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Re: Straight Eight engine number/cid
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Forum Ambassador
 
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There are a couple of counselor articles addressing different heads and compression ratios. They are earlier articles but applicable to all the later S8s--except maybe the 359. Check outhttps://www.packardinfo.com/xoops/html/downloads/SC/SC-VOL24NO7.pdf andhttps://www.packardinfo.com/xoops/html/downloads/SC/SC-VOL25NO4.pdf for starters. I believe there is another later one or at least a book article more to your specific question and how heads were marked. Can't think of which or where it is right now. Believe the STD stood for standard trans and the 327 indicated the optional ratio for that engine but don't remember the exact combination.
Posted on: 2011/7/16 15:27
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Howard
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Re: Straight Eight engine number/cid
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Home away from home
 
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Many makers at that time gave their automatic equipped cars slightly more power. This was to compensate for the power lost to the automatic transmission.
One way to do this was increase the compression ratio. A 288 head on a 327 would give more compression. This did no harm as the automatic made it impossible to lug the engine, even for the least skilled driver. So my guess is the same head was used on 288 standard transmission cars, and 327 Ultramatics.
Posted on: 2011/7/16 18:13
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Re: Straight Eight engine number/cid
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Home away from home
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Quote:
Rusty O\'Toole wrote: OK, so the only way to determine the real displacement of this engine is from the number on the left (drivers' side) of the block? Quote: by HH56 on 2011/7/16 13:27:39 Thanks, I'll look up the articles, but not quite clear on the "327 indicated the optional ratio" part, does that mean optional compression ratio?
Posted on: 2011/7/18 21:12
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Guy
[b]Not an Expert[/ |
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Re: Straight Eight engine number/cid
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Home away from home
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HH56,
Not much on the links, unfortunately. They gave a part number for the high-compression head for 288 in the second Service Advisor, but it did not match the number cast into the head (42B409) I mentioned earlier.
Posted on: 2011/7/18 21:27
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Guy
[b]Not an Expert[/ |
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Re: Straight Eight engine number/cid
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Webmaster
 
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Somewhere I posted a list I made of all the p/n's and heads they match as well as what cars they came on. Remember the number on the head is NOT a part number, but is a casting number. So that will not match up to the factory part number list.
Posted on: 2011/7/18 21:31
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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: Straight Eight engine number/cid
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Home away from home
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Thanks, Kev, for verifying that. I'll get back with an engine number.
Posted on: 2011/7/19 18:07
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Guy
[b]Not an Expert[/ |
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Re: Straight Eight engine number/cid
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Home away from home
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Kev & All,
Here's a straight 8 engine number off an engine with no known model year or cubic inch displacement. Can you tell the year and cid from it? h225423 I could not figure out how to hunt down this info on the forum, but would have if I could. Is there a way to do that should I need to in the future?
Posted on: 2011/7/31 16:15
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Guy
[b]Not an Expert[/ |
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Re: Straight Eight engine number/cid
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Forum Ambassador
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The Packard Engine Serial Number Reference in the Packard Literature and Manuals section identifies H225423 as a '49 288, 135hp, 5 bearings, solid lifters.
Posted on: 2011/7/31 16:26
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Mal
/o[]o\ ====  Bowral, Southern Highlands of NSW, Australia "Out of chaos comes order" - Nietzsche. 1938 Eight Touring Sedan - SOLD 1941 One-Twenty Club Coupe - SOLD 1948 Super Eight Limo, chassis RHD - SOLD 1950 Eight Touring Sedan - SOLD What's this?  Put your Packard in the Packard Vehicle Registry! Here's how! Any questions - PM or email me at ozstatman@gmail.com |
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Re: Straight Eight engine number/cid
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Home away from home
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Guy (55PackardGuy), there you'll find related stuff.
Quote: Somewhere I posted a list... Kevin, this way please. Edit: Outpaced by Mal, the Australian tracking dog! 
Posted on: 2011/7/31 16:26
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The story of ZIS-110, ZIS-115, ZIL-111 & Chaika GAZ-13 on www.guscha.de
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