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    Mercruiser 4.5 versus Chevy vortec Base 4.3

    But that is not my question My question is where did they gain the stroke in a 4.5 l it is 2 in greater and stroke I don't know if they increase the rod or the crankshaft throw I'm taking the rotating assembly out of a 4.5 because it is forged and putting it in a 4.3 so I can turbo it
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    Mercruiser 4.5 versus Chevy vortec Base 4.3

    I don't know if you're only about mechanic or if you build cars too but everybody knows there are two ways to build a stroker motor you either want a high RPM stroker motor or high torque stroker motor, if you want to increase the torque of an engine you add the increase stroke to the...
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    Mercruiser 4.5 versus Chevy vortec Base 4.3

    Rrod length absolutely changes stroke, ie: say you have a crank that has a 3-in stroke and you add a rod that has a 4-in stroke you now have a 7-in stroke
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    Mercruiser 4.5 versus Chevy vortec Base 4.3

    So I've been doing research and I know that the 4.5 mercruiser is based on the 4.3 V6 Chevy but mercruiser cast their own block I've also figured out that it has a longer stroke My question is did they achieve the longer stroke with a longer rod or a crankshaft with more throw ie is the...
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