diff --git a/op-chain-ops/genesis/config.go b/op-chain-ops/genesis/config.go
index 71c152c664fa1..9ddd899d14251 100644
--- a/op-chain-ops/genesis/config.go
+++ b/op-chain-ops/genesis/config.go
@@ -208,6 +208,11 @@ func (d *DeployConfig) Check() error {
 	if d.L2GenesisBlockGasLimit == 0 {
 		return fmt.Errorf("%w: L2 genesis block gas limit cannot be 0", ErrInvalidDeployConfig)
 	}
+	// When the initial resource config is made to be configurable by the DeployConfig, ensure
+	// that this check is updated to use the values from the DeployConfig instead of the defaults.
+	if uint64(d.L2GenesisBlockGasLimit) < uint64(defaultResourceConfig.MaxResourceLimit+defaultResourceConfig.SystemTxMaxGas) {
+		return fmt.Errorf("%w: L2 genesis block gas limit is too small", ErrInvalidDeployConfig)
+	}
 	if d.L2GenesisBlockBaseFeePerGas == nil {
 		return fmt.Errorf("%w: L2 genesis block base fee per gas cannot be nil", ErrInvalidDeployConfig)
 	}
diff --git a/op-chain-ops/genesis/genesis.go b/op-chain-ops/genesis/genesis.go
index 3d0249c73953f..a8c24d5acb191 100644
--- a/op-chain-ops/genesis/genesis.go
+++ b/op-chain-ops/genesis/genesis.go
@@ -15,7 +15,8 @@ import (
 	"github.com/ethereum/go-ethereum/params"
 )
 
-const defaultL2GasLimit = 15_000_000
+// defaultL2GasLimit represents the default gas limit for an L2 block.
+const defaultL2GasLimit = 30_000_000
 
 // NewL2Genesis will create a new L2 genesis
 func NewL2Genesis(config *DeployConfig, block *types.Block) (*core.Genesis, error) {
diff --git a/packages/contracts-bedrock/deploy-config/mainnet.json b/packages/contracts-bedrock/deploy-config/mainnet.json
index 78c819bcb0427..464bc044dc05b 100644
--- a/packages/contracts-bedrock/deploy-config/mainnet.json
+++ b/packages/contracts-bedrock/deploy-config/mainnet.json
@@ -25,7 +25,7 @@
   "governanceTokenName": "Optimism",
   "governanceTokenSymbol": "OP",
   "governanceTokenOwner": "0x90F79bf6EB2c4f870365E785982E1f101E93b906",
-  "l2GenesisBlockGasLimit": "0x17D7840",
+  "l2GenesisBlockGasLimit": "0x1c9c380",
   "l2GenesisBlockCoinbase": "0x4200000000000000000000000000000000000011",
   "l2GenesisBlockBaseFeePerGas": "0x3b9aca00",
   "gasPriceOracleOverhead": 2100,
@@ -33,4 +33,4 @@
   "eip1559Denominator": 50,
   "eip1559Elasticity": 10,
   "l2GenesisRegolithTimeOffset": "0x0"
-}
\ No newline at end of file
+}
diff --git a/packages/contracts-bedrock/deploy-config/mainnet.ts b/packages/contracts-bedrock/deploy-config/mainnet.ts
index f276d29ad3a6d..4256556a4d64f 100644
--- a/packages/contracts-bedrock/deploy-config/mainnet.ts
+++ b/packages/contracts-bedrock/deploy-config/mainnet.ts
@@ -37,7 +37,7 @@ const config: DeployConfig = {
   governanceTokenSymbol: 'OP',
   governanceTokenOwner: '0x90F79bf6EB2c4f870365E785982E1f101E93b906',
 
-  l2GenesisBlockGasLimit: '0x17D7840',
+  l2GenesisBlockGasLimit: '0x1c9c380',
   l2GenesisBlockCoinbase: '0x4200000000000000000000000000000000000011',
   l2GenesisBlockBaseFeePerGas: '0x3b9aca00',