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ZZ4 what do i have, need some help.

  
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ZZ4 what do i have, need some help.

 
jonser jonser
New User | Posts: 3 | Joined: 04/13
Posted: 04/11/13
06:15 AM

Help Please,
I recently picked up a ZZ4 crate motor that has been sitting since 2004 garaged. The receipt has # 24502609 for the motor. The rear block has stamped # 10243880. What i need to know is what i have to purchase the starter, flywheel pulleys, power steering pump, carb and etc. It has never been started and i have pulled the plugs and turned the crank and everything seems to work fine.
I'm just a back yard mechanic working on a 68 Firebird project car with my wife and two girls.
Please help!!
Thank you  

68scott385 68scott385
Guru | Posts: 1990 | Joined: 10/09
Posted: 04/11/13
06:39 AM

All the parts for a same year Camaro should work as far as flexplate/flywheel and starter unless the motor has a one-piece rear main seal. In that case you'd have to get parts compatible with a later model, like 88-94ish Gen I small block. I don't recall off hand when the Gen II motors started appearing in Camaros. IMO, a good junkyard crawl would yield a pulley setup that you can use.  
68scott385 68scott385 68scott385

waynep712222 waynep712222
Enthusiast | Posts: 251 | Joined: 03/13
Posted: 04/11/13
11:05 AM

just curious.. if you have this file that goes with that motor part number...


http://www.chevroletperformance.com/_res/pdf/installation_guides/small_blocks/zz4-350/ZZ4_Long_Block.pdf  

JTH55 JTH55
New User | Posts: 32 | Joined: 11/12
Posted: 04/11/13
03:33 PM

jonser,
I personally would not turn the motor over much until u have a chance to check for possible rust in the cylinders.see if u can borrow a scope or know a mechanic that could have a look for u.after setting for 8 years it wouldnt be a bad idea to have the valve springs checked also.JMO  

pepsi1 pepsi1
Guru | Posts: 1718 | Joined: 09/11
Posted: 04/11/13
03:38 PM

Jonser Welcome to CHP:

The engine P/N  10243880 you gave us tells me this:

1.P/N 10243880 is a Gen (1) '95-2000, vintage

2.Could have (2 or 4) bolt mains.

3.Has (1) piece rear main seal

4.Vortec Truck Gen.(1) crate engine "ZZ4"

5.Hydraulic Roller Cam..

P/N 10185071
.208/.221 duration @.050
.474/.474 Max lift with 1.5 rocker arm ratio
9:8:1 Compression Ratio?
112* LSA
350/345 "ZZ3" & "ZZ4" Crate engines

  IMO: I would purchase a High Torque Mini Starter. They are very adjustable for either a small block or big block chevy. I've used the high end mini starter for my race engines. I had a 14:5:1 compression. There are guys with mountain engines with 17:5:1 without a problem....
  My son did his 1968 Camaro with a "ZZ4" engine back in 1998. The engine was supplied with a damper and (2) different timing tabs.
  He used a Complete March Serpentine Belt Pulley Set-Up. It is a little more expensive, but the Quality is Superb.When he was done the pulleys ran true, the pulleys were the correct diameter. If you go with any aftermarket company such as March, just let them know all the accessories your using.
  As far as the (flex-plate) or (Flywheel) use a high quality something that is Certified. You'll see the price on some parts are $20 to $25 difference. But when your spinning your small block into the Stratisphere it won't blow apart.lol.
  I would remove the oil pan and check the clearances on the Mains and Rod Bearings. Now is the time to do it. You can Plasti-Gauge the mains and rods. Mig-   Weld or Braze the oil pump pickup to the oil pump. (Just take the oil pump apart when you weld it). Mark the pick-up (Grease Pen) where it goes into the pump. This way it will reference it when you weld it. (Myself and a friend are doing some research on small block oil pumps cracking under load. (We will eventually complete are tests). I have had some personal things to do that are taking up a lot of my time.(Just a little FYI) If you want to just increase the oil pressure to approx. 65-70 PSI a standard Z-28 Oil Pump use this Pressure Relief spring P/N 3848911 it's color coded (White)  
  IMO:...It would be wise to weld or braze the pick-up on, and check the clearances on the mains and rod bearings...I know I repeated myself, but the engine is there.
  For your Carb: Go NO BIGGER than a 650 CFM, a street avenger Holley, Electric choke, and Vacuum Secondaries....
  For your Ignition use a MSD vacuum advance, with an adjustable curve kit. MSD usually supplies a spring kit. Set your Base timing at 12*-16* and total of 32* all in at 2200-2500RPM. The Cam has really No power over 5500RPM. So setting the timing at the lower end of the specs, will give you the punch you'll need. If you get any pinging just back the base timing down.....
  Spark Plugs: Go one step colder on your Spark Plug heat range, for an Automatic. Or 2 steps colder for a Manual Trans.... Set the gap at .032-.035 no bigger...Good Luck....

