LS1TECH - Camaro and Firebird Forum Discussion

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-   -   ID'ing valve springs (https://ls1tech.com/forums/generation-iv-internal-engine/1318020-iding-valve-springs.html)

ponyracer Aug 13, 2010 08:11 PM

ID'ing valve springs
 
I'm putting together a 6.0 iron block with l92 heads. The heads are nib from scoggin dickey and have been decked a little to bump the CR to 11 to 1. I'm trying to ID the springs, they have a med/dark blue stripe, single, beehive design. These sound alot like Comps 918's but did chevy ever make a design like this? I don't want to run the springs unless I can ID them, hate to destroy my new motor.

I can get pics if there needed. Also the engine came with a assa 550 lift cam and everything else was hi spec, arp etc.

Thanks!!

Darkman Aug 13, 2010 08:53 PM

May be the LS6 Spring.

https://ls1tech.com/forums/generatio...6-springs.html

ponyracer Aug 14, 2010 12:10 PM

Possible but the mounted height isn't correct. Mine are 1.82 to the top of the spring.

alexplantman Aug 14, 2010 12:49 PM


Originally Posted by Darkman (Post 13731283)

What he said!

68 RS Convertible Aug 14, 2010 01:36 PM


Originally Posted by ponyracer (Post 13731152)
I'm putting together a 6.0 iron block with l92 heads. The heads are nib from scoggin dickey and have been decked a little to bump the CR to 11 to 1. I'm trying to ID the springs, they have a med/dark blue stripe, single, beehive design. These sound alot like Comps 918's but did chevy ever make a design like this? I don't want to run the springs unless I can ID them, hate to destroy my new motor.

I can get pics if there needed. Also the engine came with a assa 550 lift cam and everything else was hi spec, arp etc.

Thanks!!

If you got the L92's new then thats what the springs are, just stock L92 springs. I think they are good to about .570 lift or so. If you search around you should be able to find the lift rating. My L92's had the same springs when I bought them new.

SweetS10V8 Aug 14, 2010 02:38 PM

None of the sets of L92 heads ive ever taken apart ever had springs that could take .570" lift. more like .500-.525" max

68 RS Convertible Aug 14, 2010 06:17 PM


Originally Posted by SweetS10V8 (Post 13733395)
None of the sets of L92 heads ive ever taken apart ever had springs that could take .570" lift. more like .500-.525" max

sorry, I searched the stock L92 valve springs. GM p/n 12589774 and are rated to .510 valve lift. didn't mean to give any bad info.

ponyracer Aug 15, 2010 01:04 PM


Originally Posted by 68 RS Convertible (Post 13733212)
If you got the L92's new then thats what the springs are, just stock L92 springs. I think they are good to about .570 lift or so. If you search around you should be able to find the lift rating. My L92's had the same springs when I bought them new.


I didn't buy them but they are new from scoogin dickey, the part number on the boxes = bare head castings?????

12615361 is the number off the box, they were assembled with springs and valves when I got them. That number doesn't cross to SD anymore but it does cross to other stores as a bare head. Not sure when these were bought, prob awhile back.

Here's some pics....

http://i39.photobucket.com/albums/e1...r/DSC04754.jpg
http://i39.photobucket.com/albums/e1...r/DSC04756.jpg
http://i39.photobucket.com/albums/e1...r/DSC04757.jpg
http://i39.photobucket.com/albums/e1...r/DSC04758.jpg
http://i39.photobucket.com/albums/e1...r/DSC04759.jpg
http://i39.photobucket.com/albums/e1...r/DSC04760.jpg
http://i39.photobucket.com/albums/e1...r/DSC04761.jpg
http://i39.photobucket.com/albums/e1...r/DSC04763.jpg

SweetS10V8 Aug 16, 2010 06:36 AM

They look stock to me.. Get them in a spring checker....

ponyracer Aug 16, 2010 07:23 PM

Great, looks like I need to order some springs....


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