301 Performance Head Photos

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Category: Other Topics
Forum Name: Pulling Forum
Forum Description: Forum dedicated to Tractor and Garden Pulling
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=70227
Printed Date: 20 Sep 2024 at 10:17pm
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Topic: 301 Performance Head Photos

Posted By: O.P.S. Heads
Subject: 301 Performance Head Photos
Date Posted: 13 May 2013 at 6:59pm

The second one of these so far. Enjoy the photos. If anyone can help me size them correctly it would be much appreciated.

Replies:

Posted By: DougG
Date Posted: 13 May 2013 at 7:40pm

Very nice,, completely home made or just doctored up ?

Posted By: O.P.S. Heads
Date Posted: 13 May 2013 at 7:51pm

It's a new, solid casting not an OEM head with the water jacket filled. This allows for improved intake and exhaust ports.

Posted By: Mikez
Date Posted: 13 May 2013 at 7:57pm

That's sweet looking. Have you put any on a engine how does it perform

Posted By: O.P.S. Heads
Date Posted: 13 May 2013 at 8:04pm

The first head we made ran on a single turbo, big cube engine in the LLSS class. Although we never did any direct dyno comparisons between it and an OEM head, I think it was a nice improvement performance wise. The flow numbers are considerably more than OEM which allows a larger turbo to be used.

Posted By: Mikez
Date Posted: 13 May 2013 at 8:17pm

Big turbo is always fun lol. Is this your own tractor your running it in. What other engines do you play with

Posted By: Dnoym N. S. Can.
Date Posted: 13 May 2013 at 8:21pm

this is what it look like @ 480 with
and 270 height
when you up load your picture you can change
the size. in

Image Properties

your size is 1920 with
1080 height
what ever you do to one number you have
too do to the other number or it will look funny
HTH B:-) Dnoym

Posted By: O.P.S. Heads
Date Posted: 13 May 2013 at 8:25pm

The big cube single was mine that I sold to a buddy. That's when this type head was used after he bought it. I have another friend with a twin turbo LLSS model 180. Right now he is still using the OEM head. I don't have a tractor of my own anymore. Haven't for years. Still enjoy tractor pulling and in particular the 301 engine. We struggle to keep up with the red and green tractors around here. The improved head is designed to narrow the gap and last longer than the old OEM heads which my buddy replaces every year due to cracks.

Posted By: O.P.S. Heads
Date Posted: 13 May 2013 at 8:29pm

Dnoym,

I like that size a lot better. Where do you find the "image properties" button??

Posted By: DougG
Date Posted: 13 May 2013 at 8:35pm

I do like messing with the 301 too,, lots of power/ potential outa a small package ,, and always in a One Eighty too!!

Posted By: wi50
Date Posted: 13 May 2013 at 8:36pm

Awesome. I'm just curious if the exhaust manifold is on it for some reasons we talked about

-------------
"see what happens when you have no practical experience doing something...... you end up playing with calculators and looking stupid on the internet"

Posted By: O.P.S. Heads
Date Posted: 13 May 2013 at 8:48pm

Not on this one(and yes I know what you are talking about). The manifold is there just to illustrate how a stock manifold will fit. The intake side uses the 426 intake manifold bolt pattern so a 426 intercooler will bolt right on if need be.

Posted By: Dnoym N. S. Can.
Date Posted: 13 May 2013 at 8:51pm

in the quick reply message at the bottom
of this post you will see the up/side ways
arrow hit that button and then click on
the picture of the tree that will bring
you to the image properties and the
image you all readed loaded so if you click
on one of your picture you will see on your
right where you can see the size so i took and
divide them number by 4
B:-) Dnoym

Posted By: O.P.S. Heads
Date Posted: 13 May 2013 at 8:54pm

Thanks a bunch. I'm not all that sharp so I need all the help I can get.

