Chevy Big-Block Engine Parts Interchange
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John Baechtel. Chevy Big-Block Engine Parts Interchange
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Introduction
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When used for racing and high-performance applications tall-deck blocks lend themselves handily to stroker applications. They also provide the opportunity to jockey rod length, piston compression height, and ring position to suit your specific needs. Because they are intended for heavy-duty use, all tall-deck blocks have four-bolt mains, extra-thick cylinder walls, and provisions for oil coolers. If you plan a stroker application with one of these blocks make sure you check for adequate pan rail clearance, as these blocks are not relieved for strokers. Also note that raised cylinder heads alter header or exhaust manifold location in the engine compartment, possibly leading to fitment issues.
Tall-deck combinations are plentiful. You can build a broad variety of stroker combinations wrapped in a heavy-duty package that is both powerful and durable. If you’re starting from scratch consider a Bowtie tall-deck block that is already configured to accept stroker cranks without interference problems. Moreover, if you’re handy with a calculator you can brainstorm pin height, rod length, and stroke length to discover new and potentially beneficial combinations. Remember, at the top of the stroke you have to factor in some reasonable combination of rod length, one-half of the stroke length, and a piston pin compression height that fits within the established deck height and accommodates the ring package you intend to use.
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