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

73 big block ???

Thread Tools
 
Search this Thread
 
Old May 6, 2002 | 09:28 PM
  #1  
bl75vette's Avatar
bl75vette
Thread Starter
Instructor
10 Year Member
 
Joined: Jul 2001
Posts: 189
Likes: 0
From: Berkeley Heights New Jersey
Default 73 big block ???

Asking for advice on how to determine if a 73 is truly an original BB besides having the VIN #. The original engine is gone so what should I look for proof in other original parts that came with the BB option?
Reply
Old May 6, 2002 | 09:29 PM
  #2  
PRNDL's Avatar
PRNDL
Team Owner
20 Year Member
 
Joined: Jul 1999
Posts: 26,545
Likes: 46
From: Huntersville NC
Default Re: 73 big block ??? (bl75vette)

so you dont have a vin? MJ
Reply
Old May 6, 2002 | 09:51 PM
  #3  
bl75vette's Avatar
bl75vette
Thread Starter
Instructor
10 Year Member
 
Joined: Jul 2001
Posts: 189
Likes: 0
From: Berkeley Heights New Jersey
Default Re: 73 big block ??? (MNJack)

Have the vin but not the BB. Want to know if there are any other tell-tales that give away that it was an original BB?
Reply
Old May 6, 2002 | 09:53 PM
  #4  
MacA1979's Avatar
MacA1979
Always Shiftin'
Supporting Lifetime Gold
25 Year Member
Liked
Community Favorite
Top Answer: 3
 
Joined: Jun 2000
Posts: 4,028
Likes: 939
From: Central Florida
2025 C7 of the Year Finalist - Modified
2024 C7 of the Year Finalist - Modified
2023 C7 of the Year Finalist - Unmodified
2019 C5 of Year Finalist (stock)
Default Re: 73 big block ??? (bl75vette)

Fifth digit in the VIN should be a "Z" for a big block. "J" for base engine, and "T" for L-82. This should be your proof unless you think the VIN has been altered.


[Modified by QikStik, 8:56 PM 5/6/2002]
Reply
Old May 7, 2002 | 12:07 AM
  #5  
73 LS-4's Avatar
73 LS-4
Melting Slicks
20 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Jun 2001
Posts: 2,340
Likes: 2
From: Moro IL
Default Re: 73 big block ??? (QikStik)

Also big block cars will have capped u-joints rather then the regular band style, and they be equipped with a factory rear sway bar.

:cheers:
Pat Kunz
Reply

Get notified of new replies

To 73 big block ???





All times are GMT -4. The time now is 09:27 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