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DART Iron Eagle Ford; 302 Mains FORD 302 SM BLOCK

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Part #: 31384275
Notes: Iron Eagle Ford
302 Mains
MSRP: $3,170.80
Your Price: $2,781.77
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Cyl Bore 4.125in
Deck 8.2in

This Item Also Available In

Part Number Price Notes & Specs
31354175 $2,366.90 Notes Iron Eagle Ford Sportsman
302 Mains
Cyl Bore 4.000in
Deck 8.2in
31355235 $2,336.69 Notes Iron Eagle Ford Sportsman
302 Mains
Cyl Bore 4.125in
Deck 9.5in

All Fitments

Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes

Product Description

Dart Iron Eagle Sportsman blocks for small block Ford engines are powerful, competition blocks that offer racers the features they need while remaining affordable.


  • Siamesed cylinders: Standard 4.000” or 4.125” cylinders can be safely bored to 4.165” diameter. Ductile iron sleeves and extra thick walls prevent cracking and produce excellent ring seal.
  • Multiple deck heights allow for increased displacements of up to 468 cubic inches.
  • Scalloped outer water jacket walls improve coolant flow around the cylinder barrels to prevent detonation, extend engine life and produce consistent cylinder temperatures.
  • Ductile iron front and rear 2 bolt main caps with 4 bolt interior main caps. Rear cap uses standard one piece seal.
  • Two main bearing diameters 302 (2.249”) or 351C (2.749”) allow choice of small or large journal camshaft.
  • Stock components make Dart blocks a direct replacement for most production small blocks. Provisions for stock motor mounts, accessory drives, smog pumps, starter brackets, oil pans and pumps.
  • Upgraded oiling system has a complete stock type system plus a low restriction priority main oiling system with front and rear external oil pump feeds.
  • Dual crossovers allow oil flow to be metered with restrictors for roller lifter cams and/or rocker roller arms to reduce oil flow and windage.
  • Reinforced head bolt bosses are blind tapped to prevent leaks and produce accurate torque readings. Extra thick decks prevent head gasket leaks.
  • Standard camshaft and camshaft drive can be used. Lifter valley has bosses for production hydraulic roller lifters.

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