Sealed Power H693CP60 Pistons for Cast Applications

Speed-Pro hypereutectic pistons offer an unbeatable combination of performance and value, making them an excellent choice if you're looking for high-quality pistons. These pistons are compatible with Chevrolet Chevy BB 454 7.4 7.4L engines and come in a set of 8.

The pistons feature a bore size of 4.310" (at +.060"), ensuring a precise and secure fit. The domed head design, standing 0.210" high (22.0cc), provides an impressive compression ratio. The compression distance measures 1.640", and the pin diameter is 0.989" (included), with the option of either press-fit or floating configuration.

The ring lands on these pistons are designed with a 5/64"-5/64"-3/16" configuration, optimizing engine performance and efficiency. They are suitable for use with a stock 4.000" stroke crankshaft and stock 6.135" length connecting rods.

One of the standout features of these pistons is the DurOshield Coated Skirts, which enhance durability and reduce wear, ensuring a longer lifespan for your engine components.

The compression ratio for these pistons can be calculated based on the chamber volume. With a 106.9cc chamber, the compression ratio is approximately 10.32:1. For a 109.4cc chamber, the ratio is around 10.09:1. In a 116.9cc chamber, the compression ratio is approximately 9.48:1, and in a 119.0cc chamber, it is approximately 9.32:1.

It's important to note that these pistons are designed for use in the 1970 Car 454-LS6 model and should be used in sets only for optimal performance and reliability.

In summary, the Speed-Pro hypereutectic pistons offer a superior combination of performance, value, and durability, making them an excellent choice for Chevrolet Chevy BB 454 7.4 7.4L engines. With their precise fit, advanced design, and enhanced coating, these pistons are sure to provide a reliable and efficient upgrade for your engine.

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