diff --git a/ci-operator/config/openshift/multiarch/openshift-multiarch-main__nightly-4.22-upgrade-from-nightly-4.21.yaml b/ci-operator/config/openshift/multiarch/openshift-multiarch-main__nightly-4.22-upgrade-from-nightly-4.21.yaml
index 145f2cdd88476..4ce5a7ea2dc81 100644
--- a/ci-operator/config/openshift/multiarch/openshift-multiarch-main__nightly-4.22-upgrade-from-nightly-4.21.yaml
+++ b/ci-operator/config/openshift/multiarch/openshift-multiarch-main__nightly-4.22-upgrade-from-nightly-4.21.yaml
@@ -101,7 +101,7 @@ tests:
     cluster_profile: openshift-org-gcp
     env:
       ADDITIONAL_WORKER_ARCHITECTURE: aarch64
-      ADDITIONAL_WORKER_VM_TYPE: c4a-standard-4
+      ADDITIONAL_WORKER_VM_TYPE: t2a-standard-4
       COMPUTE_NODE_REPLICAS: "2"
       OCP_ARCH: amd64
       TEST_SUITE: upgrade-conformance
diff --git a/ci-operator/config/openshift/multiarch/openshift-multiarch-main__nightly-4.22-upgrade-from-stable-4.21.yaml b/ci-operator/config/openshift/multiarch/openshift-multiarch-main__nightly-4.22-upgrade-from-stable-4.21.yaml
index 45784bebeb5e6..aa9d10cd9ec03 100644
--- a/ci-operator/config/openshift/multiarch/openshift-multiarch-main__nightly-4.22-upgrade-from-stable-4.21.yaml
+++ b/ci-operator/config/openshift/multiarch/openshift-multiarch-main__nightly-4.22-upgrade-from-stable-4.21.yaml
@@ -108,8 +108,7 @@ tests:
     cluster_profile: openshift-org-gcp
     env:
       ADDITIONAL_WORKER_ARCHITECTURE: aarch64
-      ADDITIONAL_WORKER_DISK_TYPE: hyperdisk-balanced
-      ADDITIONAL_WORKER_VM_TYPE: c4a-standard-4
+      ADDITIONAL_WORKER_VM_TYPE: t2a-standard-4
       COMPUTE_NODE_REPLICAS: "2"
       OCP_ARCH: amd64
       TEST_SUITE: upgrade-conformance
diff --git a/ci-operator/config/openshift/multiarch/openshift-multiarch-main__nightly-4.22.yaml b/ci-operator/config/openshift/multiarch/openshift-multiarch-main__nightly-4.22.yaml
index 9795518d998c4..b1068dffd4497 100644
--- a/ci-operator/config/openshift/multiarch/openshift-multiarch-main__nightly-4.22.yaml
+++ b/ci-operator/config/openshift/multiarch/openshift-multiarch-main__nightly-4.22.yaml
@@ -777,8 +777,8 @@ tests:
   steps:
     cluster_profile: openshift-org-gcp
     env:
-      COMPUTE_NODE_TYPE: c4a-standard-2
-      CONTROL_PLANE_NODE_TYPE: c4a-standard-2
+      COMPUTE_NODE_TYPE: t2a-standard-2
+      CONTROL_PLANE_NODE_TYPE: t2a-standard-2
       OCP_ARCH: arm64
       ZONES_EXCLUSION_PATTERN: (asia-southeast1-a|us-central1-c)
     workflow: openshift-e2e-gcp-ovn
@@ -787,8 +787,8 @@ tests:
   steps:
     cluster_profile: openshift-org-gcp
     env:
-      MIGRATION_CP_MACHINE_TYPE: c4a-standard-2
-      MIGRATION_INFRA_MACHINE_TYPE: c4a-standard-2
+      MIGRATION_CP_MACHINE_TYPE: t2a-standard-2
+      MIGRATION_INFRA_MACHINE_TYPE: t2a-standard-2
       TEST_SKIPS: deploymentconfigs\| should expose cluster services outside the cluster\|
         FIPS TestFIPS\| Multi-stage image builds should succeed\| Optimized image
         builds should succeed\| build can reference a cluster service\| custom build
@@ -812,8 +812,8 @@ tests:
   steps:
     cluster_profile: openshift-org-gcp
