diff --git a/pkg/model/awsmodel/autoscalinggroup.go b/pkg/model/awsmodel/autoscalinggroup.go
index 27a089dca3..8bba986947 100644
--- a/pkg/model/awsmodel/autoscalinggroup.go
+++ b/pkg/model/awsmodel/autoscalinggroup.go
@@ -135,8 +135,12 @@ func (b *AutoscalingGroupModelBuilder) Build(c *fi.ModelBuilderContext) error {
 				if x.Type == "" {
 					x.Type = DefaultVolumeType
 				}
-				if x.Iops == nil && x.Type == ec2.VolumeTypeIo1 {
-					x.Iops = fi.Int64(DefaultVolumeIops)
+				if x.Type == ec2.VolumeTypeIo1 {
+					if x.Iops == nil {
+						x.Iops = fi.Int64(DefaultVolumeIops)
+					}
+				} else {
+					x.Iops = nil
 				}
 				t.BlockDeviceMappings = append(t.BlockDeviceMappings, &awstasks.BlockDeviceMapping{
 					DeviceName:             fi.String(x.Device),
diff --git a/upup/pkg/fi/cloudup/awstasks/block_device_mappings.go b/upup/pkg/fi/cloudup/awstasks/block_device_mappings.go
index ad7b8844ce..8e518781cf 100644
--- a/upup/pkg/fi/cloudup/awstasks/block_device_mappings.go
+++ b/upup/pkg/fi/cloudup/awstasks/block_device_mappings.go
@@ -51,6 +51,7 @@ func BlockDeviceMappingFromEC2(i *ec2.BlockDeviceMapping) (string, *BlockDeviceM
 	if i.Ebs != nil {
 		o.EbsDeleteOnTermination = i.Ebs.DeleteOnTermination
 		o.EbsEncrypted = i.Ebs.Encrypted
+		o.EbsVolumeIops = i.Ebs.Iops
 		o.EbsVolumeSize = i.Ebs.VolumeSize
 		o.EbsVolumeType = i.Ebs.VolumeType
 	}
@@ -64,13 +65,16 @@ func (i *BlockDeviceMapping) ToEC2(deviceName string) *ec2.BlockDeviceMapping {
 		DeviceName:  aws.String(deviceName),
 		VirtualName: i.VirtualName,
 	}
-	if i.EbsDeleteOnTermination != nil || i.EbsVolumeSize != nil || i.EbsVolumeType != nil {
+	if i.EbsDeleteOnTermination != nil || i.EbsVolumeSize != nil || i.EbsVolumeType != nil || i.EbsVolumeIops != nil {
 		o.Ebs = &ec2.EbsBlockDevice{
 			DeleteOnTermination: i.EbsDeleteOnTermination,
 			Encrypted:           i.EbsEncrypted,
 			VolumeSize:          i.EbsVolumeSize,
 			VolumeType:          i.EbsVolumeType,
 		}
+		if fi.StringValue(o.Ebs.VolumeType) == ec2.VolumeTypeIo1 {
+			o.Ebs.Iops = i.EbsVolumeIops
+		}
 	}
 
 	return o
@@ -87,6 +91,10 @@ func BlockDeviceMappingFromAutoscaling(i *autoscaling.BlockDeviceMapping) (strin
 		o.EbsEncrypted = i.Ebs.Encrypted
 		o.EbsVolumeSize = i.Ebs.VolumeSize
 		o.EbsVolumeType = i.Ebs.VolumeType
+
+		if fi.StringValue(o.EbsVolumeType) == ec2.VolumeTypeIo1 {
+			o.EbsVolumeIops = i.Ebs.Iops
+		}
 	}
 
 	return aws.StringValue(i.DeviceName), o
@@ -106,6 +114,9 @@ func (i *BlockDeviceMapping) ToAutoscaling(deviceName string) *autoscaling.Block
 			VolumeType:          i.EbsVolumeType,
 			Iops:                i.EbsVolumeIops,
 		}
+		if fi.StringValue(o.Ebs.VolumeType) == ec2.VolumeTypeIo1 {
+			o.Ebs.Iops = i.EbsVolumeIops
+		}
 	}
 
 	return o