GM has a new ZZ5 engine

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Nov 5, 2013 | 09:49 PM

qwank

Thread Starter

Le Mans Master

Joined: Feb 2011

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From: Southern NH

GM has a new ZZ5 engine

announced at SEMA, new ZZ5 and zz383 engines. looks like the ZZ5 is going to be around 400hp and come standard with the fast burn heads.

https://theblock.com/news/introducin...rmance-zz5-350

Pace has it for just under $6K

http://paceperformance.com/i-1490681...te-engine.html

Nov 5, 2013 | 10:44 PM

DZRick

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Joined: Jun 2005

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From: Syracuse NY

I didn't see any spec.'s on this and I'm curious what the differences are between the ZZ5 and the ZZ430 which is rated at 430 hp/430 ftlbs.

I've got a ZZ430 clone and it cost about 6k with the extras needed.

Nov 5, 2013 | 11:04 PM

cv67

Team Owner

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From: altered state

St. Jude Donor '05

The 450hp 383 sounds like a good one, drop it in and go with a warranty
Thats plenty of power for most street cars

Nov 6, 2013 | 08:10 AM

minitech

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One thing that may happen is the old school ZZ4 price may come down.

Nov 6, 2013 | 12:28 PM

qwank

Thread Starter

Le Mans Master

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From: Southern NH

They redesigned the fast burn heads and are using the blue ls3 valve springs, so maybe a slight can design also. I'm still going to go with a zz4 if I go 350, but definitely like the new zz383 if I go that route

Nov 6, 2013 | 01:36 PM

ezobens

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From: Wauconda IL

My guess is the ZZ4 will be phased out when the ZZ5 becomes readily available (Same thing as the ZZ3 when the ZZ4 came out).

Nov 7, 2013 | 08:16 PM

fleming23

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From: Dallas Georgia

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Seems a little expensive if you ask me, considering what you get.

Nov 7, 2013 | 10:48 PM

Texas69

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From: Toomers Corner...You mad?

Quote:

Originally Posted by fleming23

Seems a little expensive if you ask me, considering what you get.

You are buying a warranty, piece of mind, and dyno proven power from GM rather your local mechanic.

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Nov 8, 2013 | 02:13 AM

billla

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From: Seattle WA

St. Jude Donor '14

It's still the FastBurn heads, which are basically an early version Vortec - it's a nice upgrade, but doesn't seem to be anything special. Good engine, but the price is pretty darn high for what's there.

Nov 8, 2013 | 02:17 AM

#10

Shark Racer

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From: San Jose CA

Quote:

Originally Posted by billla

Yup... good for the guys who want to cut a check and have a dealer install it, then have a couple years of "worry free" miles.

Nov 8, 2013 | 08:16 AM

#11

gdh

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From: Canada

If they start to blow out the ZZ4's I'm picking one up and will do a few mods.

Dec 8, 2013 | 08:40 AM

#12

project C4

Pro

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From: Texas

I don't think that motor will phase out the zz4. The ZZ5 is really no different than the old 385 crate motor except for the blue valve springs.
The zz4 still has standard intake instead of a vortec intake.
also the zz4 has the much more user friendly small "D" exhaust port.

I like the fast burn heads but for various reasons they have never been a slam dunk for me.

Dec 8, 2013 | 02:03 PM

#13

MotorHead

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From: Who says "Nothing is impossible" ? I've been doing nothing for years.

Quote:

Originally Posted by billla

it might be a nice upgrade to some but with all the big inch small blocks out there that bolt right in why would you buy this ZZ5. At 400 hp gross you are looking at less than 300 RWHP, big deal.

You can get a 383 or go the 406ci route for about the same price that will smoke this little 350ci. I am surprised that they even bothered putting out another version when it's not numbers matching and from the outside a 383ci or correct version of a 406ci you wouldn't be able to tell the difference until you hit the happy pedal

Dec 8, 2013 | 02:29 PM

#14

qwank

Thread Starter

Le Mans Master

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From: Southern NH

yeah it's pretty much a renamed fast burn 385.

I'd still prefer the ZZ4.

Dec 8, 2013 | 05:11 PM

#15

diehrd

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From: New York

The new LS style valve springs are installed , only difference to the early fast burn .

And why they refuse to put the zz430 up for retail sale to anyone and everyone makes no sense to me at all..That 385 motor needs a cam , intake and 1.6 rollers and your now a zz430.

Anyway I may be selling my zz430 clone sooner or later ..