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Can you identify this engine?


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CrispyCleen

Club Member

Sat 12 Jan 19 17:54

Re: Can you identify this engine?


So, a development.

I found the casting number (10243880) which apparently is a 350 small block from 1995-1999. As quoted from www.chevyhardcore.com
10243880 Small block V8 1995-1999 350, 4 bolt, crate engine and ZZ4, roller cam, one piece rear seal”

However, I’m struggling to find the application. Specifically where it actually came from. The other side of the block to the casting number has the following numbers and letters:

Image

But if you look up the HE prefix, it comes up as either a 1965 327 manual from a ‘vette or a 1969 350 Powerglide from some other GM.

So I think I’m missing something. I can’t find any stamped ID numbers or ID plate. Any help?

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VetteWeekend

Webmaster

Sat 12 Jan 19 23:37

Re: Can you identify this engine?


‘HECHO EN MEXICO’

A crate engine ‘Made in Mexico’


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L88

Club Member

Sun 13 Jan 19 17:20

Re: Can you identify this engine?


It's a crate engine therefore has no specific application. It is 100% not a 65 or 69 engine.

Nothing wrong with a ZZ4 motor just looks wrong under your hood.

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CrispyCleen

Club Member

Mon 14 Jan 19 20:21

Re: Can you identify this engine?


Banghead Banghead Banghead
Doh Doh Doh

Ok, at least I know now. So, what do we know about a ZZ4 engine? Anybody have/had one? Perks and pitfalls? Quirks and characters?

My only problem with it at the moment is how far back it sits in the engine bay. But as long as it runs and sings (which it does Laughing ) I’m happy.

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kentvette

Club Member

Tue 15 Jan 19 09:20

Re: Can you identify this engine?


Seems to me as though it sits where all Corvette engines do.


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VetteWeekend

Webmaster

Tue 15 Jan 19 11:00

Re: Can you identify this engine?


CrispyCleen wrote (View Post):
Banghead Banghead Banghead
Doh Doh Doh

Ok, at least I know now. So, what do we know about a ZZ4 engine? Anybody have/had one? Perks and pitfalls? Quirks and characters?

My only problem with it at the moment is how far back it sits in the engine bay. But as long as it runs and sings (which it does Laughing ) I’m happy.


The ZZ4 is a performance variant of the crate engine, so you’ve identified the block and if it’s a ZZ4 it would come with other goodies i.e roller can and ally heads etc. Here’s the spec from Summit...

Description: These Chevrolet Performance ZZ4 350 C.I.D. 355 hp turn key crate engines include all of the necessary parts to get your engine running. With over 405 ft.-lbs. of torque, the ZZ4s are the best way to put an aluminum head, 4-bolt main block, roller cam, high performance small block between your favorite fenders. The aluminum angle-plug cylinder heads have screw-in rocker studs, 1.94 in. intake and 1.50 in. exhaust valves, and 58cc combustion chambers that yield a crisp and responsive 10:1 compression ratio. Also included are lightweight valve spring retainers, radiused valve seats, and valve stem seals to help keep the oil where it belongs. To complement the cylinder head design, we've incorporated a billet steel hydraulic roller tappet camshaft with a .474 in. intake and .510 in. exhaust valve lift. The combination makes 355 hp at 5,250 rpm and has that great-sounding musclecar idle, with just enough lope to let people know that these are no station wagon engines.

Additional features include:

* HEI distributor with an ignition timing advance curve developed for performance
* Spark plugs and wire set
* Dual-plane aluminum intake manifold
* Holley 770 cfm carburetor
* Chrome air cleaner kit
* Fuel pump
* 8 in. harmonic balancer
* 12.75 in. automatic transmission flexplate
* Starter
* Cast iron water pump
* Serpentine accessory drive pulley system for air-conditioned applications

If you’ve got all that and it’s a ZZ4 then you’ve got a good deal, I would have liked one in my old ‘75.


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VetteWeekend
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'58 Apache - The shop truck - Sold!
'91 ZR-1...For Fun! - The Return of Purple Haze!
'72 GMC G15 'Shorty' - Rolling Heavy.
www.kickson66.uk - For Official Gas Monkey Garage, DPG, OCC Merch & More.

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Daytona Vette

Club Member

Tue 15 Jan 19 13:07

Re: Can you identify this engine?


ZZ4 also has aluminum pistons and a forged steel crank.

ZZ4 or not it needs to look like a Vette under the bonnet, nb. if it is a serpentine you may have a reverse flow water pump.


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Barry - Daytona Vette

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