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Ships within 48 hours · Estimated delivery Aug 31 - Sep 5
The Speedmaster block is ready for the street racer or all-out racer with added strength and cubic inches
Speedmaster planetary gear sets have an extremely stout output shaft
In many performance applications
They come with a chrome hold-down
Chevy BBC 454 Aluminum Complete Serpentine Engine Pulley Kit - Polished The Speedmaster block is ready
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![SS 70945 229 [3.8L]](https://cdn.shopify.com/s/files/1/0600/0115/7252/products/SS70945.jpg?v=1665410833)
