diff --git a/Cargo.lock b/Cargo.lock
index 04c41732..0f2a5cd6 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -171,9 +171,9 @@ dependencies = [
 
 [[package]]
 name = "alloy-eips"
-version = "0.3.1"
+version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "499ee14d296a133d142efd215eb36bf96124829fe91cf8f5d4e5ccdd381eae00"
+checksum = "f923dd5fca5f67a43d81ed3ebad0880bd41f6dd0ada930030353ac356c54cd0f"
 dependencies = [
  "alloy-eip2930",
  "alloy-eip7702",
@@ -464,9 +464,9 @@ dependencies = [
 
 [[package]]
 name = "alloy-rpc-types-beacon"
-version = "0.3.1"
+version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "abbd9b6764423821bd6874477791ca68cfd0e946958d611319b57b006edf0113"
+checksum = "2e7081d2206dca51ce23a06338d78d9b536931cc3f15134fc1c6535eb2b77f18"
 dependencies = [
  "alloy-eips",
  "alloy-primitives 0.8.0",
@@ -480,23 +480,22 @@ dependencies = [
 
 [[package]]
 name = "alloy-rpc-types-engine"
-version = "0.3.1"
+version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d79cadb52e32d40afa04847647eb50a332559d7870e66e46a0c32c33bf1c801d"
+checksum = "1464c4dd646e1bdfde86ae65ce5ba168dbb29180b478011fe87117ae46b1629b"
 dependencies = [
  "alloy-consensus",
  "alloy-eips",
  "alloy-primitives 0.8.0",
  "alloy-rlp",
- "alloy-rpc-types-eth",
  "alloy-serde",
+ "derive_more 1.0.0",
  "ethereum_ssz",
  "ethereum_ssz_derive",
  "jsonrpsee-types 0.24.3",
  "jsonwebtoken",
  "rand 0.8.5",
  "serde",
- "thiserror",
 ]
 
 [[package]]
@@ -4828,7 +4827,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4979f22fdb869068da03c9f7528f8297c6fd2606bc3a4affe42e6a823fdb8da4"
 dependencies = [
  "cfg-if",
- "windows-targets 0.52.6",
+ "windows-targets 0.48.5",
 ]
 
 [[package]]
@@ -5664,7 +5663,7 @@ version = "0.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "681030a937600a36906c185595136d26abfebb4aa9c65701cefcaf8578bb982b"
 dependencies = [
- "proc-macro-crate 3.1.0",
+ "proc-macro-crate 1.1.3",
  "proc-macro2",
  "quote",
  "syn 2.0.72",
diff --git a/Cargo.toml b/Cargo.toml
index cf448b64..c6390ed3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -74,4 +74,4 @@ alloy-rpc-types-engine = { version = "0.3.0", features = [
     "ssz",
 ] }
 alloy-rpc-types-eth = { version = "0.3.0" }
-alloy-signer-local = { version = "0.3.0" }
\ No newline at end of file
+alloy-signer-local = { version = "0.3.0" }
diff --git a/crates/rbuilder/src/building/mod.rs b/crates/rbuilder/src/building/mod.rs
index 491e51f8..43c15123 100644
--- a/crates/rbuilder/src/building/mod.rs
+++ b/crates/rbuilder/src/building/mod.rs
@@ -36,7 +36,8 @@ use reth_basic_payload_builder::{commit_withdrawals, WithdrawalsOutcome};
 use reth_chainspec::{ChainSpec, EthereumHardforks};
 use reth_errors::ProviderError;
 use reth_evm::system_calls::{
-    post_block_withdrawal_requests_contract_call, pre_block_beacon_root_contract_call,
+    post_block_consolidation_requests_contract_call, post_block_withdrawal_requests_contract_call,
+    pre_block_beacon_root_contract_call, pre_block_blockhashes_contract_call,
 };
 use reth_evm_ethereum::{eip6110::parse_deposits_from_receipts, revm_spec, EthEvmConfig};
 use reth_node_api::PayloadBuilderAttributes;
@@ -581,18 +582,30 @@ impl<Tracer: SimulationTracer> PartialBlock<Tracer> {
             .chain_spec
             .is_prague_active_at_timestamp(ctx.attributes.timestamp())
         {
-            let deposit_requests =
-                parse_deposits_from_receipts(&ctx.chain_spec, self.receipts.iter())?;
+            let evm_config = EthEvmConfig::default();
             let mut db = state.new_db_ref();
 
