The phrase "a hefty piece" is correct and usable in written English.
It can be used to describe something that is large or substantial in size, weight, or amount.
Example: "The artist created a hefty piece of sculpture that dominated the gallery space."
Alternatives: "a substantial amount" or "a large portion".
That's a discount package, but it's still a hefty piece of change in a sour economy.
WorldWide Telescope requires downloading a hefty piece of software, and it runs only on Microsoft Windows.
They would never leave the corporate lending business entirely, since it still accounts for a hefty piece of their profits.
I concede that it wasn't quite the same as a hefty piece of pork, almost limp from the heat and soaking in sweet, viscous juices.
Main courses are impressive, too: a hefty piece of grilled tuna is enhanced by a fine sweet-and-sour sauce and the short ribs are so rich and wonderful you can't help hoping the weather will turn cold again.
The Mental Capacity Act 2005 (which is the key piece of legislation in my field) is a hefty piece of legislation in itself – but its supplementary code of practice runs to over 300 pages.
Mr. Edelman asserted that the Met's own investigation into the accident, while Ms. White was performing as Marthe in Gounod's "Faust," showed that the platform had collapsed because it was held together with a window hinge instead of a heftier piece of hardware.
Postal workers, refuse collectors, crossing patrol attendants and the local branch of Sainsbury's could also play pivotal roles, according to Connected Communities, a hefty new piece of research published today by the RSA.
The Mini's box contains a hefty 1,077 pieces (a daunting count to a novice, but a trifle to enthusiasts who survived Lego's 4,295-piece Tower Bridge kit, or 5,195-piece 5,195-pieceFalcon kit).
The Romain Jerome PAC-MAN watches will be limited to 20 total pieces with a hefty price of $17,800.
But it comes at a hefty price.