     env:
-      COMPUTE_NODE_TYPE: c4a-standard-2
-      CONTROL_PLANE_NODE_TYPE: c4a-standard-2
+      COMPUTE_NODE_TYPE: t2a-standard-2
+      CONTROL_PLANE_NODE_TYPE: t2a-standard-2
       MIGRATION_ARCHITECTURE: x86_64
       MIGRATION_CP_MACHINE_TYPE: n2-standard-4
       MIGRATION_INFRA_MACHINE_TYPE: n2-standard-4
@@ -841,8 +841,8 @@ tests:
   steps:
     cluster_profile: openshift-org-gcp
     env:
-      COMPUTE_NODE_TYPE: c4a-standard-2
-      CONTROL_PLANE_NODE_TYPE: c4a-standard-2
+      COMPUTE_NODE_TYPE: t2a-standard-2
+      CONTROL_PLANE_NODE_TYPE: t2a-standard-2
       OCP_ARCH: arm64
       TEST_TYPE: upgrade-conformance
       ZONES_EXCLUSION_PATTERN: (asia-southeast1-a|us-central1-c)
@@ -853,8 +853,7 @@ tests:
     cluster_profile: openshift-org-gcp
     env:
       ADDITIONAL_WORKER_ARCHITECTURE: aarch64
-      ADDITIONAL_WORKER_DISK_TYPE: hyperdisk-balanced
-      ADDITIONAL_WORKER_VM_TYPE: c4a-standard-2
+      ADDITIONAL_WORKER_VM_TYPE: t2a-standard-2
       COMPUTE_NODE_REPLICAS: "2"
       OCP_ARCH: amd64
       TEST_SKIPS: deploymentconfigs\| should expose cluster services outside the cluster\|
@@ -904,8 +903,7 @@ tests:
     cluster_profile: openshift-org-gcp
     env:
       ADDITIONAL_WORKER_ARCHITECTURE: aarch64
-      ADDITIONAL_WORKER_DISK_TYPE: hyperdisk-balanced
-      ADDITIONAL_WORKER_VM_TYPE: c4a-standard-2
+      ADDITIONAL_WORKER_VM_TYPE: t2a-standard-2
       COMPUTE_NODE_REPLICAS: "2"
       OCP_ARCH: amd64
       TEST_SUITE: upgrade-conformance
diff --git a/ci-operator/config/openshift/multiarch/openshift-multiarch-main__nightly-4.23-upgrade-from-nightly-4.22.yaml b/ci-operator/config/openshift/multiarch/openshift-multiarch-main__nightly-4.23-upgrade-from-nightly-4.22.yaml
index 40c8293ec38d8..a2751865082db 100644
--- a/ci-operator/config/openshift/multiarch/openshift-multiarch-main__nightly-4.23-upgrade-from-nightly-4.22.yaml
+++ b/ci-operator/config/openshift/multiarch/openshift-multiarch-main__nightly-4.23-upgrade-from-nightly-4.22.yaml
@@ -101,8 +101,7 @@ tests:
     cluster_profile: openshift-org-gcp
     env:
       ADDITIONAL_WORKER_ARCHITECTURE: aarch64
-      ADDITIONAL_WORKER_DISK_TYPE: hyperdisk-balanced
-      ADDITIONAL_WORKER_VM_TYPE: c4a-standard-2
+      ADDITIONAL_WORKER_VM_TYPE: t2a-standard-2
       COMPUTE_NODE_REPLICAS: "2"
       OCP_ARCH: amd64
       TEST_SUITE: upgrade-conformance
diff --git a/ci-operator/config/openshift/multiarch/openshift-multiarch-main__nightly-4.23-upgrade-from-stable-4.22.yaml b/ci-operator/config/openshift/multiarch/openshift-multiarch-main__nightly-4.23-upgrade-from-stable-4.22.yaml
index 8d5e645b6477a..5482b52a65218 100644
--- a/ci-operator/config/openshift/multiarch/openshift-multiarch-main__nightly-4.23-upgrade-from-stable-4.22.yaml
+++ b/ci-operator/config/openshift/multiarch/openshift-multiarch-main__nightly-4.23-upgrade-from-stable-4.22.yaml
@@ -108,8 +108,7 @@ tests:
     cluster_profile: openshift-org-gcp
     env:
       ADDITIONAL_WORKER_ARCHITECTURE: aarch64
-      ADDITIONAL_WORKER_DISK_TYPE: hyperdisk-balanced
