Anonymous-0
Well-known Member
Outside the box ofcoarse.
I have to be careful with the automotive heads . alot of automotive heads dont start flowing till .400 valve lift. I like low lift numbers on pullers.(quoted from post at 08:21:23 04/02/11) I am going to look at some other manufacturers as well i just have alot of chevy stuff laying around when i find what i want . It may be the bbc the plugs and combustion chamber is spaced correcyly . I will get a aluminum head so i can weld up bolt holes steam holes and cut easily.
thanks for the tip . the 440 head measures out better getting one tommorrow to look more closely at.(quoted from post at 11:14:54 04/03/11) 351 cleveland 4 v head 246cfm @.500 049 bbc head 250 cfm @.500 plus the cleveland head is to short in length.
Internet stalker posting on all my post I cant wait to see a picture of the leroi head flowing 300 cfm at 600 lift . the csa has to be large above three inches to do those numbers . Do not give any BS about wave tunning . Harmonic signals dont get strong enough to help untill the rpm is above 6500 .(quoted from post at 00:19:58 04/08/11)
if you're worried about the ford head, think about the one on top of the chevy head in the picture. There is more potential in that piece of iron than most. My old Leroi head is closer to 300 cfm than it is to 200 at max valve lift.
CSA OF A 2INCH ROUND TUBE IS 3.14csa .(quoted from post at 05:39:33 04/08/11)
reading comprehension is a wonderfull skill to have. Closer to 300 than to 200 simply means that it is over 250, as most of the world would understand.
Take a look in my pictures of the old manifold, you can get a pretty good idea of what the runner size is, as I or anyone else would match it fairley close to the intake runner of the head. I found a lot of potential as I've been working on it now and then. I did not change the runner size at all, but I did shape things better. Rember shape is more important than size. One also needs adequate cross sectional area to do the job and one needs to watch where local velocities are and what happens when doing the work. It's a pretty well balanced piece of proper sizeing and good shape. Now and then I make a little trip when I get something interesting or stumped on a problem I go see a fella who is a wiz at developing cylinder heads, he tested it a few times allong the way also and just similes and sends me home with more information, ideas and pieces to study, he's alwayse learning and I'm verry lucky that he will share just a small part of it.
So, maybe I will or will not post some pictures, what I learn is mine to keep.
quote="wi50"](quoted from post at 05:39:33 04/08/11)(quoted from post at 06:32:26 04/08/11)CSA OF A 2INCH ROUND TUBE IS 3.14csa .(quoted from post at 05:39:33 04/08/11)
reading comprehension is a wonderfull skill to have. Closer to 300 than to 200 simply means that it is over 250, as most of the world would understand.
Take a look in my pictures of the old manifold, you can get a pretty good idea of what the runner size is, as I or anyone else would match it fairley close to the intake runner of the head. I found a lot of potential as I've been working on it now and then. I did not change the runner size at all, but I did shape things better. Rember shape is more important than size. One also needs adequate cross sectional area to do the job and one needs to watch where local velocities are and what happens when doing the work. It's a pretty well balanced piece of proper sizeing and good shape. Now and then I make a little trip when I get something interesting or stumped on a problem I go see a fella who is a wiz at developing cylinder heads, he tested it a few times allong the way also and just similes and sends me home with more information, ideas and pieces to study, he's alwayse learning and I'm verry lucky that he will share just a small part of it.
So, maybe I will or will not post some pictures, what I learn is mine to keep.
you'll figure it out sometime.(reply to post at 21:57:49 04/08/11)
(quoted from post at 12:37:34 04/09/11)ts figured out . a lot of BS never a straight answer always left open for interpretation.(reply to post at 21:57:49 04/08/11)
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.
Copyright © 1997-2025 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