ZZ6 EFI Deluxe into my 92 RS - Third Generation F-Body Message Boards

Go Back  Third Generation F-Body Message Boards > Tech Boards > Engine Swap
Reload this Page >

ZZ6 EFI Deluxe into my 92 RS

Engine Swap Everything about swapping an engine into your Third Gen.....be it V6, V8, LTX/LSX, crate engine, etc. Pictures, questions, answers, and work logs.

ZZ6 EFI Deluxe into my 92 RS

Old 12-25-2018, 12:06 PM
  #1  
Junior Member
Thread Starter
 
Join Date: Dec 2002
Location: Southern Alabama
Posts: 21
ZZ6 EFI Deluxe into my 92 RS

My car needs a new engine, my trusted mechanic says the 305 TBI has a bad head gasket after 220k and I don't want to fix it as I would like to have more power, I was looking at the GM crate engines and noticed they have a ZZ6 EFI kit available now, I really like the idea of having a GM designed replacement installed in my car, I know there are cheaper ways but I have plenty of money, I just want a good reliable factory engine, anybody know much about this kit? I can't find much online about it.

https://www.chevrolet.com/performanc...zz6-efi-deluxe

Last edited by FastChick; 12-25-2018 at 12:14 PM.
FastChick is offline  
Old 12-25-2018, 04:37 PM
  #2  
Supreme Member
iTrader: (28)
 
Drew's Avatar
 
Join Date: Jul 1999
Location: Salina, KS
Posts: 17,293
Re: ZZ6 EFI Deluxe into my 92 RS

Hmm... A little over $7,000 for 420hp. A ZZ short block runs $2,200. Fast Burn heads, another $1,600. Call it $4,000 for the long block. Is a basic GM universal engine management system (the EFI computer) and a multi-port intake system worth $3,000? As a bargain hunter, I'm not really seeing it as being a great buy. My gut tells me that a junkyard 5.3L, or even a sub-$2,000 L31 crate motor, with some careful tweaks could beat the HP/Dollar. It's very GM that they put this all together and then priced it out of the reach of the target market. Aside from the cylinder heads, it's a very basic setup, and the heads are old technology at this point.

I think if I wanted what that package represents, I could probably piece together something that would do the same thing for a lot less money. It just wouldn't come in kit form with all the bugs worked out, and a price tag to match.
Drew is offline  
Old 12-25-2018, 07:57 PM
  #3  
Junior Member
Thread Starter
 
Join Date: Dec 2002
Location: Southern Alabama
Posts: 21
Re: ZZ6 EFI Deluxe into my 92 RS

Originally Posted by Drew View Post
I could probably piece together something that would do the same thing for a lot less money. It just wouldn't come in kit form with all the bugs worked out, and a price tag to match.
Well convenience comes at a price, I don't want to piece it together and then have to "hope" it runs good just to save a few bucks, I'm also planning on driving the car cross country soon and want peace of mind it's going to run flawlessly.
FastChick is offline  
Old 12-25-2018, 08:09 PM
  #4  
Moderator
iTrader: (1)
 
Abubaca's Avatar
 
Join Date: Feb 2001
Location: JAMESTOWN, NC
Posts: 6,980
Car: 1989 Iroc
Engine: 383 TPI
Transmission: TKO600
Axle/Gears: 3.27
Re: ZZ6 EFI Deluxe into my 92 RS

I don't think this is too much to pay, given two factors. First, you obviously have to be able to afford the price. Second, you should be educated, and understand that if you were willing to piece together the system, you could get more power for less money. If you have taken those two things into account, and still like the zz6 EFI for $7000 or whatever the given price, then I think it's a great option.

Last edited by Abubaca; 12-25-2018 at 08:19 PM.
Abubaca is offline  
Old 12-26-2018, 08:01 PM
  #5  
Supreme Member
iTrader: (12)
 
aliceempire's Avatar
 
Join Date: Nov 2008
Location: Milwaukee
Posts: 1,132
Car: 92 Firebird, 77 Trans Am SE, 86 Z28
Engine: 5.7 TPI, T/A 6.6, 5.0 LT1
Transmission: T-5, TH350, T-5
Axle/Gears: 3.08 posi, 3.23 posi, 3.23
Re: ZZ6 EFI Deluxe into my 92 RS

It's a bit expensive but not TOO out of line for a factory backed and tuned engine. My concern would be exhaust, drivetrain and incidentals (fuel pump, coolant hoses, accessories, air intake, etc) that would bring initial cost up well beyond the ~400hp for ~$7000. Take that into account as well. Also if you're farming out the labor (ie your "Trusted Mechanic") then the costs continue to go up. $7000 is long in the rear view mirror at that point. Just something to think about.
aliceempire is offline  
Old 12-27-2018, 10:21 AM
  #6  
Junior Member
Thread Starter
 
Join Date: Dec 2002
Location: Southern Alabama
Posts: 21
Re: ZZ6 EFI Deluxe into my 92 RS

Thanks for the reply's, and yes I know there will be other cost's involved, I grew up in a garage and could probably do the work myself, I just don't have the time, and my trusted mechanic is also by brother in law who owes me a lot of favors so the work is free!!!
FastChick is offline  
Old 12-27-2018, 10:41 AM
  #7  
Senior Member
iTrader: (2)
 
BizJetTech's Avatar
 
Join Date: Sep 2016
Location: Sunny Florida
Posts: 950
Car: 88 Formula 350
Engine: L98
Axle/Gears: 3.27
Re: ZZ6 EFI Deluxe into my 92 RS

A 24 month warranty from GM for a BRAND NEW 420 HP engine with EFI..........You cant go wrong !!
I think it's a good deal and if I was looking to replace an engine that's what I'd get !!
BizJetTech is offline  
Old 12-27-2018, 10:54 AM
  #8  
Supreme Member
 
dmccain's Avatar
 
Join Date: Mar 2014
Location: South Ms
Posts: 2,673
Car: 89 Pontiac
Engine: 5.0 FI
Transmission: 700R4. Shift kit+S10 TC
Axle/Gears: 3.73s Posi
Re: ZZ6 EFI Deluxe into my 92 RS

Vortec crate engine + new fuel pump + afpr + intake+ chip burn and you save lots of $ and probably add 75 hp. Were talking probably $2800 on these parts...not bad.
dmccain is offline  
Old 12-28-2018, 11:16 AM
  #9  
Supreme Member
iTrader: (15)
 
QwkTrip's Avatar
 
Join Date: Mar 2001
Location: Illinois, USA
Posts: 5,312
Car: '89 Firebird
Engine: 2.8L High Output
Transmission: T56
Axle/Gears: 3.73
Re: ZZ6 EFI Deluxe into my 92 RS

Originally Posted by FastChick View Post
I really like the idea of having a GM designed replacement installed in my car
That's not a replacement, that's a full-on engine swap. New ECM, new harness, new fuel system, new intake.... Heck, I'm not even sure it will clear the hood. Same amount of work as swapping in an LS.
QwkTrip is offline  
Old 12-28-2018, 04:03 PM
  #10  
Supreme Member
 
Join Date: Jan 2003
Posts: 2,659
Re: ZZ6 EFI Deluxe into my 92 RS

they're still running that rinky dink little ZZ4 cam and claiming 420 hp? suffice it to say I have my doubts...

I'm running essentially the same engine, except AFR heads (which are at least as good) and a little bigger cam, along with a Minram intake and I know I'm not making 420 hp... the car is still very fast, but 420 hp? dont think so...

unless they're still rating it as gross hp with no accessories hooked up.

though I will say... I'm loving those rocker covers. I may have to get me a set...
ULTM8Z is offline  
Old 12-28-2018, 06:25 PM
  #11  
Supreme Member
iTrader: (28)
 
Drew's Avatar
 
Join Date: Jul 1999
Location: Salina, KS
Posts: 17,293
Re: ZZ6 EFI Deluxe into my 92 RS

I'd also wonder about the ECM system they're using. Is it still the MEFI fuel injection system? How friendly is the wiring harness going to just drop into a thirdgen and cooperate with the transmission and all the other systems in the car? No doubt it's like most 'Universal' solutions, one size fits all equally well or poorly. In practice, I'd expect that integrating the EFI controller into the rest of the car would be just as complicated as any other EFI swap.

I wouldn't overestimate what you're getting for the money. If anything there are unacknowledged difficulties involved.
Drew is offline  
Old 12-30-2018, 12:28 AM
  #12  
Junior Member
 
davidsra's Avatar
 
Join Date: Jul 2008
Location: Abilene, TX
Posts: 16
Car: '91 RS
Engine: ZZ6
Transmission: T56
Axle/Gears: Stock 2.73
Re: ZZ6 EFI Deluxe into my 92 RS

It won't clear the hood. I swapped my 305 TBI for a ZZ6 and a Holley Sniper EFI and needed to get a 2 1/2" cowl hood. Not a bad thing as it looks good. I enjoy the extra HP from the ZZ6 as it is a massive step up from my '91 RS 305.
davidsra is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Ozzy1992z28
Engine Swap
9
05-13-2018 10:58 PM
davidsra
TBI
19
01-26-2018 08:30 AM
peterc005
Tech / General Engine
54
12-28-2017 03:20 AM
Alaska Hwy 1Le
Engine Swap
23
01-02-2017 05:30 PM
Ashton W
Engine Swap
5
06-08-2016 02:48 PM


Thread Tools
Search this Thread
Quick Reply: ZZ6 EFI Deluxe into my 92 RS


Advertising
Featured Sponsors
Vendor Directory

Contact Us Advertising Cookie Policy Privacy Statement Terms of Service

© 2018 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: