削り出しエンジンブロック。
削る前のアルミブロックが重そう。
500pound　＝　225kg

剛性を求めるドラッグレース用エンジンブロックが、アルミブロックからの削り出しであるなら、
ホイールも鍛造削り出しではなく、ブロックからの削り出しでも良いかもしれない。
（レース用はマグ合金ですが）

もっと巨大な工作機械で、自動車のボディを削り出す日もそう遠くないか（笑）
懸案は、素材のアルミブロックをどうやって運ぶか。

Legendary race shop Donovan Engineering has a long history stretching back to the very first aftermarket drag racing engine block. Today, Norman "Woody" Woodruff runs the shop using the latest CAD/CAM tools to ensure their big projects go smoothly. Projects like turning a 500 pound billet into a streamlined Top Fuel dragster engine block.


Dart Machine is one of the the automotive industries true success stories. Take a look inside how Dart designs, engineers, and manufacturers their cylinder heads and engine blocks. From street-oriented blocks, to all-out CNC-machined race blocks, this is a tour that any automotive enthusiast should take.


CNC port cylinder heads, blueprint and CNC machine engine blocks and make all kinds of parts with one machine the CENTROID A560. See the machine in action porting cylinder heads and machining blocks.

Donovan Engineering Building Engine Blocks
http://www.youtube.com/watch?v=z0JW5DuCeK8
Shop Tour: See how blocks and heads are made inside Dart's amazing facility
http://www.youtube.com/watch?v=kvGH1xohqaY
Combo 5-axis CNC Cylinder Head & Block Machining center: The CENTROID A560 Port/Block
http://www.youtube.com/watch?v=mEsuTX6Empc