OK all you Mc experts put on your thinking caps. I just dismantled a partial Mc-20 that came with all the stuff I got with the Caretta. Again all these parts are from the late sixties when Cart Labs of Gresham Oregon closed down. Al and Randy Laders dad put all this stuff in the overhead of the garage and they found it for the first time less than two years ago.
OK what I have is a Mc-20 that has been sleeved. In doing so the boost ports were eliminated and the exhaust port looks like a 101B. The bore is 2.125. Al told me his dad had built this engine with a long stroke and a small bore to get low end power. Al said he remembered this thing would pull like crazy off the bottom. Now all I have is the block side bearing plate and the crank shaft.
The crankshaft I took out is a Horstman and the only number on it is a 2 on the side of the counterweight were Mc stamped there part number. I have not checked the stroke on it but wonted to ask if anyone on this site has any info on this crank. Owe by the way its in premo shape.
Turk
Horstman crank shaft
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Dennis Turk
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david a luciani
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Re: Horstman crank shaft
stroker crank.
dave
dave