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

Need a new engine.

Thread Tools
 
Search this Thread
 
Old Sep 23, 2007 | 03:08 PM
  #1  
SKONGEN's Avatar
SKONGEN
Thread Starter
Intermediate
15 Year Member
All Eyes On Me
 
Joined: Apr 2007
Posts: 25
Likes: 0
From: Svene,Norway
Default Need a new engine.

Hi everyone.
I have a -73 350/400
I need a new engine.I have tried "everything" but it still smokes ,left side.
All the spark plugs are tan/white .
Were can I bye the best/cheapest engine for my Corvette (Create) 350 HP

Regards

Stein Helgesen
Norway
Reply
Old Sep 23, 2007 | 05:14 PM
  #2  
avner's Avatar
avner
Burning Brakes
15 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Nov 2006
Posts: 954
Likes: 40
2022 C3 of the Year Finalist - Modified
Default

Hi,
First check if the compression of the cylinders is OK.
If yes, check the Valve Stem Seal?
Avner
Reply
Old Sep 23, 2007 | 07:01 PM
  #3  
ghoastrider1's Avatar
ghoastrider1
Le Mans Master
15 Year Member
 
Joined: May 2006
Posts: 7,708
Likes: 266
From: indy indiana
Default

if you have a GM dealer anywhere near you, you can buy a fully warrentied engine crate engine.
Reply
Old Sep 23, 2007 | 08:37 PM
  #4  
Roughrider's Avatar
Roughrider
Melting Slicks
 
Joined: Mar 2007
Posts: 2,100
Likes: 12
From: Frederick Maryland
Default

GM Performance 350 HO crate engine...best bang for the buck. Not that you can't find something else cheaper (and less powerful), but hard to find new engine that does what the 350 HO does with a new warranty along with it.
Reply
Old Sep 24, 2007 | 07:24 AM
  #5  
markdtn's Avatar
markdtn
Le Mans Master
10 Year Member
 
Joined: Aug 2003
Posts: 7,720
Likes: 12
From: Chattanooga TN
Default

Why not rebuild what you have? Probably cheaper overseas than trying to find a crate engine.
Reply
Old Sep 24, 2007 | 07:34 AM
  #6  
Paul L's Avatar
Paul L
Team Owner
15 Year Member
 
Joined: Aug 1999
Posts: 30,995
Likes: 99
From: Ontario
Default

About $25.00 worth of valve stem seals can work wonders.
Reply
Old Sep 24, 2007 | 10:48 AM
  #7  
SKONGEN's Avatar
SKONGEN
Thread Starter
Intermediate
15 Year Member
All Eyes On Me
 
Joined: Apr 2007
Posts: 25
Likes: 0
From: Svene,Norway
Default

Originally Posted by paul67
About $25.00 worth of valve stem seals can work wonders.
Have chevy alu heads (88-) .All new valve stem seals (umbrellas)
0.030 block,checked piston rings,(OK) new intake (edelbrock 2701) New carb (edelbrock 1406?) .CompCams 12-238-2.
Reply
Old Sep 24, 2007 | 11:06 AM
  #8  
SKONGEN's Avatar
SKONGEN
Thread Starter
Intermediate
15 Year Member
All Eyes On Me
 
Joined: Apr 2007
Posts: 25
Likes: 0
From: Svene,Norway
Default

Originally Posted by markdtn
Why not rebuild what you have? Probably cheaper overseas than trying to find a crate engine.
It will cost more to rebuild than buy a long block (260HP) $5500. Mine is approx.320HP.
Here it will cost about $ 8-10000 fore a crate 350HP with flat tappet cam.
If I can get a "good deal" in USA it will cost me shipping + 25% tax of bill.
Reply
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
Old Sep 24, 2007 | 12:03 PM
  #9  
Young69Owner's Avatar
Young69Owner
Burning Brakes
 
Joined: Oct 2006
Posts: 1,044
Likes: 0
From: Henrico VA
Default

My 350/285 was $1600...
Reply
Old Sep 24, 2007 | 01:14 PM
  #10  
Matt Gruber's Avatar
Matt Gruber
Race Director
Active Streak: 30 Days
Community Influencer
Liked
Loved
 
Joined: Oct 2000
Posts: 15,036
Likes: 79
From: central FL, near the beach.
Default

Originally Posted by SKONGEN
Have chevy alu heads (88-) .All new valve stem seals (umbrellas)
0.030 block,checked piston rings,(OK) new intake (edelbrock 2701) New carb (edelbrock 1406?) .CompCams 12-238-2.
did u use a soft GM intake gasket?
Blue permatorque often wont seal
Reply
Old Sep 24, 2007 | 02:04 PM
  #11  
SKONGEN's Avatar
SKONGEN
Thread Starter
Intermediate
15 Year Member
All Eyes On Me
 