Bob  

skyeking skyeking
Addict | Posts: 2738 | Joined: 08/09
Posted: 04/11/13
06:16 PM

Laugh  Hi Bob and gang,
  For an easy life with absolute realiablity I set my plugs [NGK 5s
  at 32/1000" and the timing with a 650 B/G at 10*/32 and have never
  needed to touch these settings in 6 years..I get 35000 out of the
 
plugs which I terminate with new replacements.  
skyeking

pepsi1 pepsi1
Guru | Posts: 1718 | Joined: 09/11
Posted: 04/12/13
04:34 AM

Skyeking
We think alike. I always used
Autolite, or NGK spark plugs.
I never liked Champion plugs.
  Back in the day a friend
had the ground electrode fall
off, and it scuffed the bore
bad enough it had to be sleeved.
  The only thing Champions are
good for is a lawn mower.lol...
  I don't believe in gapping a
spark plug to .060. The flame
it makes with a 14:5:1 race
prepped head and combustion
chamber, the spark can actually
get blown out, by the incoming
intake charge. No Bull Just Fact..

Bob  

skyeking skyeking
Addict | Posts: 2738 | Joined: 08/09
Posted: 04/12/13
03:44 PM

Hi Bob,
  Yes, I have heard of that and it can be a real PITA....Skyeking.  
skyeking

Dave632 Dave632
Addict | Posts: 2222 | Joined: 07/08
Posted: 04/12/13
03:47 PM

Bob I also used NGK plugs for racing.
I was told by MSD that I could run a gap of .080 with the MSD setup I had.
That was with the 7AL, the matching HVAC coil and MSD distributor. It was a mean setup and could jump a spark 6-12".
I never ran it that big but I did run it at .060 with no problems even when I over revved the motor near 8000.
I don't think a regular ignition system could do that though.  
[[SUPPORT AMERICAN CARS, STOMP A RICE CAR TODAY.]]

skyeking skyeking
Addict | Posts: 2738 | Joined: 08/09
Posted: 04/12/13
11:46 PM

Hi Dave 632,
  We go back to the practice of experimentation.
   Time and $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$..  
skyeking

jonser jonser
New User | Posts: 3 | Joined: 04/13
Posted: 04/19/13
05:15 AM

Good Morning,
I've primed the oil pump, pulled the plugs (sprayed inside cylinders) and turned it over several times (15 second intervals) and have oil pressure and oil coming out of top of push rods. All good except one cylinder sprayed a little murky oil/wetness on side of header, approx. 3 drops.
Anything to worry about?
Next step is to connect water, fuel and start. Help please.
thank you  

jonser jonser
New User | Posts: 3 | Joined: 04/13
Posted: 04/19/13
05:18 AM

thank you very much, a little over my head but, i'll get some help. I've primed the oil pump, pulled the plugs (sprayed inside cylinders) and turned it over several times (15 second intervals) and have oil pressure and oil coming out of top of push rods. All good except one cylinder sprayed a little murky oil/wetness on side of header, approx. 3 drops.
Anything to worry about?
Next step is to connect water, fuel and start. Help please.
thank you  

redneckjoe69 redneckjoe69
Addict | Posts: 2337 | Joined: 03/10
Posted: 04/19/13
12:04 PM

the murky oil is probably just condensation from sitting.    id throw some fresh oil in there and give it a shot.   JMO.  

pepsi1 pepsi1
Guru | Posts: 1718 | Joined: 09/11
Posted: 04/19/13
03:53 PM

Icon QuoteDave632:
Bob I also used NGK plugs for racing.
I was told by MSD that I could run a gap of .080 with the MSD setup I had.
That was with the 7AL, the matching HVAC coil and MSD distributor. It was a mean setup and could jump a spark 6-12".
I never ran it that big but I did run it at .060 with no problems even when I over revved the motor near 8000.
I don't think a regular ignition system could do that though.


Dave was the .060 that with the juice? I remember when Holley came out with their set-up. The speed shop in NJ had one on display. They set the gap at "1" inch and the salesman burned a hole in his business card....

Dave still counting on all the parts that were stolen. The State Police finished up on Sunday. Then we had the bombing in Boston on Monday. So it will be awhile. Mad Over $13,000 just in Holley HP's. I'm going to post my loseswhen I get done. They are headed for Florida.

Bob  

skyeking skyeking
Addict | Posts: 2738 | Joined: 08/09
Posted: 04/19/13
05:00 PM

Hi Bob and the gang  
skyeking

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