Bill Becker
Member
I recently purchased a JD 60 with a Power Block. How much more added horsepower does it have with the power block? Thanks.
- Thread starter Bill Becker
- Start date
David from Kansas
Well-known Member
I think it is much more than 2-3 HP but could be wrong. I would guess more like 10-12 HP. Someone will probably have the right answer.
Dennis(IA)
Member
I had a tractor magazine that had the power block bore sizes and I can not find it. You could bore a 2-cyl. Block .125". But I think the power blocks were .250"??? How much hp gain that would be I don't know. Dad had one in his 1951 A. They did use more gas that is for sure.
Pete in MD
Well-known Member
- Location
- Central Maryland
Looking at the Power-Block page in a 1957 Tractor Supply Catalog one of the claims made is -QUOTE- The 1947 (late) A model was rated at 34.14 horsepower at the drawbar. With the installation of the new Precision Power-Block, drawbar horsepower is increased to over 50 H.P.-UNQUOTE-
Displacement was increased from 321 to 381 cubic inches, a 19% increase and compression was increased from 5.6 to 6.5 to 1, a 16% increase.
For $134.50 exchange you got the block, 5-ring pistons, pins and rings.
Displacement was increased from 321 to 381 cubic inches, a 19% increase and compression was increased from 5.6 to 6.5 to 1, a 16% increase.
For $134.50 exchange you got the block, 5-ring pistons, pins and rings.
This is out of a 65 TSC Blue Book. 6' bore up from 5 1/2" and 381 CU as against 321 orignal. Gas in 60 was 6.5 to 1, LP was 8.1 to 1. 18 to 23 DB HP increase. This includes the A. Chart says 41 orignal to 53 power block for a 60 and for the B & 50 to 5", up from 4 1/5 inch or 4 11/16", G 6 1/2" up from 6 1/8" and 70 6 1/2" up from 5 7/8". Don't know how this would play out on a dyno but what Tractor Supply Company claimed.
Part number for a power block to fit late A-60 from Tractor Supply 2-0666-MO shipping weight 175 lbs. Price in the 1970 Blue Book $88.95. Increased the cubes from 321 to 381 and increased bore from 5.5" to 6". Compression ratio 6.5 to 1 and they claimed it increased horsepower between 18 and 23 at the drawbar. All info straight out of the 1970 Blue Book
Similar threads
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 © 1997-2024 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