C3 General General C3 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by:

New block?

Thread Tools
 
Search this Thread
 
Old Jan 19, 2019 | 12:59 PM
  #1  
C3ForLife1968's Avatar
C3ForLife1968
Thread Starter
Instructor
 
Joined: May 2018
Posts: 100
Likes: 4
Default New block?

Can anyone tell me the condition of my block? Should i get a new one or should I use this? I have no experience in anything so every tip helps sorry if the pictures are bad. I only found one crack near the location of the oil filter. I am not sure if this is how it’s suposed to be or if it is a damage. The block has been sitting for 23 years so some work is needed?? Look at the pictures provided please)))

Thanks in advance


Here is the crack I am talking about. It is on the right sylinder












Reply
Old Jan 19, 2019 | 01:32 PM
  #2  
derekderek's Avatar
derekderek
Race Director
 
Joined: Jul 2015
Posts: 13,082
Likes: 3,399
From: SW Florida.
Default

show the crack near oil filter. i have a feeling it is an edge where the mold went together. what is engine's history. those mains look fine, so the engine did not have an oil pressure problem. as long as you are sure the main caps weren't mixed up when disassembled. you can check by putting them back on the block without bearings and match up the tool marks where the surface was machined. the bores look pretty good. i would consider getting it magged and measured and assemble it at the bore size it is. but you can always justify boring it out if you were planning to anyway.
Reply
Old Jan 19, 2019 | 01:34 PM
  #3  
C3ForLife1968's Avatar
C3ForLife1968
Thread Starter
Instructor
 
Joined: May 2018
Posts: 100
Likes: 4
Default

Originally Posted by derekderek
show the crack near oil filter. i have a feeling it is an edge where the mold went together. what is engine's history. those mains look fine, so the engine did not have an oil pressure problem. as long as you are sure the main caps weren't mixed up when disassembled. you can check by putting them back on the block without bearings and match up the tool marks where the surface was machined. the bores look pretty good. i would consider getting it magged and measured and assemble it at the bore size it is. but you can always justify boring it out if you were planning to anyway.
It isnt a crack, its more a piece that is missing (?)
Reply
Old Jan 20, 2019 | 07:43 AM
  #4  
Rescue Rogers's Avatar
Rescue Rogers
Is my vette stock?? HAHA
Supporting Lifetime Gold
Veteran: Navy
10 Year Member
Community Builder
Loved
 
Joined: Oct 2015
Posts: 20,212
Likes: 9,352
From: Im not allowed to tell you
2020 C3 of the Year Finalist - Modified
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
Default

we need a pic. If its a big enough chunk where the oil filter seals to the block, that may give you the answer. Otherwise, bring it to a machine shop, find out what they charge and have them check the block. So far it looks good from the pics, but it should be measured

Last edited by Rescue Rogers; Jan 20, 2019 at 07:43 AM.
Reply
Old Jan 20, 2019 | 07:45 AM
  #5  
C3ForLife1968's Avatar
C3ForLife1968
Thread Starter
Instructor
 
Joined: May 2018
Posts: 100
Likes: 4
Default

Originally Posted by Rescue Rogers
we need a pic. If its a big enough chunk where the oil filter seals to the block, that may give you the answer. Otherwise, bring it to a machine shop, find out what they charge and have them check the block. So far it looks good from the pics, but it should be measured
the damage is on the right sylinder on the first pic
Reply
Old Jan 20, 2019 | 07:46 AM
  #6  
Rescue Rogers's Avatar
Rescue Rogers
Is my vette stock?? HAHA
Supporting Lifetime Gold
Veteran: Navy
10 Year Member
Community Builder
Loved
 
Joined: Oct 2015
Posts: 20,212
Likes: 9,352
From: Im not allowed to tell you
2020 C3 of the Year Finalist - Modified
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
Default

just saw the pic, but the lighting is difficult to tell . it looks like its just a lip of the bottom but it depends on what happened. Bring it to a shop for a magnaflux inspection. You dont want to have a hair line crack migrating up the cylinder into the water jacket

Last edited by Rescue Rogers; Jan 20, 2019 at 07:47 AM.
Reply
Old Jan 20, 2019 | 07:48 AM
  #7  
C3ForLife1968's Avatar
C3ForLife1968
Thread Starter
Instructor
 
Joined: May 2018
Posts: 100
Likes: 4
Default

Ok, thanks
Reply
Old Jan 20, 2019 | 10:15 AM
  #8  
Rescue Rogers's Avatar
Rescue Rogers
Is my vette stock?? HAHA
Supporting Lifetime Gold
Veteran: Navy
10 Year Member
Community Builder
Loved
 
Joined: Oct 2015
Posts: 20,212
Likes: 9,352
From: Im not allowed to tell you
2020 C3 of the Year Finalist - Modified
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
Default

If the shop says there is no crack then I would have them hone it and radius the chip so it doesnt become a problem, Then you can rebuild it or have them do it. Its not hard to rebuild the engine, you can buy a book on it and just follow the instructions. The hard part is the machine work. Its a good learning experience.
Reply

Get notified of new replies

To New block?

Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

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

 Joe Kucinski
story-8

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

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo




All times are GMT -4. The time now is 07:03 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
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-8
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-9
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