LQ4 heads, valve spring locator cast into head? - LS1TECH - Camaro and Firebird Forum Discussion

Notices
Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

LQ4 heads, valve spring locator cast into head?

Reply

Old 08-10-2018, 06:51 PM
  #1  
Teching In
Thread Starter
 
Join Date: Sep 2006
Location: Tacoma, WA
Posts: 38
Default LQ4 heads, valve spring locator cast into head?


Started installing valve springs today on my 2001 LQ4... ran into this. I havenít found any videos or pictures of anyone with similar in their cars.

Stock springs had no locators to remove. Appears the locator was cast into the head? I sent pictures to BTR as im using their springs and Iíve received nothing from them.

Anyone else have heads heads like this? BTR locators obviously wonít go all the way down against the seat so confused what to do...
FullOutPwr is offline  
Reply With Quote
Old 08-10-2018, 07:39 PM
  #2  
TECH Senior Member
 
Join Date: Jun 2016
Location: Central Cal.
Posts: 6,227
Default

Are these cast iron heads? They were made around 2000-01, then discontinued. IF cast iron, they might not need locators. Aluminum does.
G Atsma is online now  
Reply With Quote
Old 08-10-2018, 07:50 PM
  #3  
Teching In
Thread Starter
 
Join Date: Sep 2006
Location: Tacoma, WA
Posts: 38
Default

These are cast iron... so Iím good to NOT run locators even on double springs?
FullOutPwr is offline  
Reply With Quote
Old 08-10-2018, 09:18 PM
  #4  
TECH Senior Member
 
Join Date: Jun 2016
Location: Central Cal.
Posts: 6,227
Default

THAT'S gotta be a HEAVY engine! You should be OK, BUT you might want to call WS6store to be sure. They'll give you the right answer....
G Atsma is online now  
Reply With Quote
Old 08-10-2018, 09:23 PM
  #5  
Teching In
Thread Starter
 
Join Date: Sep 2006
Location: Tacoma, WA
Posts: 38
Default

Originally Posted by G Atsma View Post
THAT'S gotta be a HEAVY engine! You should be OK, BUT you might want to call WS6store to be sure. They'll give you the right answer....
sad thing is itís nearly identical weight wise to the 2v ford 4.6 that came out.
FullOutPwr is offline  
Reply With Quote
Old 08-10-2018, 09:45 PM
  #6  
TECH Senior Member
 
Join Date: Jun 2016
Location: Central Cal.
Posts: 6,227
Default

Agreed, and I think they have aluminum heads, but it is such a BIG and BULKY engine, besides being such a dog.
G Atsma is online now  
Reply With Quote
Old 08-10-2018, 11:25 PM
  #7  
TECH Fanatic
iTrader: (31)
 
brandon6.0's Avatar
 
Join Date: Dec 2009
Location: Glennville, GA.
Posts: 1,802
Default

I would upgrade to some aluminum 317s. Can be found cheap for around $200.

I havnt messed with any of the iron ls heads. I know older sbc iron heads can be ran without locaters. Aluminum heads must have them! If u plan on keeping those heads just add the seals to the guides and run the springs on the heads. U can buy locaters if u want to add them.
brandon6.0 is online now  
Reply With Quote
Old 08-10-2018, 11:28 PM
  #8  
TECH Fanatic
iTrader: (31)
 
brandon6.0's Avatar
 
Join Date: Dec 2009
Location: Glennville, GA.
Posts: 1,802
Default

Im betting the BTR locaters want fit the guides? Looks like your running dual springs.

If so u may have no choice but to run single springs on those heads with seals on the guides. What seals come off the heads??
brandon6.0 is online now  
Reply With Quote
Old 08-11-2018, 09:20 AM
  #9  
Teching In
Thread Starter
 
Join Date: Sep 2006
Location: Tacoma, WA
Posts: 38
Default

Originally Posted by brandon6.0 View Post
Im betting the BTR locaters want fit the guides? Looks like your running dual springs.

If so u may have no choice but to run single springs on those heads with seals on the guides. What seals come off the heads??
Yup, BTR locators wouldn't fit the heads. Stock it was the brown seals straight on the guides with no locators.
FullOutPwr is offline  
Reply With Quote
Old 08-12-2018, 09:44 AM
  #10  
Teching In
 
Join Date: Sep 2015
Posts: 3
Default

Youíll have to machine that boss down to either .562Ē or .500Ē (most common sizes for machine shops). Then run the locator. Itís just like the older cast iron headed engines (sbc, sbf, bbc, etc.). Make sure you match the spring locators to whatever itís machined to. Standard LS guides are .500Ē but a lot of bronze guides are .562Ē. They make locators for both. Do not run the dual spring on that boss as is. Youíll definitely run into issues.
JJ1015 is offline  
Reply With Quote

Thread Tools
Search this Thread

Archive Advertising Cookie Policy Privacy Statement Terms of Service

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: