Posted by The tractor vet on December 21, 2019 at 08:30:49 from (104.179.81.68):
In Reply to: Re: Head Bolts posted by showcrop on December 21, 2019 at 04:23:39:
Well many years ago i put together many higher then stock compression engines and we used FACTORY HEAD bolts and ya how what they all stayed together . My 390 i hand built from new and when i say new was a NEW BLOCK bare new heads bare and new main bolts head bolts , as a matter of fact all bolts were factory new . And the pistons with the heads used came up with 13.5 to 1 compression ratio on steel shim head gskt. This engine ran seven days a week and three days a week if i was not working was getting the bag run off it on the drag strip for two and half years . The last big power engine i put together for myself was a 385 block Ford that i never did the math on compression ratio but i can tell you this i could not personally hold a compression gauge into the spark plug hole So i had a buddy who was way stronger then i TRY and hold it and on the first compression stroke it shoved him off the step stool and pegged the gauge a 300 PSI and ya know what we used stock 460 Ford head bolts on that one and ran that engine for five years and no problems holding the head on . Sure you can spend big money and get your ARP studs and feel all warm and fuzzy inside . The old engines did use studs on some makes and the ones that did you learned to hate when you had to pull the head and start the clean up fighting your way around each stud . More labor involved when ya have to do machine work on the block , the fun of getting all the studs out of the block , the extra room required for pulling a head over top the studs . And on and old A/C G engine ya could darn near get away with grade two all thread , But a good quality grade 8 would be fine . And un plated Just a plain old Black finish bolt , Now if they used a heavy flat you may run into a problem finding one close to what they came with . Even if your pushing one horse power to one cubic inch myself i would not worry about it . Only engine i had some what a problem with was my Small cam 855 Cummins and on that one i could count on a head gskt failure and stretched head bolt around 50-60000 miles as i may have had the wick turned up a wee bit to much along with the 68 PSI boost the VT 1710 injection pump build . And the fact that we hauled vary heavy . Back then the object of the game was to run fast haul heavy and look light , so you had to be able to plum smoke a freight box on the hill while having more NET in the wagon then they had Gross.
Upload one or more videos to your post. Photo and video filesizes should be less than 5MB. Formats allowed are gif, jpg, png, ogg, mp4, mov, and avi. Be sure to use filenames without spaces or special characters, and filetypes of 3 digits lower case.
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 ]
Today's Featured Article - A Lifetime of Farm Machinery - by Joe Michaels. I am a mechanical engineer by profession, specializing in powerplant work. I worked as a machinist and engine erector, with time spent overseas. I have always had a love for machinery, and an appreciation for farming and farm machinery. I was born and raised in Brooklyn, New York. Not a place one would associate with farms or farm machinery. I credit my parents for instilling a lot of good values, a respect for learning, a knowledge of various skills and a little knowledge of farming in me, amo
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[More Ads]
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.
