diff --git a/beacon_chain/spec/datatypes/constants.nim b/beacon_chain/spec/datatypes/constants.nim
index 6c47d43e10..9cdfc20c22 100644
--- a/beacon_chain/spec/datatypes/constants.nim
+++ b/beacon_chain/spec/datatypes/constants.nim
@@ -7,7 +7,7 @@
 
 {.push raises: [], gcsafe.}
 
-import chronos/timer
+import chronos/timer, ./constants_raw
 
 type
   Slot* = distinct uint64
@@ -24,8 +24,8 @@ const
   NODE_ID_BITS* = 256
 
   # https://github.com/ethereum/consensus-specs/blob/v1.6.0-alpha.0/specs/phase0/p2p-interface.md#configuration
-  EPOCHS_PER_SUBNET_SUBSCRIPTION* = 256'u64
-  SUBNETS_PER_NODE* = 2'u64
+  EPOCHS_PER_SUBNET_SUBSCRIPTION* {.intdefine.}: uint64 = 256'u64  # hoodiUZH
+  SUBNETS_PER_NODE* {.intdefine.}: uint64 = 2'u64  # hoodiUZH
   ATTESTATION_SUBNET_COUNT*: uint64 = 64
   ATTESTATION_SUBNET_EXTRA_BITS* = 0'u64
   ATTESTATION_SUBNET_PREFIX_BITS* = 6'u64 ## \
@@ -67,10 +67,9 @@ const
   REORG_PARENT_WEIGHT_THRESHOLD*: uint64 = 160
 
   # https://github.com/ethereum/consensus-specs/blob/v1.4.0-beta.1/specs/phase0/p2p-interface.md#configuration
-  MAX_REQUEST_BLOCKS* = 1024'u64
-  RESP_TIMEOUT* = 10'u64
+  MAX_REQUEST_BLOCKS* {.intdefine.}: uint64 = 1024'u64  # hoodiUZH
   ATTESTATION_PROPAGATION_SLOT_RANGE*: uint64 = 32
-  MAXIMUM_GOSSIP_CLOCK_DISPARITY* = 500.millis
+  MAXIMUM_GOSSIP_CLOCK_DISPARITY* = MAXIMUM_GOSSIP_CLOCK_DISPARITY.int64.millis
 
   # https://github.com/ethereum/consensus-specs/blob/v1.5.0-beta.2/specs/phase0/p2p-interface.md#configuration
   MAX_PAYLOAD_SIZE* = 10'u64 * 1024 * 1024 # bytes
diff --git a/beacon_chain/spec/datatypes/constants_raw.nim b/beacon_chain/spec/datatypes/constants_raw.nim
new file mode 100644
index 0000000000..89692762d1
--- /dev/null
+++ b/beacon_chain/spec/datatypes/constants_raw.nim
@@ -0,0 +1,11 @@
+# beacon_chain
+# Copyright (c) 2025 Status Research & Development GmbH
+# Licensed and distributed under either of
+#   * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
+#   * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
+# at your option. This file may not be copied, modified, or distributed except according to those terms.
+
+{.push raises: [].}
+
+const
+  MAXIMUM_GOSSIP_CLOCK_DISPARITY* {.intdefine.}: uint64 = 500  # hoodiUZH
diff --git a/beacon_chain/spec/network.nim b/beacon_chain/spec/network.nim
index 7dda9c1b2c..2d84f6ec0f 100644
--- a/beacon_chain/spec/network.nim
+++ b/beacon_chain/spec/network.nim
@@ -26,12 +26,12 @@ const
   topicAggregateAndProofsSuffix = "beacon_aggregate_and_proof/ssz_snappy"
   topicBlsToExecutionChangeSuffix = "bls_to_execution_change/ssz_snappy"
   topicExecutionPayloadBidSuffix = "execution_payload_bid/ssz_snappy"
-  topicExecutionPayloadSuffix = "execution_payload/ssz_snappy" 
+  topicExecutionPayloadSuffix = "execution_payload/ssz_snappy"
   topicPayloadAttestationMessageSuffix = "payload_attestation_message/ssz_snappy"
 
 const
-  # The spec now includes this as a bare uint64 as `RESP_TIMEOUT`
-  RESP_TIMEOUT_DUR* = RESP_TIMEOUT.int64.seconds
+  # https://github.com/ethereum/consensus-specs/pull/4532
+  RESP_TIMEOUT_DUR* = 10.seconds
 
   # https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.9/specs/altair/light-client/p2p-interface.md#configuration
   MAX_REQUEST_LIGHT_CLIENT_UPDATES* = 128
diff --git a/beacon_chain/spec/presets.nim b/beacon_chain/spec/presets.nim
index b56d6eff43..9cd33c5124 100644
--- a/beacon_chain/spec/presets.nim
+++ b/beacon_chain/spec/presets.nim
@@ -743,11 +743,20 @@ elif const_preset == "minimal":
 else:
   {.error: "Only mainnet, gnosis, and minimal presets supported".}
 
-const IsMainnetSupported*: bool =
-  const_preset == "mainnet"
-
-const IsGnosisSupported*: bool =
-  const_preset == "gnosis"
+const
+  AreConstantsDefault: bool =
+    MAX_REQUEST_BLOCKS == 1024 and
+    EPOCHS_PER_SUBNET_SUBSCRIPTION == 256 and
+    MAXIMUM_GOSSIP_CLOCK_DISPARITY.milliseconds.uint64 == 500 and
+    SUBNETS_PER_NODE == 2
+
+  IsMainnetSupported*: bool =
+    const_preset == "mainnet" and
+    AreConstantsDefault
+
+  IsGnosisSupported*: bool =
+    const_preset == "gnosis" and
+    AreConstantsDefault
 
 const SLOTS_PER_SYNC_COMMITTEE_PERIOD* =
   SLOTS_PER_EPOCH * EPOCHS_PER_SYNC_COMMITTEE_PERIOD