:37 PM


    Thread Tools Search this Thread
    Search this Thread:

    Click for Advanced Search

    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
    Trackbacks are Off
    Pingbacks are Off
    Refbacks are Off

    Forum Jump

    Sponsored Ads
    Vendor Directory

    All times are GMT -4. The time now is 12:57 AM.


    We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
     
    • Ask a Question
      Get answers from community experts
    Question Title:
    Description:
    Your question will be posted in: