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this first all aluminum block pictured is going into a 61 Impala race car. An iron version is being put together with a single turbo!

umm don't assume. The block is big. Finished boring will have them at 4.5" with room to go to 4.625" :stare

Good question. Looks like alloy block will be under $5k. The iron version will be under $3k. The iron version of this block will be safe out to 4.625" bore and can swing a 4.25" crank easily will...

its the first rough casting of an all aluminum 409 block. Hasn't been machined yet obviously. This guy has enough room to stroke it to 565 inch.

canted deck surfaces and it sure looks like a light colored metal? Hmm :shades

http://i134.photobucket.com/albums/q90/JIMKWI/brw1.jpg