HAVE A NICE DAY!!!! Post Now
 

 Return  

Carb, Cam, Compression, Exhaust Manifolds

January 1 2010 at 11:26 AM
No score for this post
  (no login)
from IP address 24.23.235.202


Response to What is the diff. between A code and K code Mustang 4100s?

 

Those are the parts that added power to the 289 k-code. The other stuff just added revs to match.
Carb was bigger, 1.12 vs 1.08 as stated (the throttle bores are bigger too).
Cam was bigger, 289/"271" had about 228-228 solid duration at .050" lobe, and the 289/"225" had about 180-180 at .050", a teeny tiny cam, great for watching the fan blades at idle but not much else.
Compression was higher, over 11-1 on the early 289/271 vs 10-1 on the 289/"225".
Exhaust manifolds are also way better than those twisted drinking straws used on the other 289s.

Intake and head flows were about the same which is why the 289-K *only* made 271hp. A good intake (and heads) will really wake it up.

 
Scoring disabled. You must be logged in to score posts.Respond to this message   
Find more forums on TechnicalCreate your own forum at Network54
 Copyright © 1999-2014 Network54. All rights reserved.   Terms of Use   Privacy Statement  
Post Now