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LQ4 heads, valve spring locator cast into head? https://cimg5.ibsrv.net/gimg/ls1tech...8fe97ad24.jpeg Started installing valve springs today on my 2001 LQ4... ran into this. I haven’t 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 I’ve received nothing from them. Anyone else have heads heads like this? BTR locators obviously won’t go all the way down against the seat so confused what to do... |
Are these cast iron heads? They were made around 2000-01, then discontinued. IF cast iron, they might not need locators. Aluminum does. |
These are cast iron... so I’m good to NOT run locators even on double springs? |
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.... |
Originally Posted by G Atsma
(Post 19946862)
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.... |
Agreed, and I think they have aluminum heads, but it is such a BIG and BULKY engine, besides being such a dog. |
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. |
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?? |
Originally Posted by brandon6.0
(Post 19946921)
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?? |
You’ll have to machine that boss down to either .562” or .500” (most common sizes for machine shops). Then run the locator. It’s just like the older cast iron headed engines (sbc, sbf, bbc, etc.). Make sure you match the spring locators to whatever it’s machined to. Standard LS guides are .500” but a lot of bronze guides are .562”. They make locators for both. Do not run the dual spring on that boss as is. You’ll definitely run into issues. |
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