ExplodingGopher

Now im not a newbie when it comes to cams. Anybody that has this cam or knows about it please post.

224/230 @ .050 and .503/.510 lift on 112LSA with 1.5 ratio rockers

I've searched and read numerous good things about the CC503 and stock motors making some good numbers. I'm wondering if this cam will pass a smog test, i know the 112LSA is pushing it. I know that a 220/220 @ .050 with .500/.500 lift on 110LSA in a SBF will pass smog with flying colors, even without a tune. So the extra cubes of the LT1 with that extra duration and 112LSA should make the CC503 more friendly towards emissions...... Along with the cc503, i'll install the correct springs, 1.6 RRs, hardened pushrods and new oem lifters (learned my lesson on re-using old ones) Any opinions...

The car has edelbrock shorties (for now) SW Y pipe with randomtech cats (or offroad pipes if i want) out to a custom one-off GMMG based catback, all free flowing and all stainless steel. K&N CAI, new GM opti, and Taylor race wires is all i can see done to the motor. Hurst short throw and CAGS eliminator.

If you guys think the cam is too "iffy" on emissions, suggest a similar cam that will pass and retain about the same idle and powerband.

camarolvr69

well im pretty sure the lt4 hot cam will pass because of the fact that the lt4 motor didnt need EGR....so id say this cam should pass emissions-not much bigger than the hot cam (218/228). most of that depends on who does your tune...

Chris95Z

iTrader: (3)

the lt4 motor didn't have a hotcam, totally diff, but it does pass emmissions, I remember guys saying they've passed with the 503 too, don't know how close to the edge though. I do agree with the importance of a good tune.

BAD97SS

I have that cam with ported heads and intake. I have a tune and longtubes. It passed with flying colors. This cam is a sweet. Nice sounds and great powerband. John

camarolvr69

my bad