diff --git a/consensus/block.go b/consensus/block.go
index 5c230b4..2f20298 100644
--- a/consensus/block.go
+++ b/consensus/block.go
@@ -159,14 +159,14 @@ func ValidateBlockReward(minerTx *types.Transaction, height, blockSize, medianSi
 	return nil
 }
 
-// ExpectedBlockMajorVersion returns the expected block major version for a
+// expectedBlockMajorVersion returns the expected block major version for a
 // given height and fork schedule. This maps hardfork eras to block versions:
 //
 //	HF0 (genesis) -> 0
 //	HF1           -> 1
 //	HF3           -> 2
 //	HF4+          -> 3
-func ExpectedBlockMajorVersion(forks []config.HardFork, height uint64) uint8 {
+func expectedBlockMajorVersion(forks []config.HardFork, height uint64) uint8 {
 	if config.IsHardForkActive(forks, config.HF4Zarcanum, height) {
 		return config.CurrentBlockMajorVersion // 3
 	}
@@ -179,10 +179,10 @@ func ExpectedBlockMajorVersion(forks []config.HardFork, height uint64) uint8 {
 	return config.BlockMajorVersionInitial // 0
 }
 
-// CheckBlockVersion validates that the block's major version matches
+// checkBlockVersion validates that the block's major version matches
 // what is expected at the given height in the fork schedule.
-func CheckBlockVersion(majorVersion uint8, forks []config.HardFork, height uint64) error {
-	expected := ExpectedBlockMajorVersion(forks, height)
+func checkBlockVersion(majorVersion uint8, forks []config.HardFork, height uint64) error {
+	expected := expectedBlockMajorVersion(forks, height)
 	if majorVersion != expected {
 		return coreerr.E("CheckBlockVersion", fmt.Sprintf("got %d, want %d at height %d",
 			majorVersion, expected, height), ErrBlockMajorVersion)
@@ -198,7 +198,7 @@ func ValidateBlock(blk *types.Block, height, blockSize, medianSize, totalFees, a
 	recentTimestamps []uint64, forks []config.HardFork) error {
 
 	// Block major version check.
-	if err := CheckBlockVersion(blk.MajorVersion, forks, height); err != nil {
+	if err := checkBlockVersion(blk.MajorVersion, forks, height); err != nil {
 		return err
 	}
 
diff --git a/consensus/block_test.go b/consensus/block_test.go
index 3655815..aba41a0 100644
--- a/consensus/block_test.go
+++ b/consensus/block_test.go
@@ -431,9 +431,9 @@ func TestExpectedBlockMajorVersion_Good(t *testing.T) {
 
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			got := ExpectedBlockMajorVersion(tt.forks, tt.height)
+			got := expectedBlockMajorVersion(tt.forks, tt.height)
 			if got != tt.want {
-				t.Errorf("ExpectedBlockMajorVersion(%d) = %d, want %d", tt.height, got, tt.want)
+				t.Errorf("expectedBlockMajorVersion(%d) = %d, want %d", tt.height, got, tt.want)
 			}
 		})
 	}
@@ -462,7 +462,7 @@ func TestCheckBlockVersion_Good(t *testing.T) {
 					Flags:        0,
 				},
 			}
-			err := CheckBlockVersion(blk.MajorVersion, tt.forks, tt.height)
+			err := checkBlockVersion(blk.MajorVersion, tt.forks, tt.height)
 			require.NoError(t, err)
 		})
 	}
@@ -491,7 +491,7 @@ func TestCheckBlockVersion_Bad(t *testing.T) {
 					Flags:        0,
 				},
 			}
-			err := CheckBlockVersion(blk.MajorVersion, tt.forks, tt.height)
+			err := checkBlockVersion(blk.MajorVersion, tt.forks, tt.height)
 			assert.ErrorIs(t, err, ErrBlockVersion)
 		})
 	}
@@ -504,17 +504,17 @@ func TestCheckBlockVersion_Ugly(t *testing.T) {
 	blk := &types.Block{
 		BlockHeader: types.BlockHeader{MajorVersion: 255, Timestamp: now},
 	}
-	err := CheckBlockVersion(blk.MajorVersion, config.MainnetForks, 0)
+	err := checkBlockVersion(blk.MajorVersion, config.MainnetForks, 0)
 	assert.ErrorIs(t, err, ErrBlockVersion)
 
-	err = CheckBlockVersion(blk.MajorVersion, config.MainnetForks, 10081)
+	err = checkBlockVersion(blk.MajorVersion, config.MainnetForks, 10081)
 	assert.ErrorIs(t, err, ErrBlockVersion)
 
 	// Version 0 at the exact HF1 boundary (height 10080 -- fork not yet active).
 	blk0 := &types.Block{
 		BlockHeader: types.BlockHeader{MajorVersion: config.BlockMajorVersionInitial, Timestamp: now},
 	}
-	err = CheckBlockVersion(blk0.MajorVersion, config.MainnetForks, 10080)
+	err = checkBlockVersion(blk0.MajorVersion, config.MainnetForks, 10080)
 	require.NoError(t, err)
 }