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I'm a little confused. U are using the term "shim". Are u talking about the shims for lower compression ratio or just the embossed steel head gasket???? I've never heard of a head gasket refered to as a "shim gasket" unless it is to reduce compression. So i'm not sure which part (head gasket OR the shim) that u are talking about.
In the fifty years I've been in and around engine shops, the term "steel shim head gasket" is used interchangeably with "embossed steel head gasket". Your experiences and cognitive vocabulary may vary.
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I don't understand this. These motors are old and boring them out will only shorten the service life and render them unusable.
Packards are collector cars and these days few receiving a rebuilt engine are driven enough to ever require another rebore. In all the years I've built Packard V8s, only one owner has put enough miles on his engine to need it freshened. All the others are still going strong and will outlast their owners.
There are way more engines surviving than Packards to need them. I've had to quit buying core engines because I've run out of space. How many do you want built to your specs?
That the 1956 Studebaker Golden Hawk was the fastest car built that year and showed the Packard V8 has some performance potential is the only thing which first got me interested in these boat anchors.
Packard and Studebaker Golden Hawk owners have been hot-rodding and boring out the Packard V8 since Day One and I'm just carryin' on the family tradition.
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If you like Ultramatic, and Torsion level ride, but don't like the Packard V-8 then why not change the motor to something out of a modern truck?
That's one way to look at it. On the other hand, some of us find other uses for the surplus of Packard V8s. My '55 Studebaker 3/4t truck has a Packard V8 I built to heavy duty truck specs. My '56 Studebaker Hawk has a Latham supercharged engine and I'm looking for a Bonneville Stude to run the full-race Hilborn injected Packard V8 engine sitting on an engine stand in my garage. Several I've built have gone into Studebakers, Nashes, Hudsons and a couple of street rods.
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I think the 352 is the best Packard V-8 because it is not as stressed as the 374.
By that logic, maybe we should all be running the '55 320" 2-bbl single exhaust engines. As far as "stressed", the Packard V8 is so understressed and so hamstrung by the TU transmission, I've never seen any evidence from wear that the 374" is more stressed than the 352". Yes, the higher compression of the '56 engines in general and the 374" in particular does require a more precise tuneup, premium fuel and octane boosters. Preignition and detonation are the only problems the 374" has to a slightly greater degree than the '56 352". Your experiences and results may vary.
jack vines
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