kaiser supersonic head |
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silverbullet72tnt
Member Joined: 20 Oct. 2010 Location: Littleton NH Status: Offline Points: 543 |
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Posted: 26 Oct. 2011 at 4:12pm |
Both of my flatties, that came from different states, The 47 from texas 20 years ago and the 51 from NH. Both have kaiser supersonics heads on them. Is this a common find?
Interesting to note my 47 has an early timing chain motor as well. |
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samcj2a
Member Sponsor Member x 5 Joined: 21 Oct. 2006 Location: Arlington, VA Status: Offline Points: 8549 |
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Finding a 2A with a Supersonic head is not uncommon, but I would not say it is a frequent occurrence.
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lowenuf
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plz share with Sean your 47 chain motor numbers......you might have one of the Willys recognized chain replacement motors.....
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45 #10012
45 #10033 ACM #47 45 #10163 ACM #188 57 CJ5 Dauntless V6, T-18 4-speed, D-44 rear/D-30 front, D-20 twin stick |
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silverbullet72tnt
Member Joined: 20 Oct. 2010 Location: Littleton NH Status: Offline Points: 543 |
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I will try fo the numbers later on tonight if I get up to where the motor is. The numbers off the block and the waterpump right? mine is an early 47 if that matters
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munkjeep
Member Joined: 01 July 2008 Location: Central, KY Status: Offline Points: 322 |
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I have owned 20 flatfender jeeps and only one had a Supersonic head on a MB motor, so maybe not too common or not too rare .
Edited by munkjeep - 26 Oct. 2011 at 11:52pm |
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Carlsjeep
Member Joined: 15 Jan. 2011 Location: Taylorsville Ky Status: Offline Points: 2642 |
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What is a Supersonic head?
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samcj2a
Member Sponsor Member x 5 Joined: 21 Oct. 2006 Location: Arlington, VA Status: Offline Points: 8549 |
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Kaiser built some cars in the 1950s, I believe, that used a version of the L-134 and had a cylinder head having Kaiser Supersonic cast on the head. I'm not sure if there was a functional difference. |
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DiverDownJames
Member Joined: 14 July 2011 Location: East Lansing MI Status: Offline Points: 538 |
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isn't the combustion chamber shaped differently for more HP, (about 5 I think)?
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samcj2a
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You'd think if Kaiser presumed to put a designation like that on the engine that they'd have done something different, but I'm no expert on those engines.
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DiverDownJames
Member Joined: 14 July 2011 Location: East Lansing MI Status: Offline Points: 538 |
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http://www.earlycj5.com/forums/showthread.php?7101-Kaiser-supersonic-head
7.5:1 Compression http://en.wikipedia.org/wiki/Willys_Go_Devil_engine 6.45:1 Compression for L-Head 4 So there would be some performance gained with a supersonic head. It could be a head swap from a jeepster, because I know some of them had supersonics. |
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ralf
Member Sponsor Member x 2 Joined: 06 May 2008 Location: Fayetteville WV Status: Offline Points: 4861 |
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I just put a Supersonic head that I picked up from a member on my 1945 MB block. looks good but have not started it. There is a difference in the combustion chambers.
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1947 CJ2A
1948 CJ2A 1953 Ford NAA Golden Jubilee Tractor 1941 J-3 Cub 1957 Farmall Cub Low Boy tractor 1942 Clarktor WW2 tug |
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silverbullet72tnt
Member Joined: 20 Oct. 2010 Location: Littleton NH Status: Offline Points: 543 |
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Both of my motors came with them installed. My dads 51 M38 has a willys head. When we rebuild I am gonna check out the differences.....
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rocnroll
Member Sponsor Member Joined: 20 July 2005 Location: Tuscumbia, AL Status: Offline Points: 13563 |
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I'd be willing to bet you won't feel the difference in the seat of your pants.
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'47 CJ2A PU
'48 CJ2A Lefty "Common sense is not that common" |
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silverbullet72tnt
Member Joined: 20 Oct. 2010 Location: Littleton NH Status: Offline Points: 543 |
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I bet I wouldn't either......
I just want to see the physical difference |
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sean
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Search for "supersonic": lots of prior discussion & photos
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silverbullet72tnt
Member Joined: 20 Oct. 2010 Location: Littleton NH Status: Offline Points: 543 |
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No numbers on the waterpump boss. Would the numbers on the bottom starter side of the block help identify this? |
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sean
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Yes, but ya need more than just that. Check for everything listed here: http://www.thecj2apage.com/forums/another-engine-block-survey_topic18318.html |
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silverbullet72tnt
Member Joined: 20 Oct. 2010 Location: Littleton NH Status: Offline Points: 543 |
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ok, I went and got all the numbers I could. I didn't want to put them
into your data base, as I belive the block is not even close to
correct.....
Block number on side by starter 636953 w2 NI CR N2 Date is the non clock style 11-22 Has the small w/p boss with no numbers, they are on the side pad: 440-37-595 Oil pan flange numbers are 11 30 39 Not sure but I think the block is too old to be a replacement motor from the factory, I am guessing somebody got it out of an older willys car or something at some point in the jeeps life. If only the little guys could talk.... |
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