LT1-LT4 Modifications 1993-97 Gen II Small Block V8

CC 503 swap

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Old Nov 9, 2009 | 03:57 PM
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Default CC 503 swap

Im lookin to go from the hotcam to the 503 however im trying to make this swap as cheap as possible as i am tight on funds. The motor will already be out as I am having it rebuilt as well. I will be getting rid of the LT4 springs and also the SA rockers for a set of NSA rockers as ive heard they will be better for the new setup. So I guess my question is what are the cheapest springs i can run wit this cam and or is it possible to run an LS6 spring?! Im also looking for some cheap NSA 1.6's. I know there are plenty options out there but like i said im trying to keep this as cheap as possible. Any help help is appreciated. thanx
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Old Nov 9, 2009 | 04:38 PM
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https://ls1tech.com/forums/lt1-lt4-m...etup-help.html

Post #6 and down from there

I used these on my CC503 and have yet to have any issues with them.
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Old Nov 9, 2009 | 04:55 PM
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Springs: Crane 10308-1 Spring Kit
Rockers: I would check the for-sale section for some used NSA Crane Golds, Comp Pro-Mags or the like.
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Old Nov 9, 2009 | 10:28 PM
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Cheapest springs? Well be careful with that stuff or your going to be pulling it apart again soon. Your best bet for good springs at a GOOD price is parts sectional and be patient. Good things don't come by the hour.
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Old Nov 9, 2009 | 11:48 PM
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As said, I would NOT cheap out on valvetrain.. After all, horsepower is made up top!

I'd look around for a set of comp pro mags. And go for the cran 10308 Kit or the like..

I would bite the bullet though and for sure spend a few extra bucks for more security. Better safe then sorry for up top!
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Old Nov 10, 2009 | 12:55 AM
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Ok well i'll be grabbin the crane 10308-1 spring kit and ill be looking for some NSA crane golds or comp pro mags. Thanx 4 the help guys
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Old Nov 10, 2009 | 09:23 AM
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Alright sounds good make sure you put in account that with some NSA RR your going to need to get HARDEN pushrod and Guideplates. Also need to get the 7/16 Rocker studs.
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Old Nov 10, 2009 | 03:12 PM
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I already got the hardened pushrods but was not aware that I would need rocker studs and guideplates. Anyone know how much those are gonna run me?! thanx again
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Old Nov 10, 2009 | 04:26 PM
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Originally Posted by yonerhottlt1
I already got the hardened pushrods but was not aware that I would need rocker studs and guideplates. Anyone know how much those are gonna run me?! thanx again
$36 for Studs: http://www.summitracing.com/parts/ARP-134-7103/

$26 for Guideplates: http://www.summitracing.com/parts/TFS-30400623-8/
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Old Nov 11, 2009 | 03:18 PM
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Ok so now im looking on summit at comp pro mags and crane gold NSA 1.6's. Will I need shims to run either of these sets of rockers?! Also, i plan on getting a new set of LS7 lifters so with all this new stuff will i have to change pushrod length?!
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