diff --git a/beacon_node/builder_client/src/lib.rs b/beacon_node/builder_client/src/lib.rs
index 089e576f504..aebc3f5e2be 100644
--- a/beacon_node/builder_client/src/lib.rs
+++ b/beacon_node/builder_client/src/lib.rs
@@ -1,8 +1,8 @@
 use eth2::types::builder_bid::SignedBuilderBid;
 use eth2::types::payload::FullPayloadContents;
 use eth2::types::{
-    AbstractExecPayload, BlindedPayload, EthSpec, ExecutionBlockHash, ForkVersionedResponse,
-    PublicKeyBytes, SignedBlockContents, SignedValidatorRegistrationData, Slot,
+    BlindedPayload, EthSpec, ExecutionBlockHash, ForkVersionedResponse, PublicKeyBytes,
+    SignedBlockContents, SignedValidatorRegistrationData, Slot,
 };
 pub use eth2::Error;
 use eth2::{ok_or_error, StatusCode};
@@ -163,12 +163,12 @@ impl BuilderHttpClient {
     }
 
     /// `GET /eth/v1/builder/header`
-    pub async fn get_builder_header<E: EthSpec, Payload: AbstractExecPayload<E>>(
+    pub async fn get_builder_header<E: EthSpec>(
         &self,
         slot: Slot,
         parent_hash: ExecutionBlockHash,
         pubkey: &PublicKeyBytes,
-    ) -> Result<Option<ForkVersionedResponse<SignedBuilderBid<E, Payload>>>, Error> {
+    ) -> Result<Option<ForkVersionedResponse<SignedBuilderBid<E>>>, Error> {
         let mut path = self.server.full.clone();
 
         path.path_segments_mut()
diff --git a/beacon_node/execution_layer/src/lib.rs b/beacon_node/execution_layer/src/lib.rs
index ff49583b9da..6709abbae9e 100644
--- a/beacon_node/execution_layer/src/lib.rs
+++ b/beacon_node/execution_layer/src/lib.rs
@@ -89,23 +89,29 @@ pub enum ProvenancedPayload<P> {
     Builder(P),
 }
 
-impl<E: EthSpec, Payload: AbstractExecPayload<E>> TryFrom<BuilderBid<E, Payload>>
+impl<E: EthSpec, Payload: AbstractExecPayload<E>> TryFrom<BuilderBid<E>>
     for ProvenancedPayload<BlockProposalContents<E, Payload>>
 {
     type Error = Error;
 
-    fn try_from(value: BuilderBid<E, Payload>) -> Result<Self, Error> {
+    fn try_from(value: BuilderBid<E>) -> Result<Self, Error> {
         let block_proposal_contents = match value {
             BuilderBid::Merge(builder_bid) => BlockProposalContents::Payload {
-                payload: builder_bid.header.into(),
+                payload: ExecutionPayloadHeader::Merge(builder_bid.header)
+                    .try_into()
+                    .map_err(|_| Error::InvalidPayloadConversion)?,
                 block_value: builder_bid.value,
             },
             BuilderBid::Capella(builder_bid) => BlockProposalContents::Payload {
-                payload: builder_bid.header.into(),
+                payload: ExecutionPayloadHeader::Capella(builder_bid.header)
+                    .try_into()
+                    .map_err(|_| Error::InvalidPayloadConversion)?,
                 block_value: builder_bid.value,
             },
             BuilderBid::Deneb(builder_bid) => BlockProposalContents::PayloadAndBlobs {
-                payload: builder_bid.header.into(),
+                payload: ExecutionPayloadHeader::Deneb(builder_bid.header)
+                    .try_into()
+                    .map_err(|_| Error::InvalidPayloadConversion)?,
                 block_value: builder_bid.value,
                 kzg_commitments: builder_bid.blinded_blobs_bundle.commitments,
                 blobs: BlobItems::try_from_blob_roots(builder_bid.blinded_blobs_bundle.blob_roots)
@@ -138,6 +144,7 @@ pub enum Error {
     InvalidJWTSecret(String),
     InvalidForkForPayload,
     InvalidPayloadBody(String),
+    InvalidPayloadConversion,
     InvalidBlobConversion(String),
     BeaconStateError(BeaconStateError),
 }
@@ -844,7 +851,7 @@ impl<T: EthSpec> ExecutionLayer<T> {
                     let ((relay_result, relay_duration), (local_result, local_duration)) = tokio::join!(
                         timed_future(metrics::GET_BLINDED_PAYLOAD_BUILDER, async {
                             builder
-                                .get_builder_header::<T, Payload>(slot, parent_hash, &pubkey)
+                                .get_builder_header::<T>(slot, parent_hash, &pubkey)
                                 .await
                         }),
                         timed_future(metrics::GET_BLINDED_PAYLOAD_LOCAL, async {
@@ -1991,8 +1998,8 @@ impl fmt::Display for InvalidBuilderPayload {
 }
 