Joined: Apr 2007
Posts: 25
Likes: 0
From: Svene,Norway
Default

Originally Posted by Matt Gruber
did u use a soft GM intake gasket?
Blue permatorque often wont seal
I used Edelbrock intake gasket.
Reply
Old Sep 25, 2007 | 12:05 AM
  #12  
markdtn's Avatar
markdtn
Le Mans Master
10 Year Member
 
Joined: Aug 2003
Posts: 7,720
Likes: 12
From: Chattanooga TN
Default

Originally Posted by SKONGEN
It will cost more to rebuild than buy a long block (260HP) $5500. Mine is approx.320HP.
Here it will cost about $ 8-10000 fore a crate 350HP with flat tappet cam.
If I can get a "good deal" in USA it will cost me shipping + 25% tax of bill.
A nice rebuild kit should be under $1000 here with the best of everything for a mild performance rebuild. Machine work can be done locally, in US around $1000 or less depending on head work required. Is it that much more there? If you don't have a rod hanging through the side of the block-which you don't-I can't see why that wouldn't be substantially less money?
Reply
Old Sep 25, 2007 | 09:59 AM
  #13  
my83432's Avatar
my83432
Instructor
 
Joined: Oct 2006
Posts: 124
Likes: 0
From: Madison WI
Default

What color is the smoke? Are you burning coolant or oil? Are you smoking all of the time or just on startup.
Reply
Old Sep 25, 2007 | 11:19 AM
  #14  
SKONGEN's Avatar
SKONGEN
Thread Starter
Intermediate
15 Year Member
All Eyes On Me
 
Joined: Apr 2007
Posts: 25
Likes: 0
From: Svene,Norway
Default

Originally Posted by my83432
What color is the smoke? Are you burning coolant or oil? Are you smoking all of the time or just on startup.
It`s smoking blue when it ´s getting warm.When hot it always smokes.
Never smokes when cold ,but after a few minutes.

A nice rebuild kit should be under $1000 here with the best of everything for a mild performance rebuild. Machine work can be done locally, in US around $1000 or less depending on head work required. Is it that much more there? If you don't have a rod hanging through the side of the block-which you don't-I can't see why that wouldn't be substantially less money?


You don't live in Norway.
One liter 95 gas cost $1.80-1.90
Reply
Old Sep 25, 2007 | 12:46 PM
  #15  
markdtn's Avatar
markdtn
Le Mans Master
10 Year Member
 
Joined: Aug 2003
Posts: 7,720
Likes: 12
From: Chattanooga TN
Default

Originally Posted by SKONGEN;
You don't live in Norway.
One liter 95 gas cost $1.80-1.90
You said US price plus shipping plus 25%. That ought to be $1000+$200 shipping at the most+$300 tax. How much is machining there?

A whole engine say $3000 + $600 + $900 tax, that has to be more money.
Reply
Old Sep 25, 2007 | 12:57 PM
  #16  
ghoastrider1's Avatar
ghoastrider1
Le Mans Master
15 Year Member
 
Joined: May 2006
Posts: 7,708
Likes: 266
From: indy indiana
Default

heres an idea...fly me and rebuild parts kit over and i will rebuild in a weeks time. I will,of course, buy the beer.
Reply
Old Sep 25, 2007 | 01:16 PM
  #17  
GD70's Avatar
GD70
Le Mans Master
15 Year Member
 
Joined: Jan 2007
Posts: 5,485
Likes: 7
From: Peekskill NY
Default

What ever you do, if it's #'s matching, keep the original engine, even if you put in a crate engine.
Reply

Get notified of new replies

To Need a new engine.

Old Sep 25, 2007 | 01:52 PM
  #18  
my83432's Avatar
my83432
Instructor
 
Joined: Oct 2006
Posts: 124
Likes: 0
From: Madison WI
Default

I would guess that the smoke is white then. I don't know that you need a new engine as long as your oil pressure is still good. Did you do a compression test? It sounds more like a bad head gasket or a cracked head.
Reply
Old Sep 25, 2007 | 02:33 PM
  #19  
rihwoods's Avatar
rihwoods
Race Director
10 Year Member
 
Joined: Feb 2005
Posts: 16,100
Likes: 17
Default

The cheapest GM crate motor (350) is made in Mexico....350....$1200.00

We call them "No HUEVOS"...
Reply
Old Sep 25, 2007 | 04:45 PM
  #20  
SKONGEN's Avatar
SKONGEN
Thread Starter
Intermediate
15 Year Member
All Eyes On Me
 
Joined: Apr 2007
Posts: 25
Likes: 0
From: Svene,Norway
Default

Originally Posted by my83432
I would guess that the smoke is white then. I don't know that you need a new engine as long as your oil pressure is still good. Did you do a compression test? It sounds more like a bad head gasket or a cracked head.
The smoke is always BLUE, the oil pressure is between 40 and 60.
The block is original but the heads are Chevy alu. intake and carb is Edelbrock.
I took a leak test today and that was fine.No leak into intake or headers.
I have only ran the car about 1500 miles after re-done the heads last winter.
Reply



All times are GMT -4. The time now is 12:09 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