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| Just wondering how radical of an engine that I could build and it still be usable as a weekend cruiser. Not a daily driver, but still capable of making a long trip 500 miles without issues. I am wanting to build a stroker with some where in the neighborhood of 350 hp. How realistic is this? I would love to see the aluminum head become available before spending the money on having major head work done, but I guess you all are still waiting too. All opinions would be greatly appreciated. Thanks, Matt
Don't get mad, don't get even, get far, far, far ahead.. Matt, Maryville, TN |
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| | | Supreme Being
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| Well, mine should be in the area of 320hp. It's really just a cam swap if I want more. Unfurtunately a cam swap is not as easy as it sounds with these motors. 350hp should be easy to achieve and reliable. Mummert's street port is a good value and will easily give you the capability of 350hp.
Norcross, GA |
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| So maybe even up to 400hp is obainable with reliabilty? I saw the dyno reports at Mummert's, I thought those may be race engines that were producing 400 hp. would the stock radiator support enough cooling?
Don't get mad, don't get even, get far, far, far ahead..Matt, Maryville, TN |
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| | Conrad, According to the formula based on speed vs weight, my F code makes 344 rear wheel hp or 400+ at the flywheel. I drive all over the place in the summer. Runs fine on 93 octane if I don' abuse it. Runs better on 100 octane.
Frank/RebopBristol, In ( by Elkhart) 
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| | Matt, In case you are not aware, the F-code is supercharged. Once your pushing 400hp, naturally aspirated, the idle and power characteristics may not be favorable for the street. This is subjective and varies from person to person. But it sounds like this will not be much of a concern for your intended use. Looking at the compression ratio, stroke, and cam for the 400hp dyno, I would call it a racing engine. I bet it sounds good!
Norcross, GA |
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| Supercharged sounds good, but I bet you cant find them very often. I wonder how hard it would be to adapt a modern paxton up? Has any one seen this done? But then I guess it wouldnt quite be era correct then would it.
Don't get mad, don't get even, get far, far, far ahead..Matt, Maryville, TN |
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| The octane level of the fuel is the basic limitation for power output and keeping it drivable. 340-350 horsepower seems to be the standard limit for the normally aspirated versions of the Y. If you supercharge or turbo charge, then higher power levels are attainable and can still run on pump fuel.
  Lorena, Texas (South of Waco)
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| | Matt, There are blowers around, but they aren't cheap! Paxton -McCullough offered a kit to use the VS 57's on Y blocks in '56 so that's another possibility, and there's no reason not to use a later SN 60 or 89 that I can think of. Might actually be cheaper to build than an all out stroker motor.
Frank/RebopBristol, In ( by Elkhart)
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