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Re: Thunderbolt engine
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Home away from home
 
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Quote:
As far as I know are 3 "standard" compression heads used in the 51-54 production run for the 327/288 Motors: Kev do you know what the compression ratios would be with the three heads mounted on a 327 engine?
Posted on: 2008/9/11 22:19
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Re: Thunderbolt engine
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Forum Ambassador
 
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Bob, why don't you just browse the 48-54 parts manual available on this website. There are about 32 different cylinder heads listed, a few too many for me to type out. For 1954 the standard heads (excluding export and specials) were 7.7 for the 288, 8.1 for the 327, and 8.7 for the 359.
Posted on: 2008/9/11 22:36
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Re: Thunderbolt engine
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Home away from home
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Good idea. I'll do it. Thanks.
Posted on: 2008/9/14 22:55
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Re: Thunderbolt engine
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Home away from home
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my 52 has a 288 Thunderbolt AT engine. the head says such. by the way i am looking for a 327 Thunderbolt AT "K" engine for my 52 200 Deluxe to put the right motor that came with the car. with 12 " plate UltraDramatic trans..
if you or anybody hear of anything let me know. i say one for say a while back but i was not buying then. thanks Attach file:  (37.06 KB)
Posted on: 2012/5/31 13:46
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Re: Thunderbolt engine
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Webmaster
 
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Never trust the marking on the head as to what the bottom end is. The heads are interchange. For example my '54 Motor has a '51 288 AT on it.
The number on the side of the actual block will tell you what the motor really is. The head may have just been replaced on it.
Posted on: 2012/5/31 14:39
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-BigKev
1954 Packard Clipper Deluxe Touring Sedan -> Registry | Project Blog 1937 Packard 115-C Convertible Coupe -> Registry | Project Blog |
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Re: Thunderbolt engine
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Forum Ambassador
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And to take Kev's post further, there is a factory bulletin authorizing and elaborating on which head to use on which engine to change compression ratios from stock. The 288/327 AT/ S or MT cast on head is meaningless to determine size.
Posted on: 2012/5/31 15:10
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Howard
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Re: Thunderbolt engine
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Home away from home
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it's a 51 288 . so says the stamping on the block " J" not the " K " i am looking for
Posted on: 2012/6/2 16:38
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Re: Thunderbolt engine
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Home away from home
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Quote:
Wouldn't the correct engine for a 1952 200 Deluxe be a 288 cid with a K2xxxxx serial number? To echo Kev & Howard, cyl heads are plentiful and were often replaced (especially on the 1954 359 cid). I believe the 51 & 52 288 engines were pretty much the same...other than the J or K stamp on the block.
Posted on: 2012/6/2 18:47
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Re: Thunderbolt engine
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Home away from home
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my research says a 327 "K" . god knows i could be wrong.
Posted on: 2012/6/3 15:29
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