Donovan Engineering Aluminum Big Block

Donovan Engineering’s Big Block aluminum engine blocks are available in four basic configurations.

D500, and Raised Cam: RC 600 /HC 700/HC 800

Each block is custom-made to suit each engine builder’s requirements, and comes with:

  • Head Stud Kits — studs, nuts, and washers
  • Block Kit — core plugs, dowel pins, etc.
  • Ductile Iron Sleeves
  • Main Caps with studs, nuts and washers

High Cam blocks raise the cam either 0.400″ on RC 600 and HC 700, or 1.000″ on the HC800 to allow for stroker cranks.  Special cam bore sizes are available upon request.

Deck Heights on D500 and RC 600 can range from 9.800″ – 10.300″.  The HC700/HC800 Raised Cam blocks can have deck heights from 11.100″ to 11.625″.

A special short-deck casting in the HC700 is also available.

Lightweight is done by special request only, and is recommended for static show cars/trucks/marine applications only.

Be sure to visit each block’s page for more details:

Click for larger image.

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