With pressed-in dry sleeves, upgraded oiling and steel 4 bolt main caps, Darts aluminum blocks have the features that Ford racers need to build reliable and affordable engines.
Features:
- Premium alloy: Dart aluminum blocks are cast from virgin 355-T61 aerospace alloy for superior strength and integrity.
- 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.
- Scalloped outer water jacket walls improve coolant flow around the cylinder barrels to prevent detonation, extend engine life and produce consistent cylinder temperatures.
- 4 bolt billet steel main caps. Three center caps have splayed outer bolts for extra strength;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.
- 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.
- Includes coated cam bearings, freeze plugs and dowels.
- Machined with front and rear external oil feed, crossover and restrictor provision.
- Dart blocks are available fully finish prepped.
Application:
