diff --git a/scripts/config.ts b/scripts/config.ts
index e10f5718..18ff66c2 100644
--- a/scripts/config.ts
+++ b/scripts/config.ts
@@ -347,6 +347,8 @@ function writeConfigs(argv: any) {
     l3Config.node["delayed-sequencer"]["use-merge-finality"] = false
     l3Config.node["batch-poster"].enable = true
     l3Config.node["batch-poster"]["redis-url"] = ""
+    l3Config.node["delayed-sequencer"]["MaxCodeSize"] = argv.maxCodeSize
+    l3Config.node["delayed-sequencer"]["MaxInitCodeSize"] = argv.maxInitCodeSize
     fs.writeFileSync(path.join(consts.configpath, "l3node_config.json"), JSON.stringify(l3Config))
 
     let validationNodeConfig = JSON.parse(JSON.stringify({
@@ -397,7 +399,9 @@ function writeL2ChainConfig(argv: any) {
             "DataAvailabilityCommittee": argv.anytrust,
             "InitialArbOSVersion": 32,
             "InitialChainOwner": argv.l2owner,
-            "GenesisBlockNum": 0
+            "GenesisBlockNum": 0,
+            "MaxCodeSize": argv.maxCodeSize,
+            "MaxInitCodeSize": argv.maxInitCodeSize
         }
     }
     const l2ChainConfigJSON = JSON.stringify(l2ChainConfig)
@@ -430,7 +434,9 @@ function writeL3ChainConfig(argv: any) {
             "DataAvailabilityCommittee": false,
             "InitialArbOSVersion": 31,
             "InitialChainOwner": argv.l2owner,
-            "GenesisBlockNum": 0
+            "GenesisBlockNum": 0,
+            "MaxCodeSize": argv.maxCodeSize,
+            "MaxInitCodeSize": argv.maxInitCodeSize
         }
     }
     const l3ChainConfigJSON = JSON.stringify(l3ChainConfig)
@@ -548,6 +554,16 @@ export const writeConfigCommand = {
             describe: "DAS committee member B BLS pub key",
             default: ""
         },
+        maxCodeSize: {
+            number: true,
+            describe: "maximum code size for contracts",
+            default: 24576
+        },
+        maxInitCodeSize: {
+            number: true,
+            describe: "maximum init code size for contract creation",
+            default: 49152
+        },
 
       },
     handler: (argv: any) => {
@@ -580,6 +596,16 @@ export const writeL2ChainConfigCommand = {
             describe: "enable anytrust in chainconfig",
             default: false
         },
+        maxCodeSize: {
+            number: true,
+            describe: "maximum code size for contracts",
+            default: 24576
+        },
+        maxInitCodeSize: {
+            number: true,
+            describe: "maximum init code size for contract creation",
+            default: 49152
+        }
     },
     handler: (argv: any) => {
         writeL2ChainConfig(argv)
@@ -589,6 +615,23 @@ export const writeL2ChainConfigCommand = {
 export const writeL3ChainConfigCommand = {
     command: "write-l3-chain-config",
     describe: "writes l3 chain config file",
+    builder: {
+        anytrust: {
+            boolean: true,
+            describe: "enable anytrust in chainconfig",
+            default: false
+        },
+        maxCodeSize: {
+            number: true,
+            describe: "maximum code size for contracts",
+            default: 24576
+        },
+        maxInitCodeSize: {
+            number: true,
+            describe: "maximum init code size for contract creation",
+            default: 49152
+        }
+    },
     handler: (argv: any) => {
         writeL3ChainConfig(argv)
     }
diff --git a/test-node.bash b/test-node.bash
index 643a82fe..2b805238 100755
--- a/test-node.bash
+++ b/test-node.bash
@@ -60,6 +60,8 @@ devprivkey=b6b15c8cb491557369f3c7d2c287b053eb229daa9c22138887752191c9520659
 l1chainid=1337
 simple=true
 l2anytrust=false
+maxCodeSize=24576
+maxInitCodeSize=49152
 
 # Use the dev versions of nitro/blockscout
 dev_nitro=false
@@ -278,6 +280,16 @@ while [[ $# -gt 0 ]]; do
             simple=false
             shift
             ;;
+        --max-code-size)
+            maxCodeSize="$2"
+            shift
+            shift
+            ;;
+        --max-init-code-size)
+            maxInitCodeSize="$2"
+            shift
+            shift
+            ;;
         *)
             echo Usage: $0 \[OPTIONS..]
             echo        $0 script [SCRIPT-ARGS]
@@ -294,6 +306,8 @@ while [[ $# -gt 0 ]]; do
             echo --l3-fee-token-decimals Number of decimals to use for custom fee token. Only valid if also '--l3-fee-token' is provided
             echo --l3-token-bridge Deploy L2-L3 token bridge. Only valid if also '--l3node' is provided
             echo --l2-anytrust     run the L2 as an AnyTrust chain
+            echo --max-code-size   Maximum size of contract code in bytes \(default: 24576\)
+            echo --max-init-code-size Maximum size of contract initialization code in bytes \(default: 49152\)
             echo --batchposters    batch posters [0-3]
             echo --redundantsequencers redundant sequencers [0-3]
             echo --detach          detach from nodes after running them
@@ -472,10 +486,10 @@ if $force_init; then
 
     if $l2anytrust; then
         echo "== Writing l2 chain config (anytrust enabled)"
-        docker compose run scripts --l2owner $l2ownerAddress  write-l2-chain-config --anytrust
+        docker compose run scripts --l2owner $l2ownerAddress  write-l2-chain-config --anytrust --maxCodeSize $maxCodeSize --maxInitCodeSize $maxInitCodeSize
     else
         echo == Writing l2 chain config
-        docker compose run scripts --l2owner $l2ownerAddress  write-l2-chain-config
+        docker compose run scripts --l2owner $l2ownerAddress  write-l2-chain-config --maxCodeSize $maxCodeSize --maxInitCodeSize $maxInitCodeSize
     fi
 
     sequenceraddress=`docker compose run scripts print-address --account sequencer | tail -n 1 | tr -d '\r\n'`
@@ -583,7 +597,7 @@ if $force_init; then
         echo == Writing l3 chain config
         l3owneraddress=`docker compose run scripts print-address --account l3owner | tail -n 1 | tr -d '\r\n'`
         echo l3owneraddress $l3owneraddress
-        docker compose run scripts --l2owner $l3owneraddress  write-l3-chain-config
+        docker compose run scripts --l2owner $l3owneraddress  write-l3-chain-config --maxCodeSize $maxCodeSize --maxInitCodeSize $maxInitCodeSize
 
         EXTRA_L3_DEPLOY_FLAG=""
         if $l3_custom_fee_token; then