machining a big block 366T

09-26-2006, 04:10 PM

eljblazer

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machining a big block 366T

how far can the 366T BBC be bored out? my buddy's grandfather says that it can be taken out to a .030 overbore 454 and still have pretty thick cylinder walls.

09-26-2006, 05:04 PM

nitro_baller4692 nitro_baller4692 is offline

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re: machining a big block 366T

i believe that the engine can be bored .125''

09-26-2006, 08:41 PM

Bumpstick

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re: machining a big block 366T

The most you might see out of it would be a 396-402 setup... Not a 454 that would take a .250+ overbore... Best to start with a 427-454 block...

09-27-2006, 12:49 PM

53sled

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re: machining a big block 366T

the 366 can't be bored out to 454 size. It would be real thin past 030, not a great block to start with, lots of core shift, and most small blocks can be made BIGGER, cheaper.

09-27-2006, 01:02 PM

k-star k-star is offline

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blocks

Any automotive block that comes from the factory has limits on overbore size.....You can never ever make a blanket statement that any certin block will go .125" over.. IMO any block bored over .060" or more needs sonic checked in a performance application... Stock rebuilds can get away with a fudge factor here...

Keith

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