+            let deposit_requests =
+                parse_deposits_from_receipts(&ctx.chain_spec, self.receipts.iter())?;
             let withdrawal_requests = post_block_withdrawal_requests_contract_call(
-                &EthEvmConfig::default(),
+                &evm_config,
+                db.as_mut(),
+                &ctx.initialized_cfg,
+                &ctx.block_env,
+            )?;
+            let consolidation_requests = post_block_consolidation_requests_contract_call(
+                &evm_config,
                 db.as_mut(),
                 &ctx.initialized_cfg,
                 &ctx.block_env,
             )?;
 
-            let requests = [deposit_requests, withdrawal_requests].concat();
+            let requests = [
+                deposit_requests,
+                withdrawal_requests,
+                consolidation_requests,
+            ]
+            .concat();
             let requests_root = calculate_requests_root(&requests);
             (Some(requests.into()), Some(requests_root))
         } else {
@@ -706,15 +719,24 @@ impl<Tracer: SimulationTracer> PartialBlock<Tracer> {
         ctx: &BlockBuildingContext,
         state: &mut BlockState,
     ) -> eyre::Result<()> {
+        let evm_config = EthEvmConfig::default();
         let mut db = state.new_db_ref();
         pre_block_beacon_root_contract_call(
             db.as_mut(),
-            &EthEvmConfig::default(),
+            &evm_config,
             &ctx.chain_spec,
             &ctx.initialized_cfg,
             &ctx.block_env,
             ctx.attributes.parent_beacon_block_root(),
         )?;
+        pre_block_blockhashes_contract_call(
+            db.as_mut(),
+            &evm_config,
+            &ctx.chain_spec,
+            &ctx.initialized_cfg,
+            &ctx.block_env,
+            ctx.attributes.parent,
+        )?;
         db.as_mut().merge_transitions(BundleRetention::Reverts);
         Ok(())
     }
diff --git a/crates/rbuilder/src/mev_boost/mod.rs b/crates/rbuilder/src/mev_boost/mod.rs
index 28a0d149..e968b442 100644
--- a/crates/rbuilder/src/mev_boost/mod.rs
+++ b/crates/rbuilder/src/mev_boost/mod.rs
@@ -6,7 +6,9 @@ pub mod sign_payload;
 use super::utils::u256decimal_serde_helper;
 
 use alloy_primitives::{Address, BlockHash, Bytes, U256};
-use alloy_rpc_types_beacon::relay::{BidTrace, SignedBidSubmissionV2, SignedBidSubmissionV3};
+use alloy_rpc_types_beacon::relay::{
+    BidTrace, SignedBidSubmissionV2, SignedBidSubmissionV3, SignedBidSubmissionV4,
+};
 use flate2::{write::GzEncoder, Compression};
 use primitive_types::H384;
 use reqwest::{
@@ -455,6 +457,7 @@ impl RelayClient {
                 match data {
                     SubmitBlockRequest::Capella(data) => data.0.as_ssz_bytes(),
                     SubmitBlockRequest::Deneb(data) => data.0.as_ssz_bytes(),
+                    SubmitBlockRequest::Electra(data) => data.0.as_ssz_bytes(),
                 },
                 SSZ_CONTENT_TYPE,
             )
@@ -582,6 +585,9 @@ impl RelayClient {
     }
 }
 
+#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
+pub struct ElectraSubmitBlockRequest(SignedBidSubmissionV4);
+
 #[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
 pub struct DenebSubmitBlockRequest(SignedBidSubmissionV3);
 
@@ -599,6 +605,7 @@ pub struct CapellaSubmitBlockRequest(SignedBidSubmissionV2);
 pub enum SubmitBlockRequest {
     Capella(CapellaSubmitBlockRequest),
     Deneb(DenebSubmitBlockRequest),
+    Electra(ElectraSubmitBlockRequest),
 }
 
