This site is not affiliated with AGCO Inc., Duluth GA., Allis-Chalmers Co., Milwaukee, WI., or any surviving or related corporate entity. All trademarks remain the property of their respective owners. All information presented herein should be considered the result of an un-moderated public forum with no responsibility for its accuracy or usability assumed by the users and sponsors of this site or any corporate entity.
The Forum Parts and Services Unofficial Allis Store Tractor Shows Serial Numbers History
Forum Home Forum Home > Other Topics > Pulling Forum
  New Posts New Posts
  FAQ FAQ  Forum Search   Events   Register Register  Login Login


Head porting on 426
 Post Reply Post Reply
Author
Message
  Topic Search Topic Search  Topic Options Topic Options
Operation chaos View Drop Down
Bronze Level
Bronze Level


Joined: 22 Feb 2017
Location: Lancaster wisc
Points: 7 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Operation chaos Quote  Post ReplyReply Direct Link To This Post Topic: Head porting on 426
    Posted: 09 Feb 2019 at 7:57pm
Got a 426ci with 4-.024 injectors,s300 turbo, stock cam advanced 9 degrees and Murphy’s rockers Limited to 3000 rpm. Did the standard pocket port cleanup under the valve. is there much to gain taking 1/8” out along the right side of runner on the exhaust port. Seem to me it would lessen the curve on that side and not be as restrictive or would it lose to much velocity
Back to Top
Sponsored Links


Back to Top
MACK View Drop Down
Orange Level
Orange Level


Joined: 17 Nov 2009
Points: 7664 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MACK Quote  Post ReplyReply Direct Link To This Post Posted: 14 Feb 2019 at 7:00am
A little work on a 426 head can make a lot of difference in & ex.    MACK
Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 11.10
Copyright ©2001-2017 Web Wiz Ltd.

This page was generated in 0.063 seconds.


Help Support the
Unofficial Allis Forum