I've decided that I want to do a CC306 over the winter on my 96 Z28, and have been trying to put together a list of the required valvetrain components. Unfortunately, after doing the math, this stuff starts getting expensive! I also don't have too much knowledge about every single part that's required. I'll post a list of what I've come up with so far, but I need advice on what I should add/change/remove in order to get a valvetrain that works for the least amount of cash. This will be a cam-only car, by the way. (Please keep the "CC306 is too big for stock heads" drama to a minimum, thanks.)

CC306 (obviously)
Comp 918 springs
Titanium retainers
Comp Pro Magnum 1.6 roller rockers (self-aligning, 3.8")
Comp hardened pushrods (stock length)

Now, I think I'm missing some little stuff, so I'll need some advice on that. Am I headed in the right direction, or am I way off? Basically I'm just looking for the most cost-effective valvetrain that will WORK. I also need to make sure I have a complete list of everything I need, so I can order the parts ASAP.

 

Ti retainers just went up in price again, do the steel one's then you can buy the 7/16 studds , gm guide plates, 7/16 rockers none self align.

 

The steel retainers on a beehive spring are small and light anyway, so just like roadtrip said invest in a more stable setup.

 

You guys just said about the exact same stuff I did on the other forum he asked this question, glad to see we are in agreement, likely means these are good ideas.

 

Don't forget a timing chain. I wouldnt run a stocker on a cc306.

 

I thought '95 up LT1s came with hardened pushrods.

 

Correct me if I am wrong. But I just read a big artical in Car Craft I think it was. They were talking about the Comp beehive springs and such, but they stated that a SA valve train is more stable then a NSA valve train. Whats the opinion on that?

 

That might be but i wouldnt chance it. I had never used the poly locks before and the rockers backed off and the sa tips didnt align them and the rocker mover cause it was loose and pushed down on the retainer and knocked out 1 keeper(lucky some have droped valves like this.) I also bent 6 push rods.

I i had quide plates the rockers wouldnt have been able to move.

 

No one can ever decide on the same years. Some say 94 some 95, some only 96-97. All I know is its not worth a $1000+ on a rebuild to save $25 on some new pushrods.

-Dustin-

 

Ok, I've revised my list of parts. Does this look right? Anything that I need to change? Oh, and I have no clue whether to get 10* or 7* locks and retainers, so I just put 10* as a guess. Someone let me know if that's correct. Here's my list of parts, complete with part number, price, and vendor information. All these prices are the lowest I could find. Any input would be very helpful, considering I really don't know jack about valvetrain components.

[code]
Comp CC306 cam $245.95 CCA-07-306-8 Summit Racing
Comp 26918 beehive springs $159.99 63-26918-16 Thunder Racing
Comp spring locators $32.00 63-4705-16 Thunder Racing
Comp 11/32 10* lock set $19.76 CC-613-16 Combination Motorsports
Comp 10* steel retainers $49.95 63-795-16 Thunder Racing
Comp 1.6 non-SA rockers 7/16" $270.26 CC-1305-16 Combination Motorsports
Comp 7/16" rocker arm studs $29.95 63-4501-16 Thunder Racing
GM guideplates (8 needed) $26.32 20-14011051 Thunder Racing
Comp hardened pushrods $36.95 63-7808-16 Thunder Racing
LT4 extreme duty timing set $279.97 GM-12370835 Combination Motorsports
Oversize crank sprocket $40.00 68-S645 Thunder Racing
[/code]

 

I'd get the LT4 extreme duty somewhere else. I think i got mine from GMpartsdirect for a little over $200 and i thought my buddy priced one from Jason Cromer for about $180ish. This was several years ago though.

 

I just checked the price on GM Parts Direct (p/n 12370835), and it comes out to $257.20 with shipping. Perhaps I'll use them instead.

 

I know a place you can get those RR's for cheaper. They are not a board sponser, but they are like $25 cheaper. PM me for info if you would like.

 

You have a PM.

 

So do you.