 impl SubmitBlockRequest {
@@ -606,6 +613,7 @@ impl SubmitBlockRequest {
         match self {
             SubmitBlockRequest::Capella(req) => req.0.message.clone(),
             SubmitBlockRequest::Deneb(req) => req.0.message.clone(),
+            SubmitBlockRequest::Electra(req) => req.0.message.clone(),
         }
     }
 }
diff --git a/crates/rbuilder/src/mev_boost/sign_payload.rs b/crates/rbuilder/src/mev_boost/sign_payload.rs
index 313d7887..acf56dee 100644
--- a/crates/rbuilder/src/mev_boost/sign_payload.rs
+++ b/crates/rbuilder/src/mev_boost/sign_payload.rs
@@ -1,12 +1,15 @@
-use super::{CapellaSubmitBlockRequest, DenebSubmitBlockRequest, SubmitBlockRequest};
+use super::{
+    CapellaSubmitBlockRequest, DenebSubmitBlockRequest, ElectraSubmitBlockRequest,
+    SubmitBlockRequest,
+};
 use crate::utils::u256decimal_serde_helper;
 use alloy_primitives::{Address, BlockHash, FixedBytes, B256, U256};
 use alloy_rpc_types_beacon::{
-    relay::{BidTrace, SignedBidSubmissionV2, SignedBidSubmissionV3},
+    relay::{BidTrace, SignedBidSubmissionV2, SignedBidSubmissionV3, SignedBidSubmissionV4},
     BlsPublicKey,
 };
 use alloy_rpc_types_engine::{
-    BlobsBundleV1, ExecutionPayloadV1, ExecutionPayloadV2, ExecutionPayloadV3,
+    BlobsBundleV1, ExecutionPayloadV1, ExecutionPayloadV2, ExecutionPayloadV3, ExecutionPayloadV4,
 };
 use alloy_rpc_types_eth::Withdrawal;
 use ethereum_consensus::{
@@ -178,12 +181,45 @@ pub fn sign_block_for_relay(
 
         let blobs_bundle = marshal_txs_blobs_sidecars(blobs_bundle);
 
-        SubmitBlockRequest::Deneb(DenebSubmitBlockRequest(SignedBidSubmissionV3 {
-            message,
-            execution_payload,
-            blobs_bundle: blobs_bundle.clone(),
-            signature,
-        }))
+        if chain_spec.is_prague_active_at_timestamp(sealed_block.timestamp) {
+            let mut deposit_requests = Vec::new();
+            let mut withdrawal_requests = Vec::new();
+            let mut consolidation_requests = Vec::new();
+            for request in sealed_block.requests.iter().flat_map(|r| &r.0) {
+                match request {
+                    alloy_consensus::Request::DepositRequest(r) => {
+                        deposit_requests.push(*r);
+                    }
+                    alloy_consensus::Request::WithdrawalRequest(r) => {
+                        withdrawal_requests.push(*r);
+                    }
+                    alloy_consensus::Request::ConsolidationRequest(r) => {
+                        consolidation_requests.push(*r);
+                    }
+                    _ => {}
+                };
+            }
+
+            let execution_payload = ExecutionPayloadV4 {
+                payload_inner: execution_payload,
+                deposit_requests,
+                withdrawal_requests,
+                consolidation_requests,
+            };
+            SubmitBlockRequest::Electra(ElectraSubmitBlockRequest(SignedBidSubmissionV4 {
+                message,
+                execution_payload,
+                blobs_bundle,
+                signature,
+            }))
+        } else {
+            SubmitBlockRequest::Deneb(DenebSubmitBlockRequest(SignedBidSubmissionV3 {
+                message,
+                execution_payload,
+                blobs_bundle,
+                signature,
+            }))
+        }
     } else {
         let execution_payload = capella_payload;
         SubmitBlockRequest::Capella(CapellaSubmitBlockRequest(SignedBidSubmissionV2 {
diff --git a/crates/rbuilder/src/validation_api_client.rs b/crates/rbuilder/src/validation_api_client.rs
index 797fbd40..ce668db3 100644
--- a/crates/rbuilder/src/validation_api_client.rs
+++ b/crates/rbuilder/src/validation_api_client.rs
@@ -77,6 +77,7 @@ impl ValidationAPIClient {
         let method = match req {
             SubmitBlockRequest::Capella(_) => "flashbots_validateBuilderSubmissionV2",
             SubmitBlockRequest::Deneb(_) => "flashbots_validateBuilderSubmissionV3",
+            SubmitBlockRequest::Electra(_) => "flashbots_validateBuilderSubmissionV4",
         };
         let request = ValidRequest {
             req: req.clone(),