C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

zz4 replacing L98 (newb help)

Thread Tools
 
Search this Thread
 
Old Sep 21, 2004 | 10:29 PM
  #1  
Regg86Vett's Avatar
Regg86Vett
Thread Starter
6th Gear
 
Joined: Jun 2004
Posts: 6
Likes: 0
From: jamaica ny
Default zz4 replacing L98 (newb help)

Been trying to find some info on the zz4 motor inorder to replace my L98. For those who done this switch. Newb question. Can the original or upgraded tpi system(such as accel or others) even ram sysems fit on this engine. Does the harness and computer remain the same.

Can anyone give me a breakdown on whats needed with this block(from gm-parts depot) to drop in my ride 86 vette auto tran coupe.

Sorry for the newb question but info on the zz4 just talk about the block naked with a carb application, want to know about those whom put a tpi system on it.

Thanks
Regg929@aol.com
Reply
Old Sep 21, 2004 | 10:49 PM
  #2  
chucks88's Avatar
chucks88
Safety Car
15 Year Member
 
Joined: Oct 2001
Posts: 4,763
Likes: 1
From: Connectivette
Default

I'm planning on buying a ZZ4 shortblock in the future and bolting on my heads and intake. So yes it should fit however I know others will offer more info.
Reply
Old Sep 22, 2004 | 12:09 AM
  #3  
Corvette0096's Avatar
Corvette0096
Race Director
20 Year Member
Liked
 
Joined: Aug 2000
Posts: 11,506
Likes: 4
From: Vancouver,Wa.
Default

Originally Posted by Regg86Vett
Been trying to find some info on the zz4 motor inorder to replace my L98. For those who done this switch. Newb question. Can the original or upgraded tpi system(such as accel or others) even ram sysems fit on this engine. Does the harness and computer remain the same.

Can anyone give me a breakdown on whats needed with this block(from gm-parts depot) to drop in my ride 86 vette auto tran coupe.

Sorry for the newb question but info on the zz4 just talk about the block naked with a carb application, want to know about those whom put a tpi system on it.

Thanks
Regg929@aol.com
Here are the thing that won't work Harmonic balancer. Water pump. One of the bolts with have to be grounded down on the water pump. Super ram will bolt up fine. all the plug holes are there. You will be fine. sell the intake dist and water pump and ballancer you wont need them. Oh one more thing use the gear off the new dist on your old dist.
Reply
Old Sep 22, 2004 | 10:08 AM
  #4  
kwik_ta's Avatar
kwik_ta
Race Director
15 Year Member
 
Joined: Sep 2004
Posts: 13,793
Likes: 0
From: St. Peters MO Sometimes you have to prove yourself by doing alot of killing or alot of dying...
Default

Scoggin Dickey, Jegs, and Summit all sell the ZZ4 short block for around $2k. It is just the block assembly minus heads, intake, oil pan, and other odds and ends.

This is my recommendation because the TPI set up won't bolt to the Vortec heads. Get the short block and a set of Brodix or Trickflow heads and use the TPI.

you may also want to check www.hpsalvage.com. I was there a little over a month ago and he had several LT1 motor-trans-computer assy's sitting ready for install. He also had an LT4 and a few LS1s. His prices are reasonable since you are getting the entire assembly ready for install. I thought about that for one of my older car projects. Hope this helps some.

Chris
Reply

Get notified of new replies

To zz4 replacing L98 (newb help)





All times are GMT -4. The time now is 11:26 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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
story-7
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-8
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-9
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE