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

questions about different block

Thread Tools
 
Search this Thread
 
Old 11-21-2010, 12:03 PM
  #1  
tehcarguy
Burning Brakes
Thread Starter
 
tehcarguy's Avatar
 
Member Since: Aug 2010
Posts: 833
Likes: 0
Received 1 Like on 1 Post
Default questions about different block

One of my friends said he could sell me his 350 block for a really good price. It's from an 80 something truck, and I was wondering if it would work with all the sensors and etc. on my 86. I know you could make almost any chevy engine work in these cars, but I don't want to modify too much.

Last edited by tehcarguy; 11-21-2010 at 12:07 PM.
Old 11-21-2010, 01:07 PM
  #2  
Muffin
Race Director
Support Corvetteforum!
 
Muffin's Avatar
 
Member Since: Jun 1999
Location: Merritt Ils Fl
Posts: 14,924
Likes: 0
Received 9 Likes on 7 Posts

Default

In short, yes it will work. I am running a 1979 truck block in the 85.
Old 11-21-2010, 01:42 PM
  #3  
383vett
Race Director
 
383vett's Avatar
 
Member Since: Apr 2003
Location: moraga ca
Posts: 17,570
Received 1,541 Likes on 1,042 Posts

Default

You will need a driver's side dipstick and the oilpan that came with the early block, but everything else will bolt up. I used to run a 70's block in my 84.
Old 11-21-2010, 03:52 PM
  #4  
tehcarguy
Burning Brakes
Thread Starter
 
tehcarguy's Avatar
 
Member Since: Aug 2010
Posts: 833
Likes: 0
Received 1 Like on 1 Post
Default

Cool. I was thinking that because of the amount of sensors on vettes, other blocks would require me to change some things. I hope he doesn't change his mind!
Old 11-21-2010, 05:57 PM
  #5  
Muffin
Race Director
Support Corvetteforum!
 
Muffin's Avatar
 
Member Since: Jun 1999
Location: Merritt Ils Fl
Posts: 14,924
Likes: 0
Received 9 Likes on 7 Posts

Default

The only sensor in the block itself is the knock sensor. All the rest are in the heads and the intake manifold. OK purists, the O2 sensor is in exhaust but it is unchanged with a block swap.
Old 11-21-2010, 06:03 PM
  #6  
96GS#007
Tech Contributor
 
96GS#007's Avatar
 
Member Since: Apr 2000
Location: Movin' On
Posts: 11,965
Received 1,745 Likes on 1,053 Posts

Default

You need to know if the block is a one or two piece rear seal.
Old 11-21-2010, 06:09 PM
  #7  
hooked073
Melting Slicks
 
hooked073's Avatar
 
Member Since: May 2010
Location: Conowingo Maryland
Posts: 2,082
Received 2 Likes on 2 Posts
Default

I am having a serious brain fart right now but I can not remember the year changes for the 1 or 2pc rear main seals. But if is not the same as yours you will need to make some changes if I recall correctly.
Old 11-21-2010, 06:11 PM
  #8  
hooked073
Melting Slicks
 
hooked073's Avatar
 
Member Since: May 2010
Location: Conowingo Maryland
Posts: 2,082
Received 2 Likes on 2 Posts
Default

Sorry 96gs I was tring to remember years and you got it in while my brain was on vacation LOL
Old 11-21-2010, 06:19 PM
  #9  
nutz4c4
Melting Slicks
 
nutz4c4's Avatar
 
Member Since: Nov 2005
Location: WAY UPSTATE NY
Posts: 2,736
Likes: 0
Received 0 Likes on 0 Posts
Default

'86 began 1 pc rear seal but no roller cam until '87
Old 11-21-2010, 08:50 PM
  #10  
tehcarguy
Burning Brakes
Thread Starter
 
tehcarguy's Avatar
 
Member Since: Aug 2010
Posts: 833
Likes: 0
Received 1 Like on 1 Post
Default

Lol, already getting ideas for it... I know it's a good engine, I've heard it before and he's taken very good care of it. I wish I knew the mileage on it though...
Old 11-21-2010, 10:12 PM
  #11  
383vett
Race Director
 
383vett's Avatar
 
Member Since: Apr 2003
Location: moraga ca
Posts: 17,570
Received 1,541 Likes on 1,042 Posts

Default

Originally Posted by Muffin
The only sensor in the block itself is the knock sensor. All the rest are in the heads and the intake manifold. OK purists, the O2 sensor is in exhaust but it is unchanged with a block swap.
Oil pressure and oil temperature sensors are in the block. They are close to the same locations in the early and late blocks.
Old 11-22-2010, 12:09 AM
  #12  
coupeguy2001
Le Mans Master
 
coupeguy2001's Avatar
 
Member Since: Sep 2006
Location: Phoenix AZ
Posts: 6,043
Received 144 Likes on 106 Posts
2021 C4 of the Year - Modified Finalist

Default

It will work in your car. the only problem will be how much money you can throw at it.
If you currently don't have a 1 piece rear seal, use your old pan. If you do, just get another one locally at a junk yard off of a 75- 80 corvette.
oil pump pickup is different but oil pump is the same.
A used short block is usually in the $75-$100 range. a short block that is useable with no work is about $150-$200
I bought one for the pickup for $75 and it was a 4 bolt main. I bought one at a wrecking yard for a friend with forged pistons that was useable for $150, 4 bolt main, with a cam, pan, harmonic balancer, oil pump, timing cover and had roller timing chain. It is still running fine 2 years later. We bolted stock vortec heads on it with better springs and a vortec air gap , changed the cam, and it's a killer engine.

Last edited by coupeguy2001; 11-22-2010 at 12:12 AM.

Get notified of new replies

To questions about different block




Quick Reply: questions about different block



All times are GMT -4. The time now is 01:19 AM.