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Post Info TOPIC: zz4 350 motor
84MCSS


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zz4 350 motor
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Block Part Number:

 

10105123

  

Block Type:

 

Cast iron with 4-bolt main caps

  

Bore x stroke (in):

 

4.00 x 3.48

  

Camshaft duration (@.050 in):

 

208 degree intake / 221 degree exhaust

  

Camshaft lift (in):

 

.474 intake / .510 exhaust

  

Camshaft Part Number:

 

10185071

  

Camshaft type:

 

Steel hydraulic roller

  

Compression ratio:

 

10:1

  

Connecting Rod Part Number:

 

10108688

  

Connecting rods Type:

 

Powdered metal steel

  

Crankshaft Part Number:

 

12556307

  

Crankshaft Type:

 

Forged steel

  

Cylinder head Part Number:

 

12556463

  

Cylinder head Type:

 

Aluminum; 58cc chambers

  

Displacement (cu in):

 

350

  

Engine Name:

 

ZZ4 350:

  

Engine type:

 

Chevy small-block V-8

  

Ignition timing:

 

10 degree BTDC @ 800 rpm 32 degree total @ 4000 rpm with vacuum advance disconnected

  

Maximum rpm:

 

5800

  

NOTE:

 

Distributor with melonized steel gear MUST be used with long blocks and partial engines with steel camshafts, or engine damage will occur.

  

Piston Part Number:

 

10159436

  

Pistons Type:

 

High-silicon aluminum with offset pins

  

Recommended fuel:

 

92 octane

  

Rocker arm ratio:

 

1.5:1

  

Rocker arms Part Number:

 

10089648

  

Rocker arms Type:

 

Stamped steel

  

Valve size (in):

 

1.94 intake / 1.50 exhaust



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paul c


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and?

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383malibu


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it runs lol

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84MCSS


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someone was asking for the info on it,so i posted it,

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383malibu


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sensible

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paul c


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oh, ok.

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84MCSS


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Can i run nos on this motor? If i can how much?



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Project-RS


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100 shot should be safe. my friends with imports run that alot



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84MCSS


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Thats what i was thinking to ray,But i need to know because of the rods and pisdons i have in it,

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wildchild


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I wouldn't .....But if you do stay small,use high octane fuel and adjust your timing accordingly...

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84MCSS


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Should i just use some higher octane fuel first?I use super already

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91notchback


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only spray on a race fuel at that point jim and most id reccomend is a 125 hit ...and make sure you retared that timing back accordingly cause if not that will cause alot of damage

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paul c


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not with those pistons.

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Project-RS


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the motor should be good. try running slicks? im sure the et's will drop

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84MCSS


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Yeah I will get some tires someday,

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wildchild


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Jim you won't believe what a difference tires will make...And if the tranny is have issues too then nitrous won't help you anyways..

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84MCSS


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No the trans is new with a converter,

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wildchild


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Ok well all the same put some slicks on it and you probably break the seat..tree



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84MCSS


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Now that sounds like fun lol

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Project-RS


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recliner as you drive.



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wildchild


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Broke mine LOL

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bdj406


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i broke the seat in the 57 an that sucked laying on the back seat going down the dragstrip

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84MCSS


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bdj406 wrote:

i broke the seat in the 57 an that sucked laying on the back seat going down the dragstrip

 Wish i had the footage of that B lol



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Reis Racing


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tires 1st then nitrous, cause if u can't use the NOS of the line without hooking then the NOS is useless.

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62BELAIR


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I was there the day brian broke the seat, fkn funniest thing all day, still lmfao

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LeadFootedRacer


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agreed... i was there too... almost got the front tires up, but i think that may of had something to do with the weight transfer... putting the driver's weight in the back seat during the launch may add to your chances of a wheels up launch. lol

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savageracer6969


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paul c wrote:

not with those pistons.

 

 why not did a 150 shot on stock rods,cast crank and 13 to 1 hypers and used 110 octane never blew anything up



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paul c


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savageracer6969 wrote:
paul c wrote:

not with those pistons.

 

 why not did a 150 shot on stock rods,cast crank and 13 to 1 hypers and used 110 octane never blew anything up

 if that engins has the powdered metal rods that would be a risk. the stock crank will hold up fine. a 150 shot would be ok on those pistons but like you did it needs race fuel to do it.

 



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murphinator


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back in the early 90's I sprayed my monte ss ( the black one my uncle owns now- I posted pics in the past) sprayed it with a 125 wet shot every wednesday night and the stock 305 took it well

also sprayed my silver v6 gtp with an .86 jet , gotta be around a 200 shot , little bitch would trap 118 lol ,2 owners later its still going strong

I wouldnt be scared of a 100 shot on that engine as long as you run race fuel and pull about 4* timing (2* per 50 shot) and make sure you have a wideband on it to ensure your afr is around 12 to 1 to be safe NA - they are so cheap to buy now its protecting your investment in your engine

of course any time your making more hp your putting more stress on components so be prepared for the worst but with proper precautions it should take many bottles of spray 1/4 mile at a time

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