Just out of curiosity what will this came do over a stock one in a 92 iroc motor l98 5.7 ie hp and torqe increase

 

What are the specs for the cam?

 

hell you got me i can find out its in a camaro i'm buying tomorrow Doesn't really matter to me i know stock its 245/333 i believe the cam is the only thing that has been done to it. motor wise its got the eibach pro kit spohn lca slotter rotors and hi perf pads in the front from ssbc aw hell got the cam wrong its a lt4 perf cam not the hot cam
when he had the stock motor and the stock tranny this is what he ran 14.271@98.51 now it has the lt4 cam t56 trans and the susp so its probly running 14.1 13.9

 

also the 350 is speed density ???? i've had a 2.8 for the last 9 years so this 350 **** is not of my understanding

 

I updated the subject for you. There's a bit of difference between "LG4" and "LT4". In fact, "LG4 Performance Cam" is an oxymoron. . .

 

thanx man it wouldn't let me edit it or delete the post to repost with correct ?

 

Yeah, the subject line can only be edited by Mods.

 

Ok, first, there are no 92 IROC's. The IROC name was used from 85-90. Yes I know its a technicality, but that counts around here.

Two, is that the LT4 HOT cam with 218/228 duration and .492/.492 lift? Or the stock LT4 cam with 203/210 duration? The HOT cam will not fit with the valve springs used on stock heads. You will need to pull the heads and have them machined for the larger cam, as well as use better springs to handle the lift. If its the stock LT4 cam, you are fine, it will handle it.

Third, yes the 90-92 engines use the speed density computer, and the HOT cam is too big for the computer to handle it. You will need to get a custom chip burned by someone sitting there watching the car on a scan tool, not by someone on the internet mail-order.

 

its not the hot cam its the performance cam

 

There are only two LT4 cams. The stock one or the Hot Cam.

 

well will the stock lt4 cam give you anything hp/tq over the stock l98 one?

 

Yes, but not enough to be worth the hassle. Just put some 1.6 roller rockers on your stock cam, more bang for the buck compared to a stock LT4 cam swap.

Where are you getting this "performance cam" notation? FWIW, I think the Hot Cam can be denoted as the performance cam for the LT4 so you may be referring to the Hot Cam.

Duration 218/228
Valve lift with 1.5 ratio rockers .492/.492
Valve lift with 1.6 ratio rockers .525/.525
LSA 112deg

Edit:

Stock 90-92 L98 cam.
Duration 202/207
1.5:1 .413/.428
1.6:1 .441/.457
LSA 114.5

Stock LT4 cam.
Duration 203/210
1.5:1 .446/.449
1.6:1 .476/.479
LSA 115