Dart Machinery, LTD. stands behind each product we manufacture 100%. Each component undergoes a detailed manufacturing process that involves the hundreds of calculated and precision steps to ensure the finest quality possible.

Warning This product contains chemicals known to the State of California to cause cancer and reproductive harm. www.P65Warnings.ca.gov


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Designed for high performance and heavy duty applications, the SHP block is the ideal starting point for hot rodders, drag racers, circle track competitors, off-roaders, and high performance marine enthusiasts.

The SHP Ford block is tailored to the most popular performance and racing applications, with an 8.200” (302), 9.200″ (351c) or 9.500” (351w) deck height and a choice of 4.000” or 4.125” siamesed cylinder bores which can safely be bored to 4.185”. Steel main caps are splayed 4-bolt on the center three and 2-bolt on #1 and #5, and utilize 1/2” bolts. The valley is machined to accept factory roller lifter guides and retainer (spider).


• Priority main oiling system directs oil to main bearings first for more dependable lubrication.

• Available with an 8.200” (302), 9.200″ (351c) or 9.500” (351w).

• Provisions for OE stock roller lifters, dog bones & spider.

• Siamese bores 4.000” or 4.125” (unfinished) with extra thick cylinder walls.

• Extra thick decks ensure reliable head gasket seal.

• Blind head bolt holes don’t go through to water jacket.

• Steel 4-bolt main caps on #2, 3 and 4 with splayed outer bolts. 2-bolt main caps on #1 and 5.

• Can use most stock components and accessories.

• Scalloped water jackets increase coolant flow around cylinder barrels to prevent detonation, extend engine life and produce consistent cylinder temperatures.

• Parts kit sold separately (PN 32000015).

SHP (Special High Performance) – Iron

31364175 – 302 SHP Steel 302 8.200 4.000

31364275 – 302 SHP Steel 302 8.200 4.125

31365135 – 351 SHP Steel 351C 9.500 4.000

31365235 – 351 SHP Steel 351C 9.500 4.125

31365195 – 351 SHP Steel 351C 9.200 4.000

31365295 – 351 SHP Steel 351C 9.200 4.125