Hey guys, well what does zero decking a block mean? I have a 454 bored 30 over that was zero decked, what does that mean exactly? Is there a standard of how much metal is removed? If the block was std height before zero decking, what would the height be after zero decking?

"0" deck means the top pf the piston (flat area, not the dome) is flush with the top of the block at TDC. However, unless the shortblock was mocked up, there is no way to know if it is "0" or not. Odds are the deck was cut .020 to 9.780" which in most cases will get you to "0" deck or within .005" depending on the piston compression ht whether it is 1.645 or 1.640.

"0" deck means the top pf the piston (flat area, not the dome) is flush with the top of the block at TDC. However, unless the shortblock was mocked up, there is no way to know if it is "0" or not. Odds are the deck was cut .020 to 9.780" which in most cases will get you to "0" deck or within .005" depending on the piston compression ht whether it is 1.645 or 1.640.


How does that affect the length of the pushrods? Would I still be able to buy std length pushrods?

Yes, you have an adjustable valvetrain, .030 will not require different length pushrods, please tell me you will have help putting this together...

Hey guys, well what does zero decking a block mean? I have a 454 bored 30 over that was zero decked, what does that mean exactly? Is there a standard of how much metal is removed? If the block was std height before zero decking, what would the height be after zero decking?

Take your stroke and devide that by 2 add your rod lenth and your compression height of your piston in most cases and using good parts that should get you with in .002 of zero deck. And thats figured with zero oil clearance as no one thinks about that little issue.