diff --git a/Makefile b/Makefile
index 6c4bcd3..04c3c0a 100644
--- a/Makefile
+++ b/Makefile
@@ -30,7 +30,7 @@ lint:
 
 generate-ssz:
 	rm -f types/builder_encoding.go types/signing_encoding.go types/common_encoding.go
-	sszgen --path types --include ../go-ethereum/common/hexutil --objs Eth1Data,BeaconBlockHeader,SignedBeaconBlockHeader,ProposerSlashing,Checkpoint,AttestationData,IndexedAttestation,AttesterSlashing,Attestation,Deposit,VoluntaryExit,SyncAggregate,ExecutionPayloadHeader,VersionedExecutionPayloadHeader,BlindedBeaconBlockBody,BlindedBeaconBlock,RegisterValidatorRequestMessage,BuilderBid,SignedBuilderBid,SigningData,ForkData,Transactions,BidTraceMessage,BuilderSubmitBlockRequestMessage,BuilderSubmitBlockResponseMessage
+	sszgen --path types --include ../go-ethereum/common/hexutil --objs Eth1Data,BeaconBlockHeader,SignedBeaconBlockHeader,ProposerSlashing,Checkpoint,AttestationData,IndexedAttestation,AttesterSlashing,Attestation,Deposit,VoluntaryExit,SyncAggregate,ExecutionPayloadHeader,VersionedExecutionPayloadHeader,BlindedBeaconBlockBody,BlindedBeaconBlock,SignedBlindedBeaconBlock,RegisterValidatorRequestMessage,BuilderBid,SignedBuilderBid,SigningData,ForkData,Transactions,BidTraceMessage,BuilderSubmitBlockRequestMessage,BuilderSubmitBlockResponseMessage
 
 cover:
 	go test -coverprofile=/tmp/go-sim-lb.cover.tmp ./...
diff --git a/types/builder_encoding.go b/types/builder_encoding.go
index 11829e9..19ae624 100644
--- a/types/builder_encoding.go
+++ b/types/builder_encoding.go
@@ -1,5 +1,5 @@
 // Code generated by fastssz. DO NOT EDIT.
-// Hash: da350027c880b999c04fba4bb596db37092c2806c2dbf24a308a2d6cc0933581
+// Hash: d1fe35ae1ab44365856903184e6aa983590a55d0579fe5f7ddcfc880405068c4
 package types
 
 import (
@@ -2422,6 +2422,109 @@ func (s *SignedBuilderBid) GetTree() (*ssz.Node, error) {
 	return ssz.ProofTree(s)
 }
 
