Go Back  The Hull Truth - Boating and Fishing Forum > BOATING FORUMS > The Boating Forum
Reload this Page >

2 questions about a 1998 454 vortec

Notices

2 questions about a 1998 454 vortec

Old 05-01-2010, 10:34 AM
  #1  
Senior MemberCaptains Club Member
Thread Starter
 
Join Date: Jun 2006
Location: Annapolis, MD
Posts: 790
Default 2 questions about a 1998 454 vortec

1. Does anyone have the shop manual? I need the torque procedure for replacing the cylinder heads.

B. Does anyone know where i can get a plug to fill the sensor holes on the side of the heads?


Thanks for the help
Proline3250 is offline  
Old 05-01-2010, 05:41 PM
  #2  
Senior MemberCaptains Club MemberPLEDGERPLEDGER
 
Join Date: Jan 2006
Location: Maui and SoCal
Posts: 7,103
Default

Torque the long cylinder head bolts at 75 to 80 lbft and the short ones to 65-70. The intake manifold bolts go to 25-30 lfbt.

Many blocks have the head bolt holes tapped all the way through into the water jackets, so you'll need to use sealer on the threads and oil under the bolt heads. Also, while the factory recommends replacing the bolts, they can be re-used once if the ends are not badly rusted. If they are rusted, a set of ARP studs does not cost a lot more than factory bolts and does a better job of clamping the heads

Most of the sensors have tapered pipe threads on them, so a regular pipe plug will work to plug the holes.
kerno is offline  
Old 05-01-2010, 06:42 PM
  #3  
Senior Member
 
Join Date: Jan 2010
Location: Northeast's Heaven on Earth.....
Posts: 120
Default

http://boxwrench.net/specs/chevy_bb.htm

torque pattern;

http://www.chevellebigblock.com/inta...uepattern.html
Smink is offline  
Old 05-02-2010, 04:35 AM
  #4  
Senior Member
 
Join Date: Apr 2010
Posts: 209
Default

Here is the engine block.
http://www.boatfix.com/merc/Servmanl/16/16A3R2.PDF

Make sure your engine serial number is within the guidelines of this manual, But here is the hole engine, You need to click on the area that you want to go to in the service manual outline area.
http://www.boatfix.com/merc/Servmanl/16/16cov2_1.pdf
Fun Times is offline  
Old 05-02-2010, 02:44 PM
  #5  
Senior MemberCaptains Club Member
Thread Starter
 
Join Date: Jun 2006
Location: Annapolis, MD
Posts: 790
Default

thanks guys
Proline3250 is offline  
Old 05-02-2010, 03:44 PM
  #6  
Senior Member
 
Join Date: Oct 2009
Location: Guff Coast
Posts: 140
Default

Originally Posted by kerno View Post
Torque the long cylinder head bolts at 75 to 80 lbft and the short ones to 65-70. The intake manifold bolts go to 25-30 lfbt.

Many blocks have the head bolt holes tapped all the way through into the water jackets, so you'll need to use sealer on the threads and oil under the bolt heads. Also, while the factory recommends replacing the bolts, they can be re-used once if the ends are not badly rusted. If they are rusted, a set of ARP studs does not cost a lot more than factory bolts and does a better job of clamping the heads

Most of the sensors have tapered pipe threads on them, so a regular pipe plug will work to plug the holes.
This
TRAILSAW is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


Thread Tools
Search this Thread