-      ADDITIONAL_WORKER_VM_TYPE: c4a-standard-2
+      ADDITIONAL_WORKER_VM_TYPE: t2a-standard-2
       COMPUTE_NODE_REPLICAS: "2"
       OCP_ARCH: amd64
       TEST_SUITE: upgrade-conformance
diff --git a/ci-operator/config/openshift/multiarch/openshift-multiarch-main__nightly-4.23.yaml b/ci-operator/config/openshift/multiarch/openshift-multiarch-main__nightly-4.23.yaml
index dc73211e9920f..d9d47f82bb605 100644
--- a/ci-operator/config/openshift/multiarch/openshift-multiarch-main__nightly-4.23.yaml
+++ b/ci-operator/config/openshift/multiarch/openshift-multiarch-main__nightly-4.23.yaml
@@ -746,8 +746,8 @@ tests:
   steps:
     cluster_profile: openshift-org-gcp
     env:
-      COMPUTE_NODE_TYPE: c4a-standard-2
-      CONTROL_PLANE_NODE_TYPE: c4a-standard-2
+      COMPUTE_NODE_TYPE: t2a-standard-2
+      CONTROL_PLANE_NODE_TYPE: t2a-standard-2
       OCP_ARCH: arm64
       ZONES_EXCLUSION_PATTERN: (asia-southeast1-a|us-central1-c)
     workflow: openshift-e2e-gcp-ovn
@@ -756,8 +756,8 @@ tests:
   steps:
     cluster_profile: openshift-org-gcp
     env:
-      MIGRATION_CP_MACHINE_TYPE: c4a-standard-2
-      MIGRATION_INFRA_MACHINE_TYPE: c4a-standard-2
+      MIGRATION_CP_MACHINE_TYPE: t2a-standard-2
+      MIGRATION_INFRA_MACHINE_TYPE: t2a-standard-2
       TEST_SKIPS: deploymentconfigs\| should expose cluster services outside the cluster\|
         FIPS TestFIPS\| Multi-stage image builds should succeed\| Optimized image
         builds should succeed\| build can reference a cluster service\| custom build
@@ -781,8 +781,8 @@ tests:
   steps:
     cluster_profile: openshift-org-gcp
     env:
-      COMPUTE_NODE_TYPE: c4a-standard-2
-      CONTROL_PLANE_NODE_TYPE: c4a-standard-2
+      COMPUTE_NODE_TYPE: t2a-standard-2
+      CONTROL_PLANE_NODE_TYPE: t2a-standard-2
       MIGRATION_ARCHITECTURE: x86_64
       MIGRATION_CP_MACHINE_TYPE: n2-standard-4
       MIGRATION_INFRA_MACHINE_TYPE: n2-standard-4
@@ -810,8 +810,8 @@ tests:
   steps:
     cluster_profile: openshift-org-gcp
     env:
-      COMPUTE_NODE_TYPE: c4a-standard-2
-      CONTROL_PLANE_NODE_TYPE: c4a-standard-2
+      COMPUTE_NODE_TYPE: t2a-standard-2
+      CONTROL_PLANE_NODE_TYPE: t2a-standard-2
       OCP_ARCH: arm64
       TEST_TYPE: upgrade-conformance
       ZONES_EXCLUSION_PATTERN: (asia-southeast1-a|us-central1-c)
@@ -822,8 +822,7 @@ tests:
     cluster_profile: openshift-org-gcp
     env:
       ADDITIONAL_WORKER_ARCHITECTURE: aarch64
-      ADDITIONAL_WORKER_DISK_TYPE: hyperdisk-balanced
-      ADDITIONAL_WORKER_VM_TYPE: c4a-standard-2
+      ADDITIONAL_WORKER_VM_TYPE: t2a-standard-2
       COMPUTE_NODE_REPLICAS: "2"
       OCP_ARCH: amd64
       TEST_SKIPS: deploymentconfigs\| should expose cluster services outside the cluster\|
@@ -873,8 +872,7 @@ tests:
     cluster_profile: openshift-org-gcp
     env:
       ADDITIONAL_WORKER_ARCHITECTURE: aarch64
-      ADDITIONAL_WORKER_DISK_TYPE: hyperdisk-balanced
-      ADDITIONAL_WORKER_VM_TYPE: c4a-standard-2
+      ADDITIONAL_WORKER_VM_TYPE: t2a-standard-2
       COMPUTE_NODE_REPLICAS: "2"
       OCP_ARCH: amd64
       TEST_SUITE: upgrade-conformance