wanting to do a zz4hot cam in the 97 vortec motor its a truck! has anyone done the cam swap on the vortec motor and just do a simple tune on it to make it work?
did the same build up once before but was a carbed motor is was pretty damn sweet!
is there any efi problems with this build?

 

What are the specs? Just note you dont want it too big as your rev limiter will only go to 5800. What other mods do you have?

 

Hydraulic roller tappet
Basic Operating RPM Range: 1,800-5,800
Intake Duration at 050 inch Lift: 218
Exhaust Duration at 050 inch Lift: 228
Duration at 050 inch Lift: 218 int./228 exh.
Advertised Intake Duration: 279
Advertised Exhaust Duration: 287
Advertised Duration: 279 int./287 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.492 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.492 in.
Valve Lift with Factory Rocker Arm Ratio: 0.492 int./0.492 exh. lift
Lobe Separation (degrees): 112
will this work with the cpu?
long tubes with a flow

 

My buddy put one in a vortec 350 when his old tbi 350 died on him. It does ok. The lift isnt too bad using a stock 1.5 rocker arm. He has Jet make him a chip since he is still on the TBI system. Damn thing sound good to me.

 

Definately too big. I know a guy with one in his 383 and also says he woudl go with a different cam. Sounds pretty good though in his extended cab. He run high 13s with it.

You will definately have to have it tuned pretty much no matter the cam you go with. I would reccomend something like a 206/212 or a little larger.

 

That's a LT4 Hot Cam...not zz4 hot cam.

It will work in a 350 give an aggressive idle but a 212/218 would be better suited for the stock engine.

 

yea my bad! lt4 hot cam
i ran it in a carbed truck and it ran like a champ, would like to put it in a efi truck and maybe go with a 113 on a 114
think i could get comp to grind it for the that sep.


really think this cam would be better for efi

Hydraulic roller tappet
Basic Operating RPM Range: 1,400-5,400
Intake Duration at 050 inch Lift: 210
Exhaust Duration at 050 inch Lift: 220
Duration at 050 inch Lift: 210 int./220 exh.
Advertised Intake Duration: 266
Advertised Exhaust Duration: 276
Advertised Duration: 266 int./276 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.500 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.510 in.
Valve Lift with Factory Rocker Arm Ratio: 0.500 int./0.510 exh. lift
Lobe Separation (degrees): 114
Intake Valve Lash: 0.000 in.
Exhaust Valve Lash: 0.000 in.

 

see i thought it would be dead on in a 383 with a vortec head and 10-1 comp guess i was wrong

 

What are you wanting from this cam swap...more low end....more upper???

 

lower and mid