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Posted by Chewie [207.199.226.9] on Saturday, March 31, 2012 at 15:34:44 :
In Reply to: guess you guys want me posted by clueless [201.202.29.210] on Saturday, March 31, 2012 at 11:04:26 :
Re: interchangable engine parts
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Yes ... the engines are alike and interchangeable.
They used the same block casting bored to 3 3/8 for the smaller engines, 3 7/16 for the larger.
They also used different stroke crankshafts, 4 1/16, 4 1/8, 4 1/4, 4 1/2, and 4 3/4. Each crankshaft had its own rods, the longer the stroke the shorter the rods. This means you can use the same piston with any crankshaft as long as it fits the bore of the block.
By mixing and matching different bore and stroke they got 218, 228, 237, 251 and 265 cu in engines out of one basic engine.
From the AAC forum. I have no personal experience with this, but it makes sense. One thing though, I believe a shorter stroke will rev higher than a longer stroke.
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