Picked up a ZZ4 engine

[99 2dr]

Hey Guys I was at an auction over the weekend and I picked up two brand new ZZ4 crate engines. They are the 355hp 400ftlb model. I would like to put my sitting my heads,intake, ect..... on them and dropping it into my Tahoe. My 64 cc vortec heads should lower the compression enough to run 87 and the vortec heads outflow the L98 heads. Both engines have the plastic front timing cover and crank sensor location like the vortec block. Of course I would need to have BB tune the computer. I think that my stock fuel system with the upgraded injection spider should be enough. For those of you in California, how big have you gone motor wise and still made it past smog inspection? What do you guys think? I got them both for the price of one new one. If for some reason I cant use one in the Tahoe, I have plenty of other projects. Just too good of a deal to pass up.


ZZ4 350 TURN-KEY TECH SPECS:
Part Number: 12499712
Engine type: Chevy small-block V-8
Displacement (cu in): 350
Bore x stroke (in)cf6 : 4.00 x 3.48
Block (P/N 10105123): Cast iron with 4-bolt main caps
Crankshaft (P/N 12556307): Forged steel
Connecting rods (P/N 10108688): Powdered metal steel
Pistons (P/N 10159436): High-silicon aluminum with offset pins
Camshaft type (P/N 10185071): Steel hydraulic roller
Camshaft lift (in): .474 intake / .510 exhaust
Camshaft duration (@.050 in): 208'c1 intake / 221'c1 exhaust
Cylinder heads (P/N 12556463): Aluminum; 58cc chambers
Valve size (in): 1.94 intake / 1.50 exhaust
Compression ratio: 10:1
Rocker arms (P/N 10089648): Stamped steel
Rocker arm ratio: 1.5:1
Recommended fuel: 92 octane
Ignition timing: 10'c1 BTDC @ 800 rpm, cf0 32'c1 total @ 4000 rpm with vacuum advance disconnected
Maximum rpm: 5800

 

[retorq]

You'll need to do some work on those Vortecs to use that cam ... will be a good overall engine once tuned properly.

 

[07Burb]

I'm in for this swap!!!! Nice job on the deal man

 

[99 2dr]

Retorq, I was thinking some port-polish on the heads and some new springs. Do you have anything else in mind. My main concern is getting it to pass smog. Any other California guys running a big cam and getting it to pass? If so, how big is it?

 

[IRQVET]

Nice score indeed !!

 

[98blackbell]

Great find, that will be an awesome upgrade for you tahoe

 

[Gzes]

I got a great idea. Leave stupid cali and no more smog inspection here in tx we dont care plus you can mod the motor up more and be good nice 2dr by the way. Looks like mine exept urs is all white

 

[99 2dr]

Well I'm kinda stuck here in California. Believe it or not, there are several counties in California that don't require smog inspection. Mine is not one of them. My trans is currently built fairly stout however I'm thinking that it wont last too long with the new power and all the towing I do. As soon as a NV4500 finds its way into my shop,the swap will begin. Here is a shot of the TWO ZZ4's and a pic of the Tahoe from an outing this weekend.

 

[Gzes]

They look sexy and the hoe is also sexy. U making it a street truck or making it into a badass lifted hoe that can beat tue shit out of any ford. Mine can beat a ford right now and its broken

 

[foreverfalcon40]

How the **** did you score to zz4? Find it in a locker?