diff --git a/sei-db/config/ss_config.go b/sei-db/config/ss_config.go
index 3fe94e750d..8092a75831 100644
--- a/sei-db/config/ss_config.go
+++ b/sei-db/config/ss_config.go
@@ -4,13 +4,14 @@ package config
 type DBBackend string
 
 const (
-	DefaultSSKeepRecent    = 100000
-	DefaultSSPruneInterval = 600
-	DefaultSSImportWorkers = 1
-	DefaultSSAsyncBuffer   = 100
-	PebbleDBBackend        = "pebbledb"
-	RocksDBBackend         = "rocksdb"
-	DefaultSSBackend       = PebbleDBBackend
+	DefaultSSKeepRecent     = 100000
+	DefaultSSPruneInterval  = 600
+	DefaultSSImportWorkers  = 1
+	DefaultSSAsyncBuffer    = 100
+	PebbleDBBackend         = "pebbledb"
+	RocksDBBackend          = "rocksdb"
+	DefaultSSBackend        = PebbleDBBackend
+	DefaultSSCacheSizeBytes = 32 * 1024 * 1024
 )
 
 // StateStoreConfig defines configuration for the state store (SS) layer.
@@ -76,6 +77,13 @@ type StateStoreConfig struct {
 	// When true, data is routed to separate DBs by EVM key family while
 	// preserving the same logical store key and full key encoding inside each DB.
 	SeparateEVMSubDBs bool `mapstructure:"evm-separate-dbs"`
+
+	// CacheSizeBytes defines the pebbledb block cache size (in bytes) for the
+	// state store backend. Historical reads (e.g. eth debug_trace*, archival
+	// queries) are served from the SS backend rather than memIAVL, so a larger
+	// cache reduces disk-bound random reads. Set <= 0 to use the default.
+	// defaults to 32 MiB
+	CacheSizeBytes int64 `mapstructure:"cache-size-bytes"`
 }
 
 // DefaultStateStoreConfig returns the default StateStoreConfig
@@ -91,5 +99,6 @@ func DefaultStateStoreConfig() StateStoreConfig {
 		UseDefaultComparer:   false,
 		EVMSplit:             false,
 		SeparateEVMSubDBs:    false,
+		CacheSizeBytes:       DefaultSSCacheSizeBytes,
 	}
 }
diff --git a/sei-db/config/toml.go b/sei-db/config/toml.go
index 3d210108e4..b1bcfdc0b1 100644
--- a/sei-db/config/toml.go
+++ b/sei-db/config/toml.go
@@ -140,6 +140,12 @@ evm-ss-split = {{ .StateStore.EVMSplit }}
 # When false, all EVM data stays in one DB using the current unified layout.
 # When true, data is routed to separate DBs while preserving the same evm key prefix format.
 evm-ss-separate-dbs = {{ .StateStore.SeparateEVMSubDBs }}
+
+# CacheSizeBytes defines the pebbledb block cache size (in bytes) for the state store.                                                                                                                                                    
+# Historical reads (e.g. eth debug_trace*, archival queries) are served from the SS                                                                                                                                                       
+# backend rather than memIAVL, so a larger cache reduces disk-bound random reads.                                                                                                                                                         
+# Set <= 0 to use the default. Defaults to 33554432 (32 MiB).                                                                                                                                                                             
+ss-cache-size-bytes = {{ .StateStore.CacheSizeBytes }}
 `
 
 // ReceiptStoreConfigTemplate defines the configuration template for receipt-store
diff --git a/sei-db/db_engine/pebbledb/mvcc/db.go b/sei-db/db_engine/pebbledb/mvcc/db.go
index 95d0ebb1b2..c95005c923 100644
--- a/sei-db/db_engine/pebbledb/mvcc/db.go
+++ b/sei-db/db_engine/pebbledb/mvcc/db.go
@@ -23,7 +23,7 @@ import (
 
 	errorutils "github.com/sei-protocol/sei-chain/sei-db/common/errors"
 	"github.com/sei-protocol/sei-chain/sei-db/common/utils"
-	"github.com/sei-protocol/sei-chain/sei-db/config"
+	seidbconfig "github.com/sei-protocol/sei-chain/sei-db/config"
 	"github.com/sei-protocol/sei-chain/sei-db/db_engine/types"
 	"github.com/sei-protocol/sei-chain/sei-db/proto"
 	"github.com/sei-protocol/sei-chain/sei-db/wal"
@@ -60,7 +60,7 @@ var (
 type Database struct {
 	storage      *pebble.DB
 	asyncWriteWG sync.WaitGroup
-	config       config.StateStoreConfig
+	config       seidbconfig.StateStoreConfig
 	// Earliest version for db after pruning
 	earliestVersion atomic.Int64
 	// Latest version for db
@@ -92,8 +92,12 @@ type VersionedChangesets struct {
 	Done       chan struct{} // non-nil for barrier: closed when this entry is processed
 }
 
-func OpenDB(dataDir string, config config.StateStoreConfig) (types.StateStore, error) {
-	cache := pebble.NewCache(1024 * 1024 * 32)
+func OpenDB(dataDir string, config seidbconfig.StateStoreConfig) (types.StateStore, error) {
+	cacheSizeBytes := config.CacheSizeBytes
+	if cacheSizeBytes <= 0 {
+		cacheSizeBytes = seidbconfig.DefaultSSCacheSizeBytes
+	}
+	cache := pebble.NewCache(cacheSizeBytes)
 	defer cache.Unref()
 
 	// Select comparer based on config. Note: UseDefaultComparer is NOT backwards compatible