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Posted
1 hour ago, transam said:

Yes, but Chevy have a 383ci small block that is not a stroker, called ZZ383, 100% new block and crank to provide 383ci. It is 425hp out of the box...

the ZZ383 uses the 400ci 3.75 crank doesn't it ?

Posted

Wow - that will great when finished.  But I guess for trips to shows only, as will be tough to registered.

 

I see Thai owned classics on the roads when going to shows - no Thai reg plates, but the police don't when the travel in packs.

  • Confused 1
Posted (edited)
6 minutes ago, Don Mega said:

No its not the 400 crank or no it is not a 3.75" crank ?

From memory the block is brand new with a 4" bore, the crank is new to give 383ci.

Have a read.....https://www.chevrolet.com/content/dam/chevrolet/na/us/english/index/performance/resources/installation-guides/crate-engines/01-images/zz383-deluxe-crate-engine-19301295.pdf

Edited by transam
Posted
Just now, transam said:

From memory the block is brand new with a 4" bore, the crank is new to give 383ci.

I was wrong,  the ZZ383 runs a 3.8" which an OEM forged piece but also sold through the likes of JEGS and SUMMIT as a 383 stroker crank.

 

 4" bore is same as 350 so nothing special there and the only details I can find on the actual block is that it is a 1986+ block that has 1 piece rear seal with 4 bolt mains and is clearance for the 3.8" crank...

 

It is a stroker motor.

Posted
1 minute ago, Don Mega said:

I was wrong,  the ZZ383 runs a 3.8" which an OEM forged piece but also sold through the likes of JEGS and SUMMIT as a 383 stroker crank.

 

 4" bore is same as 350 so nothing special there and the only details I can find on the actual block is that it is a 1986+ block that has 1 piece rear seal with 4 bolt mains and is clearance for the 3.8" crank...

 

It is a stroker motor.

It does not have a 400 crank...Plus, we refer to a stroker as putting a 400 crank in a 350 block as an upgrade, this is a factory new assembly....

Posted
Just now, transam said:

It does not have a 400 crank...Plus, we refer to a stroker as putting a 400 crank in a 350 block as an upgrade, this is a factory new assembly....

it is a 3.8" stroke crank in a clearance 350 block.

 

The crank (part # 12489436) is sold aftermarket as a stroker crank....

 

FWIW a 400 crank (2.75" stroke) into a 350 block (4.0" bore) does not equal 383 cu.

 

 

 

 

 

  • Like 1
Posted
Just now, Don Mega said:

it is a 3.8" stroke crank in a clearance 350 block.

 

The crank (part # 12489436) is sold aftermarket as a stroker crank....

 

FWIW a 400 crank (2.75" stroke) into a 350 block (4.0" bore) does not equal 383 cu.

 

 

 

 

 

A 400 crank is 3.75, ZZ383 is a NEW 3.8 crank, 350 block is 4.00 bore, ZZ383 is a 4.005. All parts are brand new. I think the readers now understand so leave it there eh..The topic does not warrant more on the subject... ????

  • Sad 1
Posted

The Chevy 383 Stroker is an 8 cylinder engine that uses the popular production Chevrolet 350 block and a slightly altered Chevrolet 400 crank. A stock 350 has a piston stroke length of 3.48 inches. The 400 crank changes the 383 to a total stroke of 3.75 inches. This produces a total displacement of 383 cubic inches (thus the name 383).

http://www.383stroker.com/

One day you will either ...

A. run out of bullets

B. run out of feet

Posted
49 minutes ago, transam said:

A 400 crank is 3.75, ZZ383 is a NEW 3.8 crank, 350 block is 4.00 bore, ZZ383 is a 4.005. All parts are brand new. I think the readers now understand so leave it there eh..The topic does not warrant more on the subject... ????

Yeah I already mentioned the crank is a 3.8"... did you miss that part.

 

It is called a stroker motor whether you agree or not.

 

Cheers, have a great day !!

 

 

  • Haha 1
Posted (edited)
22 minutes ago, canthai55 said:

The Chevy 383 Stroker is an 8 cylinder engine that uses the popular production Chevrolet 350 block and a slightly altered Chevrolet 400 crank. A stock 350 has a piston stroke length of 3.48 inches. The 400 crank changes the 383 to a total stroke of 3.75 inches. This produces a total displacement of 383 cubic inches (thus the name 383).

http://www.383stroker.com/

One day you will either ...

A. run out of bullets

B. run out of feet

350 block is 4" bore, 400 block is 4.25" bore hence the 400 crank in a 350 block does not give 383ci.

 

bore x bore x stroke x 0.7854 x number of cylinders = cubic capacity.

4" x 4" x 3.75 x 0.7854 x 8 = 376.992 cubic inches....... well shy of 383.

 

And for transman, even the chevrolet blurb on the zz383 says stroker crank.

 

Chevrolet ZZ383

 

stroker.jpg

 

Edited by Don Mega

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