diff --git a/Distribution/Restock/GameData/ReStock/Assets/Aero/restock-nosecone-1875-2.mu b/Distribution/Restock/GameData/ReStock/Assets/Aero/restock-nosecone-1875-2.mu
new file mode 100644
index 00000000..e1252525
Binary files /dev/null and b/Distribution/Restock/GameData/ReStock/Assets/Aero/restock-nosecone-1875-2.mu differ
diff --git a/Distribution/Restock/GameData/ReStock/PatchesMH/Aero/restock-mh-nosecones.cfg b/Distribution/Restock/GameData/ReStock/PatchesMH/Aero/restock-mh-nosecones.cfg
index 88ec2087..099ed114 100644
--- a/Distribution/Restock/GameData/ReStock/PatchesMH/Aero/restock-mh-nosecones.cfg
+++ b/Distribution/Restock/GameData/ReStock/PatchesMH/Aero/restock-mh-nosecones.cfg
@@ -1,8 +1,8 @@
 // Patches applying art changes to Making History nose cones
 // Contents:
-- Protective Rocket Nosecone Mk5A ()
+- Protective Rocket Nosecone Mk5A (Size_1_5_Cone)
 
-@PART[tdbCone]
+@PART[Size_1_5_Cone]
 {
   @author = Chris Adderley (Nertea)
   !mesh = DELETE
@@ -11,4 +11,53 @@
   {
     model = ReStock/Assets/Aero/restock-nosecone-1875-2
   }
+  !MODULE[ModulePartVariants] {}
+  MODULE
+  {
+    name = ModulePartVariants
+    baseVariant = BlackAndWhite
+    useMultipleDragCubes = false
+    VARIANT
+    {
+      name = White
+      displayName = #autoLOC_8007119
+      themeName = White
+      primaryColor = #ffffff
+      secondaryColor = #ffffff
+      GAMEOBJECTS
+      {
+        1875mNoseconeBlackWhite = false
+        1875mNosecone = true
+        1875mNoseconeOrange = false
+      }
+    }
+    VARIANT
+    {
+      name = BlackAndWhite
+      displayName = #autoLOC_8007122
+      themeName = BlackAndWhite
+      primaryColor = #ffffff
+      secondaryColor = #000000
+      GAMEOBJECTS
+      {
+        1875mNoseconeBlackWhite = true
+        1875mNosecone = false
+        1875mNoseconeOrange = false
+      }
+    }
+    VARIANT
+    {
+      name = GrayAndOrange
+      displayName = #autoLOC_8007121
+      themeName = GrayAndOrange
+      primaryColor = #f49841
+      secondaryColor = #4c4f47
+      GAMEOBJECTS
+      {
+        1875mNoseconeBlackWhite = false
+        1875mNosecone = false
+        1875mNoseconeOrange = true
+      }
+    }
+  }
 }
diff --git a/Distribution/Restock/GameData/ReStock/PatchesMH/Engine/restock-mh-engines-srb-1875.cfg b/Distribution/Restock/GameData/ReStock/PatchesMH/Engine/restock-mh-engines-srb-1875.cfg
index 1b58d2d8..3d08bc39 100644
--- a/Distribution/Restock/GameData/ReStock/PatchesMH/Engine/restock-mh-engines-srb-1875.cfg
+++ b/Distribution/Restock/GameData/ReStock/PatchesMH/Engine/restock-mh-engines-srb-1875.cfg
@@ -1,9 +1,9 @@
 // Patches applying art changes to MH SRB engines
 // Contents:
-// - THK 'Pollux' SRB ()
+// - THK 'Pollux' SRB (Pollux)
 
 // THK 'Pollux' SRB
-@PART[tdbSRB]
+@PART[Pollux]
 {
   @author = Chris Adderley (Nertea)
   !mesh = DELETE
diff --git a/Distribution/Restock/changelog.txt b/Distribution/Restock/changelog.txt
index ef8db2f1..532dd0f6 100644
--- a/Distribution/Restock/changelog.txt
+++ b/Distribution/Restock/changelog.txt
@@ -68,7 +68,7 @@
   - EAS-4 Strut Connector (Andrew)
 - Making History parts replaced:
  - Aero
-  - New MH nosecone (Nertea)
+  - Protective Rocket Nosecone Mk5A (Nertea)
  - Engines
   - RV-1 'Cub' Vernier Engine (Nertea): now has Basic, Wide and Compact variants
   - RK-7 'Kodiak' Liquid Fueled Engine (Nertea): now has 1.875m, 1.875m (boattail), 1.25m, 1.25m (boattail) and Compact variants
