diff --git a/.gitignore b/.gitignore
index 05c143bd4e..136b5da90f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -24,6 +24,7 @@ awscpu
 .idea/
 
 *logs/
+!*customlogs/
 
 .vscode*
 
diff --git a/RELEASES.md b/RELEASES.md
index 1130bc2fa8..6e8f0558b1 100644
--- a/RELEASES.md
+++ b/RELEASES.md
@@ -5,6 +5,7 @@
 - Major refactor to use [`libevm`](https://github.com/ava-labs/libevm) for EVM execution, database access, types & chain configuration. This improves maintainability and enables keeping up with upstream changes more easily.
 - Add metrics for ACP-176
 - Removed the `"price-options-max-base-fee"` config flag
+- Removed extra type support in "ethclient.BlockByHash", "ethclient.BlockByNumber".
 
 ## [v0.15.0](https://github.com/ava-labs/coreth/releases/tag/v0.15.0)
 
diff --git a/core/blockchain.go b/core/blockchain.go
index 83e1277927..566573a1e2 100644
--- a/core/blockchain.go
+++ b/core/blockchain.go
@@ -45,6 +45,7 @@ import (
 	"github.com/ava-labs/coreth/core/state/snapshot"
 	"github.com/ava-labs/coreth/internal/version"
 	"github.com/ava-labs/coreth/params"
+	"github.com/ava-labs/coreth/plugin/evm/customlogs"
 	"github.com/ava-labs/coreth/plugin/evm/customrawdb"
 	"github.com/ava-labs/coreth/plugin/evm/customtypes"
 	"github.com/ava-labs/coreth/plugin/evm/upgrade/acp176"
@@ -594,7 +595,7 @@ func (bc *BlockChain) startAcceptor() {
 		bc.acceptorTipLock.Unlock()
 
 		// Update accepted feeds
-		flattenedLogs := customtypes.FlattenLogs(logs)
+		flattenedLogs := customlogs.FlattenLogs(logs)
 		bc.chainAcceptedFeed.Send(ChainEvent{Block: next, Hash: next.Hash(), Logs: flattenedLogs})
 		if len(flattenedLogs) > 0 {
 			bc.logsAcceptedFeed.Send(flattenedLogs)
@@ -1447,7 +1448,7 @@ func (bc *BlockChain) collectUnflattenedLogs(b *types.Block, removed bool) [][]*
 // the processing of a block. These logs are later announced as deleted or reborn.
 func (bc *BlockChain) collectLogs(b *types.Block, removed bool) []*types.Log {
 	unflattenedLogs := bc.collectUnflattenedLogs(b, removed)
-	return customtypes.FlattenLogs(unflattenedLogs)
+	return customlogs.FlattenLogs(unflattenedLogs)
 }
 
 // reorg takes two blocks, an old chain and a new chain and will reconstruct the
diff --git a/eth/filters/filter.go b/eth/filters/filter.go
index 6239101806..1d037cb37e 100644
--- a/eth/filters/filter.go
+++ b/eth/filters/filter.go
@@ -33,7 +33,7 @@ import (
 	"math/big"
 
 	"github.com/ava-labs/coreth/core/bloombits"
-	"github.com/ava-labs/coreth/plugin/evm/customtypes"
+	"github.com/ava-labs/coreth/plugin/evm/customlogs"
 	"github.com/ava-labs/coreth/rpc"
 	"github.com/ava-labs/libevm/common"
 	"github.com/ava-labs/libevm/core/types"
@@ -342,7 +342,7 @@ func (f *Filter) checkMatches(ctx context.Context, header *types.Header) ([]*typ
 		return nil, err
 	}
 
-	unfiltered := customtypes.FlattenLogs(logsList)
+	unfiltered := customlogs.FlattenLogs(logsList)
 	logs := filterLogs(unfiltered, nil, nil, f.addresses, f.topics)
 	if len(logs) == 0 {
 		return nil, nil
diff --git a/ethclient/ethclient.go b/ethclient/ethclient.go
index 3470ea4d1d..54ec673e6d 100644
--- a/ethclient/ethclient.go
+++ b/ethclient/ethclient.go
@@ -36,7 +36,6 @@ import (
 
