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A "big block" is an engine that has a deck height(distance from crank bearing centerline to the top of the block) that is greater than 9.8 inches. An example is GM has a 400 SMALL block and a 400 BIG block.
big block=383,396,400,413,426,454
small block=302,305,318,327,350,351,360,400
by Jagged Joe October 23, 2006
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2
A fat girl.
A over healthy girl.
Extremely impolite: A big bitch / A fat bitch.
Or one of the opposite sex that does not appeal to your taste because of the massive body size he or she may possess.
1. Damn look at that big block!

2. Girl 1- Damn he is fine!
Girl 2- Why in the hell is he with that big block!

North Carolina Slang
by International T October 11, 2006
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3
U Know how we do it on the Big block, BIG BLOCKIN' IT! WHAT IT DO NIGGA!!!
by aempirei November 30, 2005
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4
A piston engine which has a displacement of 6.0 liters or more , often in the form of a V8.
The LS7 in my car is a big block, it has more then 7 liters in displacement.
by MikeJones818 May 03, 2006
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5
In many cities, the size of each city block is standardized. There may be 8 or 10 blocks per mile, for example, in the downtown area. In many suburbs, or other areas, you will find places where you would expect there to be a cross-street, but it was omitted, leading to an extra-long walk or drive before encountering a cross street. This is described as a "big block," so you know what to expect when you are in the area.
Get off the bus at the hospital. You'll need to walk three big blocks south until you get to Elk Grove Avenue, my street.

I love walking in Rio, because it has such big blocks, full of nice buildings!
by Embroidery Fan June 16, 2017
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