Donovan Engineering Quality by Design!

Donovan Engineering has been making aluminum racing engine blocks for over 30 years. For leading race engine builders who win by design, Donovan gives you the finest materials and latest engineering.

Each Donovan block is cast from strontium-modified B356 alloy with special heat treat. A 2001 horizontal machining center assures the tightest tolerances and latest machined surfaces.

All blocks share these features:

Choice of Castings:

  • Full-Water
  • Half-Water
  • Solid

Donovan Engineering Main Caps

  • Main Caps - Ductile Iron 4-Bolt
  • Fastener Grade 16 studs, nuts, washers
  • Angle studs with hex heads for easy removal

Donovan Engineering Cylinder Sleeves:

  • Ductile Iron Centri
  • Removable and Replaceable
  • Dry Sleeve is surrounded by cast aluminum
  • All bore sizes undersize for finish hone by builder
  • Recommend finish decking by builder

Donovan Engineering Head Stud Kit

Each block comes with:

  • Grade 16 studs
  • Studs manufactured in-house
  • 12-point nuts
  • Heat treated and ground washers


Donovan Engineering Small Parts Kit

Each block comes with:
  • Water core plugs with O-rings
  • Head dowels
  • Bellhousing dowels
  • Bronze cam thrust shim

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Donovan Engineering Corp. | 2305 Border Ave., Torrance, CA 90501-3614 USA | +1 (310) 320-3772 Voice, +1 (310) 320-1090 FAX

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