C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

ZZ454 engine install help

Thread Tools
 
Search this Thread
 
Old May 26, 2009 | 11:35 AM
  #41  
68/70Vette's Avatar
68/70Vette
Team Owner
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2004
Posts: 40,352
Likes: 787
From: Redondo Beach, California
Default

Originally Posted by FlyViper
Will a '71 stock rearend and M-21 trans hold up to a stock ZZ454 with normal street tires? I definitely want to put in a TKO-600 at some point, but want to know if putting a ZZ454 in my car w/ the stock driveline is a bad idea. I won't put slicks on the car and I'm not taking it to the track...it will be purely driven on the street. I figure if I "ask too much," the tires are just going to spin anyways, thus not catching and snapping the diff in half. Is this a correct/safe assumption or can I not put this engine in my car until I get a TKO? Thanks guys!
Summarizing posts about this issue, posts by people with actual experience...the stock diff/rear suspension with street tires will start to be marginal with 620 HP, but if you don't power shift the tranny I think the experts will agree your diff will stay alive.

Also, consider the Richmond 5 speed. It comes with a 5th gear at 1:1 or a 5th gear at 0,77:1.
Reply
Old May 26, 2009 | 07:40 PM
  #42  
FlyViper's Avatar
FlyViper
Racer
10 Year Member
 
Joined: Apr 2008
Posts: 436
Likes: 2
Default

I'm planning on keeping the engine stock for a while and maybe down the road do some minor upgrades, but I don't plan on going anywhere past low 500's on street tires. I also will never powershift. I'd love to get a Richmond right now, but I don't have enough $ for both, so the Richmond will have to wait (although that's the next big upgrade I'll do whenever the time is right).

Also, anyone still know about the water pump issue? And also, is my conclusion about the fuel pump correct? Thanks a bunch guys!
Reply
Old May 27, 2009 | 04:19 PM
  #43  
lfgmike's Avatar
lfgmike
Thread Starter
Intermediate
 
Joined: Feb 2009
Posts: 37
Likes: 0
From: westmont illinois
Default

Originally Posted by FlyViper
I'm planning on keeping the engine stock for a while and maybe down the road do some minor upgrades, but I don't plan on going anywhere past low 500's on street tires. I also will never powershift. I'd love to get a Richmond right now, but I don't have enough $ for both, so the Richmond will have to wait (although that's the next big upgrade I'll do whenever the time is right).

Also, anyone still know about the water pump issue? And also, is my conclusion about the fuel pump correct? Thanks a bunch guys!
I have had my 69 w/ZZ454 for about 3 weeks now. My car is a coupe, that came with L-36(427 4bbl) and 4spd. My set up is original. I have these upgrades; a Holley 870, headers, and upgraded ignition. I've put about 100 miles on it, and I can say the thing runs great. I cannot say I've given it real punishment, kinda keeping the tach below 3500-4000. I had an issue with the alternator(had to replace it), and my hood keeps vibrating loose- scary when that pops up at 60 mph!!!
Reply
Old May 27, 2009 | 06:00 PM
  #44  
FlyViper's Avatar
FlyViper
Racer
10 Year Member
 
Joined: Apr 2008
Posts: 436
Likes: 2
Default

my hood keeps vibrating loose- scary when that pops up at 60 mph!!!
Whoa...so what's causing that? Also, do you have any idea which air filter, water pump, fuel pump your mech used? Naturally I forgot to ask him that stuff when I called him, but just thought I'd ask before I bother him.
Reply
Old May 28, 2009 | 08:17 AM
  #45  
lfgmike's Avatar
lfgmike
Thread Starter
Intermediate
 
Joined: Feb 2009
Posts: 37
Likes: 0
From: westmont illinois
Default

Originally Posted by FlyViper
Whoa...so what's causing that? Also, do you have any idea which air filter, water pump, fuel pump your mech used? Naturally I forgot to ask him that stuff when I called him, but just thought I'd ask before I bother him.
Im looking at my reciept, here's what it reads: water pump-SHORT DESIGN #WP366, high volume fuel pump CHROME #12835.

We had to get a new hood(no clearance withe the original), I went thru Ecklers for that, and the problem is that the connecters(same hardware from original hood)don't seem to latch firm enough, so the hood will pop up, and when going over 60mph, the L-88 hood has that high part that makes great lift
Reply
Old May 31, 2009 | 01:54 PM
  #46  
FlyViper's Avatar
FlyViper
Racer
10 Year Member
 
Joined: Apr 2008
Posts: 436
Likes: 2
Default

I can't find that water pump part number anywhere (not even sure of manufacturer). I did find the fuel pump though, so thanks for that!

Does anyone know what size pilot shaft the ZZ454 uses? After I stopped being search-impaired on Jegs, I've found several short water pumps, but they have varying pilot shaft sizes.
Reply




All times are GMT -4. The time now is 02:00 AM.

story-0
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-1
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-2
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-3
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-4
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-5
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-6
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-7
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-8
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-9
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE