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PAC 1218 Springs?

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Old Mar 10, 2009 | 11:23 PM
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Default PAC 1218 Springs?
Are these safe you use with stock retainers and seats?
just making sure...
thanks!
btw i have a 2004 GTO so i have the 01 up style seat.
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Old Mar 11, 2009 | 12:02 AM
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Absolutely, no issue as long as your stock gear is in good shape.
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Old Mar 11, 2009 | 12:29 AM
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those are the same ones I just put on mine with stock seals, retainers, locks...


Do you think by chance sometime I could come and check out your ride with the 228r in it? I'd like to see the characteristics of that cam.




Michael
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Old Mar 11, 2009 | 12:51 AM
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yea its not running yet valvetrain parts come in thursday.
but sure man!
yea stock gear has 30k on it and is in good shape.
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Old Mar 11, 2009 | 12:59 AM
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sounds good. I'm assuming you got those springs from SDPC, correct? Absolutely great price thru them. I kinda wish I went with the 1518's though. Oh well.
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Old Mar 11, 2009 | 09:30 PM
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got them from TSP...

did you have shim yours?
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Old Mar 11, 2009 | 11:20 PM
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I am running the PAC 1218s with my tr224 cam on stock retainers and locks
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Old Mar 12, 2009 | 07:16 AM
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Originally Posted by Raise
I am running the PAC 1218s with my tr224 cam on stock retainers and locks
i got the spring installed height measureing tool to make sure, but did you shim yours at all?
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Old Mar 12, 2009 | 09:34 AM
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PAC-1218 and PAC-1518 are LS1 drop in replacements, okay to use stock seats, seals, and retainers no problem. Stock retainers are a gram lighter then aftermarket retainers (steel) too!
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Old Mar 12, 2009 | 07:00 PM
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Originally Posted by Raise
I am running the PAC 1218s with my tr224 cam on stock retainers and locks
me too....
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Old Mar 12, 2009 | 09:09 PM
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I can only find comp springs at tsp and scoggin dickey. Where are you guys finding the pac springs? I dont want comps junk, sounds like they are still failing people
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Old Mar 12, 2009 | 09:15 PM
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Originally Posted by sdimer350
I can only find comp springs at tsp and scoggin dickey. Where are you guys finding the pac springs? I dont want comps junk, sounds like they are still failing people
https://ls1tech.com/forums/generatio...pac-1218s.html
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Old Mar 12, 2009 | 09:45 PM
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i can also vouch for blancoss. good sponsor.
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Old Mar 12, 2009 | 10:01 PM
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Originally Posted by 04BlackGmc
got them from TSP...

did you have shim yours?
I did not shim mine.


I don't see those 1218's listed on TSP's site, but I hope you didn't pay more than $125 for them.
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Old Mar 12, 2009 | 11:20 PM
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nope...

you have to call and ask for them..
PR's and springs 255 SHIPPED
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Old Mar 12, 2009 | 11:23 PM
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http://www.sdpc2000.com/product/SDL1...S1Setof16.aspx
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Old Mar 13, 2009 | 01:01 AM
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Sounds good.

What length pushrods did you go with? Is it in and running yet?
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Old Mar 13, 2009 | 01:05 AM
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yep running tonight went with the standard 7.4's

getting tuned tuesday..

but took it out and baby'ed it, heat cycling the springs
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Old Mar 13, 2009 | 01:18 AM
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who's tuning it for you? 7.425s would have been a better choice for reduced valvetrain noise, but the 7.4s will work.
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Old Mar 13, 2009 | 08:05 PM
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smokingws6(josh bommer)has tuned alotta local ls cars.
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