I am restoring my car over the next year and have been considering getting a new crate motor. I currently have a used ZZ4 sitting in my garage that I planned on building up the bottom end and porting and polishing the heads. As of now, the only thing that the engine does not have is an intake and a carb. It does have water pump, alternator, power steering and distributor. If the engine is purchased, I will slap on an intake and carb of your choice and it will be a complete running engine. The engine has about 4,000 miles on it.

Or, we could work something out however you would like. E mail me or post for any questions.

thanks

Nick
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how much are you looking to get out of the motor complete? may be interested since i may have a buyer for my stock lt1. thanks.


-Daniel

 

oh yea, what are the specs on that motor? hp, torque, cam size, etc.... thanks again.


-Daniel

 

does anybody know about these zz4 crate motors? are they reliable? how hard is it to put into a 93' z-28? thanks.


-Daniel

 

Daniel,

I would like to get $3,000 firm for the complete motor. Here are the specs for the ZZ4.

part Number: 24502609 (ZZ4)
Displacement: 5.7-liter (350 c.i.d.)
Bore/Stroke: 4.00”x3.48”
Engine Block: 10105123 Four Bolt Main, Cast Iron
Compression Ratio: 10:1
Pistons: High silicon aluminum piston with offset pins, 10159436.
Crankshaft: 12556307 Forged Steel
Connecting Rods: 10108688 PM rods
Camshaft: Hydraulic roller tappet (#10185071)
Valve Lift (Intake/Exhaust): .474”/.510”
Duration (Intake/Exhaust): 208°/221° @ .050” tappet lift
Valve Lash (Intake/Exhaust): Zero/Zero
Cylinder Heads: Aluminum, 58cc chambers, 12556463.
Valve Diameter (Intake/Exhaust): 1.94”/1.50”
Valve Springs: LT4 chrome silicon, 12551483.
Rocker Arm Ratio: 1.5:1, 10089648
Distributor: HEI with centrifugal and vacuum advance, 01104067.
Spark Plugs: MR43LTS Gap .045, AC FR5LS Gap .035, Rapid Fire #5 Gap .045.
Fuel Requirement: Unleaded Premium 92 Octane
¹Ignition Timing: 12° BTDC @ 800 RPM, 36° total @ 3,200 RPM with vacuum advance disconnected.
Max. Rec. RPM: 5800 rpm
Note¹: GMPP has 32° total timing for the ZZ4 which is incorrect. Please use the information that we show for Ignition Timing.
Technical Notes: Carburetor, spark plug wires, starter, oil filter and oil filter adapter, and exhaust manifolds not included. Distributor P/N 01104067 or melonized distributor gear P/N 10456413 must be used on all crate engines with steel camshafts.

Nick

 

The ZZ4 series is a great engine, they hold up really well, and run good. As far as replacing your LT1 with it, I dont think it will work. I'm not the expert on it, but there are gonna be some diferences that will be a pain to adapt to your '93

 

Of course the info for the intake and distributor do not apply.

Extras are MSD pro billet series distributor, Edlebrock polished timing chain cover and march billet alternator and power steering brackets.

If you have a third gen, I have a nice set of SLP ceramic coated 1/34 headers and Y pipe that I need to get rid of too.

Nick