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

Shop Now

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

Farmall & IHC Tractors Discussion Forum
:

Super H head on H engine

Welcome Guest, Log in or Register
Author 
gordo

04-01-2005 15:48:33




Report to Moderator

I asked the other day and we all agreed the 8043 DD superH head will bolt right on the H engine. What about the valve train. Do all the parts from the H head go right in there. For one thing the ex valves on the Super had rotators so I think their spring are a little shorter. Will the rocker assemblies work or do we use different length valves? Most of the valve train in the new head i got was trash. Was the grind on the SuperH cam the same as the H? Duration the same?

GordoSD

[Log in to Reply]   [No Email]
ChadS

04-01-2005 16:20:31




Report to Moderator
 Re: Super H head on H engine in reply to gordo, 04-01-2005 15:48:33  
Rocker assembly interchanges, Ive never checked a Super H-350 cam, but there is a difference in the grind, a good noticible change compared to stock. Lift, lobe separation angle, and duration is belived to be different in the SH-350 cams,, The head, and cam was a pretty matched set, and complimented each other nicely. 8043DD heads are exactly the same as the 300-350 heads, just the old casting number,, ports were much more open in the later heads, (8043DD and newer). Hope this helps,, ChadS

[Log in to Reply]  [No Email]
riverbend

04-01-2005 16:16:19




Report to Moderator
 Re: Super H head on H engine in reply to gordo, 04-01-2005 15:48:33  
The valve for the SH head will be different than the lower compression H head. I think that they will be longer. It makes no sense to me that they changed the valve when they redesigned the head. The springs for the 8043 and 6186 heads appear to be the same. On pages 254, 258, and 259 of the parts book, they give a list of the part numbers, but no dimensions other than some cap screws.

The H cam was 0.203" lift and the SH cam was 0.240". If your motor is apart far enough to get the cam out, it is worth having it reground to the SH specs. Have the lifters resurfaced at the same time.

[Log in to Reply]  [No Email]
ChadS

04-01-2005 16:25:29




Report to Moderator
 Re: Super H head on H engine in reply to riverbend, 04-01-2005 16:16:19  
Springs are the same,,, I was thinking the 8043DD head has the same valves as the 300-350 heads,,, there was a few versions of the 8043 heads,,, old 8043, and new 8043, you normally found the 8043Dd heads on the Super H, as a standard high compression gasoline head. The older 8043 heads had longer (??) valves. One way or the other,,, I cant remember,, The cam does help torque in the lugging rpms. Chad

[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