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04-02-2020, 11:00 AM | #1 |
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Cracked head- pic
Two cracks from bolt hole to water jacket, nothing to the cylinders
Is this head any good to use? Your opinion matters.
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Keith Shawnee OK '31 SW 160-B |
04-02-2020, 11:05 AM | #2 |
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Re: Cracked head- pic
I would look for a better one,bought them for $10.00.
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04-02-2020, 11:13 AM | #3 |
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Re: Cracked head- pic
Time to replace with a higher compression head , now that the cracked original head is removed .
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04-02-2020, 11:28 AM | #4 |
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Re: Cracked head- pic
Which head would be better for me, the high dollar 6/1 or the 5.5/1
Keep in mind I'm not racing or touring, just cruising around town checking out the old women, why old women...because they tire easily.
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Keith Shawnee OK '31 SW 160-B |
04-02-2020, 11:35 AM | #5 |
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Re: Cracked head- pic
I'm not racing either but I would prefer the 6 to 1 head for the extra power for the hills and passing when necessary .
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04-02-2020, 11:58 AM | #6 |
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Re: Cracked head- pic
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Mike
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1930 TownSedan (Briggs) 1957 Country Sedan |
04-02-2020, 11:59 AM | #7 |
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Re: Cracked head- pic
You might as well go for the 6:1, more bang for your buck. Not a lot of people buy the 5:5 anymore.
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04-02-2020, 12:00 PM | #8 |
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Re: Cracked head- pic
Yours is probably OK to use as-is. This is a common place for them to crack, it is not in a area where high pressure is found.
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04-02-2020, 12:45 PM | #9 |
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Re: Cracked head- pic
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04-02-2020, 01:19 PM | #10 |
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Re: Cracked head- pic
I agree with Jim and Dave. Would not hurt though to use some sealant around the stud just below the head nut.
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04-02-2020, 03:07 PM | #11 |
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Re: Cracked head- pic
Higher compression head to get away from older ladies husbands ! I would go with the pros on reusing the head, if money is a problem.
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04-02-2020, 03:16 PM | #12 |
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Re: Cracked head- pic
this is what i have gleaned from years in the parts business. People always call and ask which head should i put on my car. The first question i ask is what is the babbit like on the bottom end. If you put one of those heads on and the babbit isn't good you will beat the babbit. I cannot tell you how many guys i talk to purchase either the 5.5 or 6:1 head and a couple of weeks later call and order a bunch of engine parts because they beat the babbit out of the bottom end.
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04-02-2020, 03:22 PM | #13 |
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Re: Cracked head- pic
That is an early head on a later block. You could re-use it or find another original head, or as others have said if you have good bearings buy a new head.
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04-02-2020, 03:29 PM | #14 |
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Re: Cracked head- pic
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04-02-2020, 04:23 PM | #15 |
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Re: Cracked head- pic
IMO, you'd be nuts to buy the 5.5 when the 6 is the same price. I agree with the few above, that your head is usable. But, with the opportunity the head being off, I'd go for the 6:1 head. Yours is a good candidate to be one with weeping problems. Your water holes show a lot of rust.
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04-02-2020, 08:16 PM | #16 |
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Re: Cracked head- pic
I had one cracked in the same location and had the same questions you have. I finally decided that the crack was where the compression leak into the water jacket was occurring--and I know it does not look like that is possible. But I really did not find any other place the head gasket was leaking.
I ultimately did not try to re-install my cracked head. I bought a stock, used head from James Rogers at Dreamwerks, cleaned, magnafluxed, re-surfaced and ready to paint and install for a very reasonable price. Best decision in my situation. See the old thread: https://www.fordbarn.com/forum/showthread.php?t=167112 W. Michael |
04-02-2020, 09:55 PM | #17 |
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Re: Cracked head- pic
Yes that head you show is fine to use,for grins I use my thumb and push at little sealant in the crack and wipe it off flush with the head...The snyder 5.5 is a copy of Ford engineerings heart shaped combustion chamber used on the 'police' head in 1931..the actual difference in the seat of the pants from 5.5 to 6 to 1 is negligible,especially if everything else is stock..
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04-03-2020, 08:07 AM | #18 |
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Re: Cracked head- pic
I originally bought the Snyders 5.5 head and installed it. I was so impressed with the performance, better hill climbing, faster pickup, that I sold it and installed the Snyder 6.1.
I am very happy I changed it out. There was a noticeable difference from the 5.5 vs 6.1. Although not as noticeable a change as was the original 4.2 to 5.5 swap. I can not imagine what a 7.1 head would be like. If someone made one that looked original i would go for it. |
04-03-2020, 08:22 AM | #19 |
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Re: Cracked head- pic
Bottom end is good. so I have the 6.1 head on the way, I'll keep the old head for a spare, instead of a boat anchor.
Thank you all for your input, what would we do without each other?
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Keith Shawnee OK '31 SW 160-B |
04-03-2020, 08:37 AM | #20 | |
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Re: Cracked head- pic
Quote:
Tod Buttermore is making them now,brand new |
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04-03-2020, 08:37 AM | #21 |
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Re: Cracked head- pic
I had the same crack, used it as an excuse to get a 5.5 head back in 2015. 4 years later the engine needed a babbit job. Rebuilder said it would have needed it either way though. With a known good bottom end 6:1 is a no brainer.
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04-03-2020, 09:33 AM | #22 | |
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Re: Cracked head- pic
Quote:
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04-03-2020, 11:04 AM | #23 |
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Re: Cracked head- pic
This may go without saying, but less spark advance (timing) is needed with a higher compression head. If a person runs with the timing lever in the same position as before, he will pound out the Babbitt from detonation.
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04-03-2020, 04:07 PM | #24 |
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Re: Cracked head- pic
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04-04-2020, 05:06 PM | #25 |
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Re: Cracked head- pic
Does anyone have a picture of the Tod head? What is the cost?
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04-04-2020, 06:42 PM | #26 |
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Re: Cracked head- pic
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Its a direct copy of the Winfield red head,cc's out with a bored over engine at 7.9 to 1..contact him for pricing and availability. |
04-07-2020, 11:45 PM | #27 |
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Re: Cracked head- pic
UPDATE:
Have a new cam on the way, manifold, lifters, guides, gaskets, head, head bolts and a lot of related items all here. Oil pump is done and ready to go. What should have been a quick head gasket and adjust valves job has turned into all this...
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Keith Shawnee OK '31 SW 160-B |
04-08-2020, 10:06 AM | #28 |
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Re: Cracked head- pic
Everyone seems so excited about the high compression heads. If you don't have a lot of hills to climb, why to you need them. I have had two of these original "B" high compression heads and both of them ended up having leaking head gaskets. I would guess that they also put more stress on your rod bearings. I often ask, how fast do you really want to go in a Model A? I know, I am the white haired guy holding up traffic! Ed
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04-08-2020, 07:29 PM | #29 |
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Re: Cracked head- pic
Mine has similar crack in same location, run it for years without problems....
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