Cam time

[minichopper6hp]

Ok, so i think ive decided on the VS cam, mostly because its a milder cam and that i dont want to go breaking timing chains and such, not looking to go all out just a little more. I know i will probably need springs, which ones? Also, is the JP timing set any good or am i fine with my stock stuff, it only has around 30k on it since replaced. I am good with stock push rods right? Thanks in advance im just trying to learn about the cam setups on here.

One more thing, will i need to tune for this cam right off the bat? I see on zzps website that it doesnt set the p0300 code, i plan on getting a PT soon so i was just wondering. Thanks.

[matt5112]

stock timing chain FTW. stock pushrods are fine as long as yours arent worn too much.

90's would be fine for springs but i'd go for 105's since they cause less wear on the timing chain tensioner and you can rev it a bit higher (which is pointless)

[TheOtherNick]

Stock timing chain, #105 springs, Tune, new lifters if yours are starting to tick.

[matt5112]

crow cams springs.... no comp cams.

[TheOtherNick]

Also need modded retainers.

[minichopper6hp]

Modded retainers? Where can i find those? Arent the ls7 lifters the ones i want? Mine dont tick but they have 100k on them cause i didnt replace them when i did the rebuild. Anyone have a link to those two things?

[matt5112]

anyone who sells the springs will sell the modded retainers.

the LS7 lifters are the same as OE replacements for our engines, just cheaper to get them "for" an LS7 and you get two extras.

[minichopper6hp]

Oh, ok. That works. The modded retainers are they these ones?

https://www.zzperformance.com/grand_...=108&catid=104

[TheOtherNick]

Yup. If you plan on just running the vs cam, just the steel will work, large cam needs the modded steel, if you have too much money on your hands you can get the titanium.

[minichopper6hp]

These are the correct lifters, correct?

NEW GM CHEVY/CORVETTE LS1/LS6 HYDRAULIC ROLLER LIFTERS: eBay Motors (item 330424963680 end time May-17-10 10:08:45 PDT)

[minichopper6hp]

Also, im porting my heads. Would it be beneficial to get bigger valves put in by the machine shop after i get done porting them? If so, what size and will this change anything with my spring or retainer setup? Thanks.

[Bio248]

DO NOT run a single roller. they have a higher rate of failure than double rollers do. FYI, the timing chain has never been broke unless the tensioner broke before it and took it out.

Also, im porting my heads. Would it be beneficial to get bigger valves put in by the machine shop after i get done porting them? If so, what size and will this change anything with my spring or retainer setup? Thanks.

with a VS, no.

[minichopper6hp]

Ok so stock valves, modded retainers, lsx lifters, 105 crow cam springs, stock push rods, and stock timing chain will be good?

[rynoman03]

I thought a person could run a VS cam with stock valve-train.

[Bio248]

sure will be.

I thought a person could run a VS cam with stock valve-train.

not if you want to rev it a little higher or have higher mileage valve springs.

[OH4CompG]

Have the p0300 turned to no report anyway. I had a gt1 in my n/a setup and it tripped the code more than once even though they said it wouldn't. As far as timing chains, I had just a stok replacement and new tensioner on it when I did my cam

[blueguy]

Even the #90 LS6's with LS6 retainers will work just fine for that setup and they are cheap.

[minichopper6hp]

Really? I thought the 90's were harder on the chain then the 105's?

[blueguy]

Really? I thought the 90's were harder on the chain then the 105's?

No...#105's would be harder because of the higher rate.

[Bio248]

No...#105's would be harder because of the higher rate.

no...the 90# springs are harder on the chain because of their spring rate CURVE. the 105# are a better choice.