 /// Perform some cursory, non-exhaustive validation of the bid returned from the builder.
-fn verify_builder_bid<T: EthSpec, Payload: AbstractExecPayload<T>>(
-    bid: &ForkVersionedResponse<SignedBuilderBid<T, Payload>>,
+fn verify_builder_bid<T: EthSpec>(
+    bid: &ForkVersionedResponse<SignedBuilderBid<T>>,
     parent_hash: ExecutionBlockHash,
     payload_attributes: &PayloadAttributes,
     block_number: Option<u64>,
@@ -2019,7 +2026,7 @@ fn verify_builder_bid<T: EthSpec, Payload: AbstractExecPayload<T>>(
         .ok()
         .cloned()
         .map(|withdrawals| Withdrawals::<T>::from(withdrawals).tree_hash_root());
-    let payload_withdrawals_root = header.withdrawals_root().ok();
+    let payload_withdrawals_root = header.withdrawals_root().ok().copied();
 
     if *payload_value < profit_threshold {
         Err(Box::new(InvalidBuilderPayload::LowValue {
diff --git a/consensus/types/src/builder_bid.rs b/consensus/types/src/builder_bid.rs
index 8d4927f0bfd..e0c0bb306e8 100644
--- a/consensus/types/src/builder_bid.rs
+++ b/consensus/types/src/builder_bid.rs
@@ -1,7 +1,8 @@
 use crate::beacon_block_body::KzgCommitments;
 use crate::{
-    AbstractExecPayload, BlobRootsList, ChainSpec, EthSpec, ExecPayload, ForkName,
-    ForkVersionDeserialize, KzgProofs, SignedRoot, Uint256,
+    BlobRootsList, ChainSpec, EthSpec, ExecutionPayloadHeaderCapella, ExecutionPayloadHeaderDeneb,
+    ExecutionPayloadHeaderMerge, ExecutionPayloadHeaderRef, ForkName, ForkVersionDeserialize,
+    KzgProofs, SignedRoot, Uint256,
 };
 use bls::PublicKeyBytes;
 use bls::Signature;
@@ -22,26 +23,20 @@ pub struct BlindedBlobsBundle<E: EthSpec> {
     variants(Merge, Capella, Deneb),
     variant_attributes(
         derive(PartialEq, Debug, Serialize, Deserialize, TreeHash, Clone),
-        serde(
-            bound = "E: EthSpec, Payload: AbstractExecPayload<E>",
-            deny_unknown_fields
-        )
-    )
+        serde(bound = "E: EthSpec", deny_unknown_fields)
+    ),
+    map_ref_into(ExecutionPayloadHeaderRef)
 )]
 #[derive(PartialEq, Debug, Serialize, Deserialize, TreeHash, Clone)]
-#[serde(
-    bound = "E: EthSpec, Payload: AbstractExecPayload<E>",
-    deny_unknown_fields,
-    untagged
-)]
+#[serde(bound = "E: EthSpec", deny_unknown_fields, untagged)]
 #[tree_hash(enum_behaviour = "transparent")]
-pub struct BuilderBid<E: EthSpec, Payload: AbstractExecPayload<E>> {
+pub struct BuilderBid<E: EthSpec> {
     #[superstruct(only(Merge), partial_getter(rename = "header_merge"))]
-    pub header: Payload::Merge,
+    pub header: ExecutionPayloadHeaderMerge<E>,
     #[superstruct(only(Capella), partial_getter(rename = "header_capella"))]
-    pub header: Payload::Capella,
+    pub header: ExecutionPayloadHeaderCapella<E>,
     #[superstruct(only(Deneb), partial_getter(rename = "header_deneb"))]
-    pub header: Payload::Deneb,
+    pub header: ExecutionPayloadHeaderDeneb<E>,
     #[superstruct(only(Deneb))]
     pub blinded_blobs_bundle: BlindedBlobsBundle<E>,
     #[serde(with = "serde_utils::quoted_u256")]
@@ -49,35 +44,31 @@ pub struct BuilderBid<E: EthSpec, Payload: AbstractExecPayload<E>> {
     pub pubkey: PublicKeyBytes,
 }
 