diff --git a/Distribution/RestockPlus/GameData/ReStockPlus/Parts/Aero/1875/restock-nosecone-1875-2.cfg b/Distribution/RestockPlus/GameData/ReStockPlus/Parts/Aero/1875/restock-nosecone-1875-2.cfg
index ab617e7b..78b8c785 100644
--- a/Distribution/RestockPlus/GameData/ReStockPlus/Parts/Aero/1875/restock-nosecone-1875-2.cfg
+++ b/Distribution/RestockPlus/GameData/ReStockPlus/Parts/Aero/1875/restock-nosecone-1875-2.cfg
@@ -14,11 +14,13 @@ PART
   rescaleFactor = 1
   // Attachment
   attachRules = 1,1,1,1,0
-  node_stack_bottom = 0.0, -0.94, 0, 0.0, -1.0, 0.0, 1
+  node_stack_bottom = 0.0, -0.5, 0.0, 0.0, -1.0, 0.0, 2
   // Tech
-  TechRequired = aerodynamicSystems
+  TechRequired = advConstruction
   entryCost = 4200
   // Info
+  /// Flag to disable this part if MH is installed
+  MHReplacement = True
   cost = 480
   category = Aero
   subcategory = 0
@@ -34,13 +36,15 @@ PART
   minimum_drag = 0.3
   angularDrag = 2
   crashTolerance = 6
+  thermalMassModifier = 6.0
+  emissiveConstant = 0.7
   maxTemp = 2000
   breakingForce = 350
   breakingTorque = 350
   MODULE
   {
     name = ModulePartVariants
-    baseVariant = White
+    baseVariant = BlackAndWhite
     useMultipleDragCubes = false
     VARIANT
     {
@@ -72,9 +76,9 @@ PART
     }
     VARIANT
     {
-      name = Orange
-      displayName = #autoLOC_8007123
-      themeName = Orange
+      name = GrayAndOrange
+      displayName = #autoLOC_8007121
+      themeName = GrayAndOrange
       primaryColor = #f49841
       secondaryColor = #4c4f47
       GAMEOBJECTS
diff --git a/Distribution/RestockPlus/GameData/ReStockPlus/Parts/Engine/1875/restock-srb-castor.cfg b/Distribution/RestockPlus/GameData/ReStockPlus/Parts/Engine/1875/restock-srb-castor.cfg
index 92d94cf0..f0f9d956 100644
--- a/Distribution/RestockPlus/GameData/ReStockPlus/Parts/Engine/1875/restock-srb-castor.cfg
+++ b/Distribution/RestockPlus/GameData/ReStockPlus/Parts/Engine/1875/restock-srb-castor.cfg
@@ -81,18 +81,20 @@ PART
       }
     }
   }
-  node_stack_bottom = 0.0, -10.699, 0.0, 0.0, -1.0, 0.0, 1
-  node_stack_top = 0.0, 7.574, 0.0, 0.0, 1.0, 0.0, 1
+
+  node_stack_bottom = 0.0, -7.84138, 0.0, 0.0, -1.0, 0.0, 1
+  node_stack_top = 0.0, 7.83746, 0.0, 0.0, 1.0, 0.0, 1
   node_attach = 0.0, 0.0, -0.9375, 0.0, 0.0, 1.0, 1
+
   TechRequired = heavierRocketry
-  entryCost = 0
-  cost = 10500
+  entryCost = 15000
+  cost = 6000
   category = Engine
   subcategory = 0
   title = #LOC_RestockPlus_restock-engine-srb-castor_title
   description = #LOC_RestockPlus_restock-engine-srb-castor_description
   attachRules = 1,1,1,1,0
-  mass = 10
+  mass = 8
   heatConductivity = 0.06 // 1/2 default
   skinInternalConductionMult = 4.0
   emissiveConstant = 0.5 // yes, it's white. But let's claim it's an emissive white...
@@ -113,8 +115,8 @@ PART
     exhaustDamage = True
     ignitionThreshold = 0.1
     minThrust = 0
-    maxThrust = 2250
-    heatProduction = 545
+    maxThrust = 1300
+    heatProduction = 550
     useEngineResponseTime = True
     engineAccelerationSpeed = 10.0
     allowShutdown = False
@@ -132,16 +134,16 @@ PART
     }
     atmosphereCurve
     {
-      key = 0 238
-      key = 1 212
-      key = 4 100
+      key = 0 225
+      key = 1 200
+      key = 7 0.001
     }
   }
   RESOURCE
   {
     name = SolidFuel
-    amount = 7200
-    maxAmount = 7200
+    amount = 5800
+    maxAmount = 5800
   }
   MODULE
   {