The phrase "a substantial bloc" is correct and usable in written English.
It can be used to refer to a significant group of people or entities that share common interests or goals, often in a political or organizational context.
Example: "The committee was influenced by a substantial bloc of members advocating for environmental reforms."
Alternatives: "a significant group" or "a considerable faction."
There is a substantial bloc of clerical resistance to any change.
That possibility helped opponents of the change muster support from a substantial bloc of Conservative lawmakers.
Yet free elections will certainly confer legitimacy on the Brotherhood and award them a substantial bloc of parliamentary seats.
And Nevada is the first state among these early nominating contests to include a substantial bloc of Mormons, who amounted to 26 percent of the state's Republican caucusgoers in 2008 and not surprisingly went solidly for Mr. Romney, who shares their religion.
And Nevada is the first state among these early nominating contests to include a substantial bloc of Mormons, who amounted to 26 percent of the state's Republican caucus-goers in 2008 and not surprisingly went solidly for Mr. Romney, who shares their religion.
Granted, many of these states are small and politically inconsequential, but taken together they constitute a substantial bloc of federal power.
They constitute a substantial voting bloc, but, sadly, their aspirations have often been exploited for political gain.
But developing nations, which make up a substantial voting bloc on the fund's board and double as borrowers, do not want to pay more for their loans or to agree to apply for help less often.
The parliament that met in mid-May had a substantial democratic bloc that, with the defection of numerous communist deputies from strict party discipline on particular issues, reduced the CPU's core majority to 239 of the 450 members.
It's hard to imagine today what a Republican presidential race would look like without such pandering, due to the simple fact that conservative Christians constitute a substantial voting bloc.
Smartly, he appealed to Miami's substantial bloc of Cuban-American voThursdayrsday night, dominating Trump on questions about US diplomatic ties with Castro & Co.