+// MarshalSSZ ssz marshals the SignedBlindedBeaconBlock object
+func (s *SignedBlindedBeaconBlock) MarshalSSZ() ([]byte, error) {
+	return ssz.MarshalSSZ(s)
+}
+
+// MarshalSSZTo ssz marshals the SignedBlindedBeaconBlock object to a target array
+func (s *SignedBlindedBeaconBlock) MarshalSSZTo(buf []byte) (dst []byte, err error) {
+	dst = buf
+	offset := int(100)
+
+	// Offset (0) 'Message'
+	dst = ssz.WriteOffset(dst, offset)
+	if s.Message == nil {
+		s.Message = new(BlindedBeaconBlock)
+	}
+	offset += s.Message.SizeSSZ()
+
+	// Field (1) 'Signature'
+	dst = append(dst, s.Signature[:]...)
+
+	// Field (0) 'Message'
+	if dst, err = s.Message.MarshalSSZTo(dst); err != nil {
+		return
+	}
+
+	return
+}
+
+// UnmarshalSSZ ssz unmarshals the SignedBlindedBeaconBlock object
+func (s *SignedBlindedBeaconBlock) UnmarshalSSZ(buf []byte) error {
+	var err error
+	size := uint64(len(buf))
+	if size < 100 {
+		return ssz.ErrSize
+	}
+
+	tail := buf
+	var o0 uint64
+
+	// Offset (0) 'Message'
+	if o0 = ssz.ReadOffset(buf[0:4]); o0 > size {
+		return ssz.ErrOffset
+	}
+
+	if o0 < 100 {
+		return ssz.ErrInvalidVariableOffset
+	}
+
+	// Field (1) 'Signature'
+	copy(s.Signature[:], buf[4:100])
+
+	// Field (0) 'Message'
+	{
+		buf = tail[o0:]
+		if s.Message == nil {
+			s.Message = new(BlindedBeaconBlock)
+		}
+		if err = s.Message.UnmarshalSSZ(buf); err != nil {
+			return err
+		}
+	}
+	return err
+}
+
+// SizeSSZ returns the ssz encoded size in bytes for the SignedBlindedBeaconBlock object
+func (s *SignedBlindedBeaconBlock) SizeSSZ() (size int) {
+	size = 100
+
+	// Field (0) 'Message'
+	if s.Message == nil {
+		s.Message = new(BlindedBeaconBlock)
+	}
+	size += s.Message.SizeSSZ()
+
+	return
+}
+
+// HashTreeRoot ssz hashes the SignedBlindedBeaconBlock object
+func (s *SignedBlindedBeaconBlock) HashTreeRoot() ([32]byte, error) {
+	return ssz.HashWithDefaultHasher(s)
+}
+
+// HashTreeRootWith ssz hashes the SignedBlindedBeaconBlock object with a hasher
+func (s *SignedBlindedBeaconBlock) HashTreeRootWith(hh ssz.HashWalker) (err error) {
+	indx := hh.Index()
+
+	// Field (0) 'Message'
+	if err = s.Message.HashTreeRootWith(hh); err != nil {
+		return
+	}
+
+	// Field (1) 'Signature'
+	hh.PutBytes(s.Signature[:])
+
+	hh.Merkleize(indx)
+	return
+}
+
+// GetTree ssz hashes the SignedBlindedBeaconBlock object
+func (s *SignedBlindedBeaconBlock) GetTree() (*ssz.Node, error) {
+	return ssz.ProofTree(s)
+}
+
 // MarshalSSZ ssz marshals the Transactions object
 func (t *Transactions) MarshalSSZ() ([]byte, error) {
 	return ssz.MarshalSSZ(t)
diff --git a/types/encoding_bench_test.go b/types/encoding_bench_test.go
new file mode 100644
index 0000000..af173ec
--- /dev/null
+++ b/types/encoding_bench_test.go
@@ -0,0 +1,52 @@
+package types
+
+import (
+	"encoding/json"
+	"os"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func BenchmarkJSONvsSSZEncoding(b *testing.B) {
+	var err error
+	jsonFile, err := os.Open("../testdata/signed-blinded-beacon-block-with-deposit.json")
+	require.NoError(b, err)
+	defer jsonFile.Close()
+	signedBlindedBeaconBlock := new(SignedBlindedBeaconBlock)
+	require.NoError(b, DecodeJSON(jsonFile, &signedBlindedBeaconBlock))
+	signedBlindedBeaconBlockJSONBytes, err := json.Marshal(signedBlindedBeaconBlock)
+	require.NoError(b, err)
+	signedBlindedBeaconBlockSSZBytes, err := signedBlindedBeaconBlock.MarshalSSZ()
+	require.NoError(b, err)
+
+	b.Run("Encode JSON", func(b *testing.B) {
+		for n := 0; n < b.N; n++ {
+			_, err = json.Marshal(signedBlindedBeaconBlock)
+			require.NoError(b, err)
+		}
+	})
+
+	b.Run("Encode SSZ", func(b *testing.B) {
+		for n := 0; n < b.N; n++ {
+			_, err = signedBlindedBeaconBlock.MarshalSSZ()
+			require.NoError(b, err)
+		}
+	})
+
+	b.Run("Decode JSON", func(b *testing.B) {
+		_blindedBeaconBlock := new(SignedBlindedBeaconBlock)
+		for n := 0; n < b.N; n++ {
+			err = json.Unmarshal(signedBlindedBeaconBlockJSONBytes, _blindedBeaconBlock)
+			require.NoError(b, err)
+		}
+	})
+
+	b.Run("Decode SSZ", func(b *testing.B) {
+		_blindedBeaconBlock := new(SignedBlindedBeaconBlock)
+		for n := 0; n < b.N; n++ {
+			err = _blindedBeaconBlock.UnmarshalSSZ(signedBlindedBeaconBlockSSZBytes)
+			require.NoError(b, err)
+		}
+	})
+}