Posted By: O.P.S. Heads
Date Posted: 13 May 2013 at 9:01pm

It's not that you aren't doing a good job of explaining it, but I still am having trouble. I when I get to the tree and click on it, all I am getting is a chance to upload more pics.

Posted By: cornbinder
Date Posted: 14 May 2013 at 2:40am

real nice cyl. head. there is lots of power to be had bye a cyl. head that flows well. can you do that head that the water jackets aren't filled for guys like me that want better performance for guys like me that want to pull and still put their tractor in the field?? or is it strictly for higher rpm pulling?

-------------
D-19 gas w/f-sold
185-d yr round cab
95 mustang gt 5.0
86 mustang 5.0 coupe
3 99 f-250 7.3 4x4's
96 f-250 7.3 4x4

Posted By: Dnoym N. S. Can.
Date Posted: 14 May 2013 at 7:42pm

you must be useding a hosting site to up load
your picture i did fine some more help for you
don`t give up your all most there .there people
hear that will help you

Gerald J. wrote:

Or click on the arrow in the reply block header that's pointed up to the right. That brings up a more versatile editor which has provision for inserting an image. Go to photoshop and get the link like Erik says and when you click on the insert image it will have a place for the image address at photoshop, copy and paste that link, adjust the size to about 600 x 800 to fit on most user's displays well, then type your text before and after.

Also note that if you go back to a post of yours, that when reading it there will be a button up to the right for post options and one you get is to be able to edit your posts, to make changes and corrections.

Gerald J.

ErikR wrote:

OK, on the photobucket webpage that your tractor picture is on... do you see the box marked "image links"?

There are 4 choices, they're marked..... Email & IM, Direct link, HTML code, and IMG code.

click the IMG code, the actual code, not the words "IMG code"..... it should say copied after you do...

Paste the code in the forum reply box

If you're on a Mac.... I'm clueless

B:-) Dnpym

Posted By: mattb
Date Posted: 16 May 2013 at 9:52am

How much bigger is a 426 valve? Im running a naturally aspirated 301 at 2400 rpm in antique farmstock and looking to get more power out of it.

Posted By: lussetto
Date Posted: 16 May 2013 at 1:17pm

Would like to talk to you about the head set up.
Greg
308-279-0232

Posted By: O.P.S. Heads
Date Posted: 16 May 2013 at 1:22pm

Matt B. The 426 intake valve diameter is 1.835". A stock 301 valve is about 1.600 if I remember right. Depending on your bore diameter you can go with a bigger valve which will yield more flow yet. The ports are big enough. Flow bench results show that an OEM head with 426 valves will flow about 160 - 170 CFM on the intakes with a normal port and polish job. This head was at 240 CFM with 426 valves. The very first head was @ 285 CFM with 2.00 inch dia. valves. I am working to improve the port more yet and the goal is to get 265- 270 with the 426 valve.

Greg,

Email me - opsheads@hotmail.com

Posted By: AC200Puller
Date Posted: 17 May 2013 at 3:00pm

Nice looking head. Do the sleaves have to be cut for the 426 valves on this head?

Posted By: O.P.S. Heads
Date Posted: 17 May 2013 at 9:18pm

The valves in this head are located in the same position as an OEM head so if you are less than 4 1/8 dia. bore you will need to notch the sleeves so the valves will have proper clearance if you are using 426 sized valves.

It is not mandatory to use 426 valves. Depending on how the head is machined, smaller valves could be used.

Posted By: AC200Puller
Date Posted: 18 May 2013 at 9:24am

Ok Thanks. Keep up the good work!

Posted By: bkostishion
Date Posted: 02 Jun 2015 at 9:17pm

do you have any pictures showing how you notched out the sleeves? thanks.

Posted By: Ken(MI)
Date Posted: 03 Jun 2015 at 7:04am

Nice looking work!

Posted By: KevinON
Date Posted: 07 Jun 2015 at 5:21pm

Do your heads work with a 301 twin turbo or do you require more cubes? Very nice work btw.