 	"github.com/ava-labs/coreth/accounts/abi/bind"
 	"github.com/ava-labs/coreth/interfaces"
-	"github.com/ava-labs/coreth/plugin/evm/customtypes"
 	"github.com/ava-labs/coreth/rpc"
 	ethereum "github.com/ava-labs/libevm"
 	"github.com/ava-labs/libevm/common"
@@ -194,11 +193,9 @@ func (ec *client) BlockReceipts(ctx context.Context, blockNrOrHash rpc.BlockNumb
 }
 
 type rpcBlock struct {
-	Hash           common.Hash      `json:"hash"`
-	Transactions   []rpcTransaction `json:"transactions"`
-	UncleHashes    []common.Hash    `json:"uncles"`
-	Version        uint32           `json:"version"`
-	BlockExtraData *hexutil.Bytes   `json:"blockExtraData"`
+	Hash         common.Hash      `json:"hash"`
+	Transactions []rpcTransaction `json:"transactions"`
+	UncleHashes  []common.Hash    `json:"uncles"`
 }
 
 func (ec *client) getBlock(ctx context.Context, method string, args ...interface{}) (*types.Block, error) {
@@ -267,18 +264,10 @@ func (ec *client) getBlock(ctx context.Context, method string, args ...interface
 		}
 		txs[i] = tx.tx
 	}
-
-	block := types.NewBlockWithHeader(head).WithBody(
-		types.Body{
-			Transactions: txs,
-			Uncles:       uncles,
-		})
-	extra := &customtypes.BlockBodyExtra{
-		Version: body.Version,
-		ExtData: (*[]byte)(body.BlockExtraData),
-	}
-	customtypes.SetBlockExtra(block, extra)
-	return block, nil
+	return types.NewBlockWithHeader(head).WithBody(types.Body{
+		Transactions: txs,
+		Uncles:       uncles,
+	}), nil
 }
 
 // HeaderByHash returns the block header with the given hash.
diff --git a/plugin/evm/customtypes/log_ext.go b/plugin/evm/customlogs/log_ext.go
similarity index 95%
rename from plugin/evm/customtypes/log_ext.go
rename to plugin/evm/customlogs/log_ext.go
index 25fab842e0..49cbff2e61 100644
--- a/plugin/evm/customtypes/log_ext.go
+++ b/plugin/evm/customlogs/log_ext.go
@@ -1,6 +1,6 @@
 // (c) 2019-2025, Ava Labs, Inc. All rights reserved.
 // See the file LICENSE for licensing terms.
-package customtypes
+package customlogs
 
 import ethtypes "github.com/ava-labs/libevm/core/types"
 
diff --git a/plugin/evm/imports_test.go b/plugin/evm/imports_test.go
index 5089605493..a7ee04daa3 100644
--- a/plugin/evm/imports_test.go
+++ b/plugin/evm/imports_test.go
@@ -15,7 +15,7 @@ import (
 // its recursive package imports (including itself) in the same format.
 func getDependencies(packageName string) (map[string]struct{}, error) {
 	// Configure the load mode to include dependencies
-	cfg := &packages.Config{Mode: packages.NeedDeps | packages.NeedImports | packages.NeedName | packages.NeedModule}
+	cfg := &packages.Config{Mode: packages.NeedImports | packages.NeedName}
 	pkgs, err := packages.Load(cfg, packageName)
 	if err != nil {
 		return nil, fmt.Errorf("failed to load package: %v", err)
@@ -38,7 +38,9 @@ func getDependencies(packageName string) (map[string]struct{}, error) {
 	}
 
 	// Start collecting dependencies
-	collectDeps(pkgs[0])
+	for _, pkg := range pkgs {
+		collectDeps(pkg)
+	}
 	return deps, nil
 }
 
@@ -54,10 +56,12 @@ func TestMustNotImport(t *testing.T) {
 		// Importing these packages configures libevm globally and it is not
 		// possible to do so for both coreth and subnet-evm, where the client may
 		// wish to connect to multiple chains.
-		"plugin/evm/atomic": {"core", "core/vm", "params"},
-		"plugin/evm/client": {"core", "core/vm", "params"},
-		"plugin/evm/config": {"core", "core/vm", "params"},
+		"plugin/evm/atomic": {"core", "plugin/evm/customtypes", "params"},
+		"plugin/evm/client": {"core", "plugin/evm/customtypes", "params"},
+		"plugin/evm/config": {"core", "params", "plugin/evm/customtypes"},
 		"plugin/evm/header": {"core", "core/vm", "params"},
+		"ethclient":         {"plugin/evm/customtypes", "params"},
+		"warp":              {"plugin/evm/customtypes", "params"},
 	}
 
 	for packageName, forbiddenImports := range mustNotImport {