diff --git a/crates/ethereum/engine-primitives/src/payload.rs b/crates/ethereum/engine-primitives/src/payload.rs
index 0b39c25b2842..c3b15382f585 100644
--- a/crates/ethereum/engine-primitives/src/payload.rs
+++ b/crates/ethereum/engine-primitives/src/payload.rs
@@ -6,14 +6,12 @@ use alloy_primitives::{Address, B256, U256};
 use alloy_rlp::Encodable;
 use alloy_rpc_types_engine::{
     ExecutionPayloadEnvelopeV2, ExecutionPayloadEnvelopeV3, ExecutionPayloadEnvelopeV4,
-    ExecutionPayloadV1, PayloadAttributes, PayloadId,
+    ExecutionPayloadFieldV2, ExecutionPayloadV1, PayloadAttributes, PayloadId,
 };
 use core::convert::Infallible;
 use reth_payload_primitives::{BuiltPayload, PayloadBuilderAttributes};
 use reth_primitives::{EthPrimitives, SealedBlock};
-use reth_rpc_types_compat::engine::payload::{
-    block_to_payload_v1, block_to_payload_v3, convert_block_to_payload_field_v2,
-};
+use reth_rpc_types_compat::engine::payload::{block_to_payload_v1, block_to_payload_v3};
 
 /// Contains the built payload.
 ///
@@ -131,7 +129,7 @@ impl From<EthBuiltPayload> for ExecutionPayloadEnvelopeV2 {
 
         Self {
             block_value: fees,
-            execution_payload: convert_block_to_payload_field_v2(Arc::unwrap_or_clone(block)),
+            execution_payload: ExecutionPayloadFieldV2::from_block_unchecked(block.hash(), &block),
         }
     }
 }
diff --git a/crates/optimism/payload/src/payload.rs b/crates/optimism/payload/src/payload.rs
index 26269b7e754b..2f1c64d75ed2 100644
--- a/crates/optimism/payload/src/payload.rs
+++ b/crates/optimism/payload/src/payload.rs
@@ -6,7 +6,9 @@ use alloy_eips::{
 };
 use alloy_primitives::{keccak256, Address, Bytes, B256, B64, U256};
 use alloy_rlp::Encodable;
-use alloy_rpc_types_engine::{ExecutionPayloadEnvelopeV2, ExecutionPayloadV1, PayloadId};
+use alloy_rpc_types_engine::{
+    ExecutionPayloadEnvelopeV2, ExecutionPayloadFieldV2, ExecutionPayloadV1, PayloadId,
+};
 use op_alloy_consensus::{encode_holocene_extra_data, EIP1559ParamError};
 /// Re-export for use in downstream arguments.
 pub use op_alloy_rpc_types_engine::OpPayloadAttributes;
@@ -18,9 +20,7 @@ use reth_optimism_primitives::{OpBlock, OpPrimitives, OpTransactionSigned};
 use reth_payload_builder::EthPayloadBuilderAttributes;
 use reth_payload_primitives::{BuiltPayload, PayloadBuilderAttributes};
 use reth_primitives::{transaction::WithEncoded, SealedBlock};
-use reth_rpc_types_compat::engine::payload::{
-    block_to_payload_v1, block_to_payload_v3, convert_block_to_payload_field_v2,
-};
+use reth_rpc_types_compat::engine::payload::{block_to_payload_v1, block_to_payload_v3};
 use std::sync::Arc;
 
 /// Optimism Payload Builder Attributes
@@ -239,7 +239,7 @@ impl From<OpBuiltPayload> for ExecutionPayloadEnvelopeV2 {
 
         Self {
             block_value: fees,
-            execution_payload: convert_block_to_payload_field_v2(Arc::unwrap_or_clone(block)),
+            execution_payload: ExecutionPayloadFieldV2::from_block_unchecked(block.hash(), &block),
         }
     }
 }
diff --git a/crates/rpc/rpc-types-compat/src/engine/payload.rs b/crates/rpc/rpc-types-compat/src/engine/payload.rs
index 82e13f63279d..e84e31f6b184 100644
--- a/crates/rpc/rpc-types-compat/src/engine/payload.rs
+++ b/crates/rpc/rpc-types-compat/src/engine/payload.rs
@@ -4,8 +4,7 @@
 use alloy_eips::{eip2718::Encodable2718, eip4895::Withdrawals};
 use alloy_primitives::U256;
 use alloy_rpc_types_engine::{
-    payload::{ExecutionPayloadBodyV1, ExecutionPayloadFieldV2},
-    ExecutionPayloadV1, ExecutionPayloadV2, ExecutionPayloadV3,
+    payload::ExecutionPayloadBodyV1, ExecutionPayloadV1, ExecutionPayloadV2, ExecutionPayloadV3,
 };
 use reth_primitives::{Block, SealedBlock};
 use reth_primitives_traits::{BlockBody as _, SignedTransaction};
@@ -55,18 +54,6 @@ pub fn block_to_payload_v3<T: SignedTransaction>(
     }
 }
 
-/// Converts [`SealedBlock`] to [`ExecutionPayloadFieldV2`]
-pub fn convert_block_to_payload_field_v2<T: SignedTransaction>(
-    value: SealedBlock<Block<T>>,
-) -> ExecutionPayloadFieldV2 {
-    // if there are withdrawals, return V2
-    if value.body().withdrawals.is_some() {
-        ExecutionPayloadFieldV2::V2(block_to_payload_v2(value))
-    } else {
-        ExecutionPayloadFieldV2::V1(block_to_payload_v1(value))
-    }
-}
-
 /// Converts a [`reth_primitives_traits::Block`] to [`ExecutionPayloadBodyV1`]
 pub fn convert_to_payload_body_v1(
     value: impl reth_primitives_traits::Block,