Full Size K5 (1969-1991) GMT415 (1992-1994) Tech Discuss any and all full size K5 general tech topics here.

89 Blazer Engine Swap

  #1  
Old 02-23-2011, 12:52 PM
Starting Member
Thread Starter
Join Date: Apr 2009
Posts: 1
Estes Mojo is on a distinguished road
Default 89 Blazer Engine Swap

Hey Everybody, A long time lurker; however new to posting in the forum so here goes:
I have a 1989 full size Blazer, auto tranny. Wanting to swap out my dead 350K with a 400 small block that a friend is giving me for free. Will the 400 bolt right up? I want to keep the TBI so next question- Will 350 manifold with Throttle Body fit on the 400 engine? Don't want to get into extensive modifying to make this work.I appreciate the responses. Thanks.
 
  #2  
Old 02-24-2011, 11:26 AM
swartlkk's Avatar
Administrator
Join Date: May 2005
Location: Waterloo, NY
Posts: 40,792
swartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond reputeswartlkk has a reputation beyond repute
Default

I believe that everything should bolt up without issue.

The biggest concern that I would have is whether the ECU will be able to accept the changes and work properly with the new engine.
 
  #3  
Old 02-24-2011, 12:29 PM
abig84's Avatar
BF Veteran
Join Date: Aug 2009
Location: munster indiana
Posts: 3,426
abig84 will become famous soon enoughabig84 will become famous soon enough
Default

i think the flywheel MIGHT be different. i broke mine years ago and remembered i didnt use one off a 350 for whatever reason, so just use the one on the 400 if possible
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
94BlazerGirl
Engine & Transmission
1
08-28-2014 06:14 PM
SureShooter29
Engine & Transmission
13
03-18-2010 03:02 PM
Phillips8201
Engine & Transmission
1
03-16-2010 10:26 AM
gmoney30
Full Size K5 (1969-1991) GMT415 (1992-1994) Tech
8
01-22-2010 07:07 PM


Thread Tools
Search this Thread
Quick Reply: 89 Blazer Engine Swap


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.