Just like the title says, what are you guys running or would recommend with the CC 503? Didn't pull much info up with a search.


Thanks

 

beehive 918's are fine

 

any double valve spring will do, check out crane 10-308 springs, they are popular

 

Comp Cam 987 is what I am using. Good for .600 on paper but .580 to be safe. Install height was 1.800 I believe.

 

Thanks for the replies so far guys.

I forgot to mention I'll be using stock valves, if it matters. And I'd like to use something that doesn't require any machine work.

I was already leaning towards the 918's a little bit. At the same time, the insurance of a double spring would be nice too.

 

I use the CC 26918 behives with my CC503 and LE2 heads.

HVY SS

 

I'm running the 918 beehives here... they're a good spring for the CC503 due to the ability of the beehives to control valve action with the CC503's steep lobes.

 

i'm runing the 918's on my cc306 with no problems so you should be fine.

 

Anyone else have anything to add?

I appreciate it everyone

 

Alright, I picked up the 918's

I have a couple other questions.

First, what valve spring compressor are you guys with 918's using? I don't have one at all so I need to get one but I don't want to get something that won't work with the smaller diameter on the top of the spring/retainer. I know a lot of the ls1 guys use a pedastal type but i havn't seen any of those for much less than a hundred bucks, and this tool factors into my overall budget so something a little cheaper would be nice.

Next, since the heads are off and being cleaned up, I was going to replace the valve seals. What size and type of seal do I need?