diff --git a/playbooks/roles/bifrost-create-vm-nodes/README.md b/playbooks/roles/bifrost-create-vm-nodes/README.md
index 785ee432b..8a691da1c 100644
--- a/playbooks/roles/bifrost-create-vm-nodes/README.md
+++ b/playbooks/roles/bifrost-create-vm-nodes/README.md
@@ -18,6 +18,12 @@ Role Variables
 
 baremetal_csv_file: "/tmp/baremetal.csv"
 
+test_vm_memory_size: Tunable setting to allow a user to define a specific
+                     amount of RAM to allocate to guest/test VMs.  Defaults
+                     to "3072". Note: if this setting is modified between
+                     test runs, you may need to undefine the test virtual
+                     machine(s) that were previously created.
+
 Dependencies
 ------------
 
diff --git a/playbooks/roles/bifrost-create-vm-nodes/defaults/main.yml b/playbooks/roles/bifrost-create-vm-nodes/defaults/main.yml
index 3a5a37d6a..88891df7f 100644
--- a/playbooks/roles/bifrost-create-vm-nodes/defaults/main.yml
+++ b/playbooks/roles/bifrost-create-vm-nodes/defaults/main.yml
@@ -1,3 +1,4 @@
 ---
 # defaults file for bifrost-create-vm-nodes
 baremetal_csv_file: "/tmp/baremetal.csv"
+test_vm_memory_size: "3072"
diff --git a/playbooks/roles/bifrost-create-vm-nodes/tasks/main.yml b/playbooks/roles/bifrost-create-vm-nodes/tasks/main.yml
index d02db8677..954089152 100644
--- a/playbooks/roles/bifrost-create-vm-nodes/tasks/main.yml
+++ b/playbooks/roles/bifrost-create-vm-nodes/tasks/main.yml
@@ -41,6 +41,7 @@
   script: create_vm_nodes-for-role.sh
   environment:
     NODEOUTPUT: "{{baremetal_csv_file}}"
+    VM_RAM: "{{ test_vm_memory_size }}"
   register: task_create_vm_nodes
   ignore_errors: yes
   delegate_to: localhost
diff --git a/scripts/test-bifrost-build-images.sh b/scripts/test-bifrost-build-images.sh
index 7738d438a..cfbbadbc1 100755
--- a/scripts/test-bifrost-build-images.sh
+++ b/scripts/test-bifrost-build-images.sh
@@ -29,7 +29,8 @@ ansible-playbook -vvvv -i inventory/localhost test-bifrost-create-vm.yaml --synt
 ansible-playbook -vvvv -i inventory/localhost test-bifrost-dynamic.yaml --syntax-check --list-tasks
 
 # Create the test VM
-ansible-playbook -vvvv -i inventory/localhost test-bifrost-create-vm.yaml
+ansible-playbook -vvvv -i inventory/localhost test-bifrost-create-vm.yaml \
+    -e test_vm_memory_size="4096"
 
 set +e