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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
 
1.
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
 
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
 
3.
Harbor Rd in hunters point, san francisco.
U Know how we do it on the Big block, BIG BLOCKIN' IT! WHAT IT DO NIGGA!!!
by aempirei November 30, 2005