-impl<E: EthSpec, Payload: AbstractExecPayload<E>> BuilderBid<E, Payload> {
-    pub fn header(&self) -> Payload::Ref<'_> {
+impl<E: EthSpec> BuilderBid<E> {
+    pub fn header(&self) -> ExecutionPayloadHeaderRef<'_, E> {
         self.to_ref().header()
     }
 }
 
-impl<'a, T: EthSpec, Payload: AbstractExecPayload<T>> BuilderBidRef<'a, T, Payload> {
-    pub fn header(&self) -> Payload::Ref<'a> {
-        match self {
-            Self::Merge(bid) => Payload::Ref::from(&bid.header),
-            Self::Capella(bid) => Payload::Ref::from(&bid.header),
-            Self::Deneb(bid) => Payload::Ref::from(&bid.header),
-        }
+impl<'a, E: EthSpec> BuilderBidRef<'a, E> {
+    pub fn header(&self) -> ExecutionPayloadHeaderRef<'a, E> {
+        map_builder_bid_ref_into_execution_payload_header_ref!(&'a _, self, |bid, cons| cons(
+            &bid.header
+        ))
     }
 }
 
-impl<E: EthSpec, Payload: AbstractExecPayload<E>> SignedRoot for BuilderBid<E, Payload> {}
+impl<E: EthSpec> SignedRoot for BuilderBid<E> {}
 
 /// Validator registration, for use in interacting with servers implementing the builder API.
 #[derive(PartialEq, Debug, Serialize, Deserialize, Clone)]
-#[serde(bound = "E: EthSpec, Payload: ExecPayload<E>")]
-pub struct SignedBuilderBid<E: EthSpec, Payload: AbstractExecPayload<E>> {
-    pub message: BuilderBid<E, Payload>,
+#[serde(bound = "E: EthSpec")]
+pub struct SignedBuilderBid<E: EthSpec> {
+    pub message: BuilderBid<E>,
     pub signature: Signature,
 }
 
-impl<T: EthSpec, Payload: AbstractExecPayload<T>> ForkVersionDeserialize
-    for BuilderBid<T, Payload>
-{
+impl<T: EthSpec> ForkVersionDeserialize for BuilderBid<T> {
     fn deserialize_by_fork<'de, D: Deserializer<'de>>(
         value: serde_json::value::Value,
         fork_name: ForkName,
@@ -99,9 +90,7 @@ impl<T: EthSpec, Payload: AbstractExecPayload<T>> ForkVersionDeserialize
     }
 }
 
-impl<T: EthSpec, Payload: AbstractExecPayload<T>> ForkVersionDeserialize
-    for SignedBuilderBid<T, Payload>
-{
+impl<T: EthSpec> ForkVersionDeserialize for SignedBuilderBid<T> {
     fn deserialize_by_fork<'de, D: Deserializer<'de>>(
         value: serde_json::value::Value,
         fork_name: ForkName,
@@ -120,7 +109,7 @@ impl<T: EthSpec, Payload: AbstractExecPayload<T>> ForkVersionDeserialize
     }
 }
 
-impl<E: EthSpec, Payload: AbstractExecPayload<E>> SignedBuilderBid<E, Payload> {
+impl<E: EthSpec> SignedBuilderBid<E> {
     pub fn verify_signature(&self, spec: &ChainSpec) -> bool {
         self.message
             .pubkey()