09-17-2020, 05:22 PM
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CC Member
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Join Date: Dec 2001
Location: Louisville,
KY
Cobra Make, Engine: I'm Cobra-less!
Posts: 9,417
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Not Ranked
Quote:
Originally Posted by Grubby
Why did you go with that size engine? Is it to meet some class rules?
John
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I like shorter strokes on engines that see higher rpms for long periods at a time. It has nothing to do with longer strokes not being able to rev, but it has a lot to do with longevity of the engine. A shorter stroke has less piston speed and a shorter stroke has less weight to throw around, so it's easier on bearings. This engine wants to live in the upper rpm range. It made 664 hp @ 7000, but was still gaining horsepower.
The owner is an older gentleman and just wanted an engine that makes plenty of power but is easy to maintain and doesn't require a lot of freshen ups.
This is a 4.350" x 3.780" combination. It's the shortest stroke that Scat would let me make on a custom 4340 crankshaft. |
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