ONE-BAD-Z

need help with picking a cam for my vortec headed l98 350. i would like to for it to pull good from low end to top end an pull hard with with some what good street abilty.. the vortec head valve gide's have NOT been cut inty.. what do you guys that i should put in it??

ONE-BAD-Z

an lope pritty good an have lots of power

RamAir95TA

iTrader: (2)

Maybe try the third gen/SBC forum? This is the LT1 forum...you'd probably receive better info elsewhere.

jaycenk

iTrader: (1)

Try tahoe/yukon forum under the old body style section (years 1991 to 1999) I use this forum alot and I think I have seen this question there before. I know you limited on the amount of lift you can use because of those tall valve guides on the vortec heads but I don't recall how much. Post over there or at the chevy fullsize forum. You might also search to see if chevy highperformance did a build on a vortec engine. I think they did and they covered what you could use with uncut valve guides and cut valve guides.

96lt1m6

iTrader: (31)

You can get away with the zz4 cam 474/510 with stock 1.5 rockers. You want to be very carefull with anymore valve lift than that......With that said you can bring the heads to the machine shop to have the guide bosses machined down then add 2.00 1.55 valves and pin the studs in place or get screw in studs and plates ask me how I know

96lt1m6

iTrader: (31)

Plus with this work done you can step up on the cam selection quite a bit........LPE 219/219,cc503etc.

bowtienut

iTrader: (1)

Same car as in your sig? If so, I wouldn't even call it an L98 anymore.
With the limited info and objectives provided so far, I'd say go with something around a CC503 cam.

ONE-BAD-Z

yeah it the car in my sig.

joelster

Another vote for the comp 503 cam. It works great on stock LT1 heads. Vortec heads are very similar to them.

BTW, you will get more replies if you take the time to properly spell and punctuate correctly.

96lt1m6

iTrader: (31)

You guys are telling the OP to get the cc503 however if OP installs this cam he will have clearence issues with the Guide Boss to Retainer clearence. Vortex heads NEED to be machined in this area.........

shbox

That's why you don't ask LT1 people for non-LT1 help.

jaycenk

iTrader: (1)

x2 lol

bowtienut

iTrader: (1)

No, not necessarily. You can just run a Comp 915 or 918 beehive/retainer kit or the Crane 10309 spring/retainer kit. He will need to get decent springs anyway, no matter what cam.
Some of us LT1 guys DO work on other engines too

ONE-BAD-Z

that what comp cams said to use diff spring an retaners.

ONE-BAD-Z

Just because you don't know nothing about them. Don't mean other people don't. People like you make me wanna ->

shbox

Ask yourself "Is this an L98 forum or an LT1 forum?" It has nothing to do with what anyone knows.

It is courteous to others to follow the forum structure.

bowtienut

iTrader: (1)

Maybe the OP is more astute than you're giving him credit for. Maybe he realizes that the cam/spring setups that work on the LT1 iron heads are the same as for the L31 heads.
It doesn't hurt for LT1 guys to get a little cross-training

ONE-BAD-Z

haha yeah there we go!! lol