Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Attention Forum Users: On the 28th of December 2023 at 9:00am Central Time, we will be taking the forums down for maintenance while we prepare the new forums for your use. Please click here for more information.

John Deere Tractors Discussion Forum
:

720/730 head on a 70?

Welcome Guest, Log in or Register
Author 
BDM

10-19-2006 19:31:41




Report to Moderator

Hello all. Can a late model head p/n F2701R be used on a 70 series engine? If so any parts changes I will need like valve cover, etc. etc? Thanks.

Brian




[Log in to Reply]   [No Email]
430WLPG

10-20-2006 20:16:57




Report to Moderator
 Re: 720/730 head on a 70? in reply to BDM, 10-19-2006 19:31:41  
If it's gas they will NOT interchange, Cause one thing is the spark plugs are in the block on a 70 and they are in the head on the 720-730



[Log in to Reply]  [No Email]
BDM

10-20-2006 22:52:03




Report to Moderator
 Re: 720/730 head on a 70? in reply to 430WLPG, 10-20-2006 20:16:57  
Thanks. Guess I would be looking at a block change also.



[Log in to Reply]  [No Email]
buickanddeere

10-20-2006 08:15:56




Report to Moderator
 Re: 720/730 head on a 70? in reply to BDM, 10-19-2006 19:31:41  
Yes. What are you doing about injector spray pattern & piston bowl shape? 1-800-522-7448 will get you the parts and service manuals required. All the interchange/upgrade parts are listed.



[Log in to Reply]  [No Email]
BDM

10-20-2006 15:17:07




Report to Moderator
 Re: 720/730 head on a 70? in reply to buickanddeere, 10-20-2006 08:15:56  
Thanks for the info. I should have added it's a gas engine. Unless that p/n correlates to a diesel?



[Log in to Reply]  [No Email]
buickanddeere

10-21-2006 08:10:59




Report to Moderator
 Re: 720/730 head on a 70? in reply to BDM, 10-20-2006 15:17:07  
It's a no. The 70 head is pretty decent anyways with a good three angle valve job, valve bowl blending and manifold to port matching. A fly cutter can be used to mill 1/8 to 3/16 of the eye brow away from the intake valve for more airflow. The head can be milled 125 no problem for more compression.



[Log in to Reply]  [No Email]
BDM

10-21-2006 09:04:43




Report to Moderator
 Re: 720/730 head on a 70? in reply to buickanddeere, 10-21-2006 08:10:59  
Really? Well thanks for that info buickanddeere. Someone else mentioned it probably wouldn't be worth my effort to change over to the later engine design unless I'm trying to squeeze every last HP out. Thanks again.



[Log in to Reply]  [No Email]
buickanddeere

10-21-2006 16:16:52




Report to Moderator
 Re: 720/730 head on a 70? in reply to BDM, 10-21-2006 09:04:43  
The blueprinting I was talking about is done on a stock 70 head to go on a 70 tractor. Cramming a 720/730 head onto a 70 is beyond practicality.



[Log in to Reply]  [No Email]
BDM

10-21-2006 16:30:01




Report to Moderator
 Re: 720/730 head on a 70? in reply to buickanddeere, 10-21-2006 16:16:52  
Yes, I knew what you meant. Someone else sent me a message not to bother for practicality, as you say.



[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:


TRACTOR PARTS TRACTOR MANUALS
We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home  |  Forums


Copyright © 1997-2023 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy