HyperEVM uses fast small blocks for standard transactions and higher-capacity Big Blocks for more complex execution. Ramses can switch block mode automatically when a transaction exceeds the small-block gas limit.
How Big Blocks Work

HyperEVM's dual-block architecture provides two execution modes:
| Block Type | Production Rate | Gas Limit | Typical Use |
|---|---|---|---|
| Small Blocks | Every 1 second | 3 million gas | Standard swaps, transfers, and contract interactions |
| Big Blocks | Every 1 minute | 30 million gas | Transactions whose estimated gas exceeds the small-block limit |
Big Blocks Auto-Switch

When Big Blocks Auto-Switch is enabled in Ramses settings, Ramses uses the transaction's gas estimate to select the appropriate block mode around eligible HyperEVM transactions.
| Estimated Transaction Gas | Ramses Handling |
|---|---|
| 3 million or less | Uses small blocks |
| More than 3 million | Switches to Big Blocks before execution |
Auto-Switch does not fund the required HyperCore or HyperEVM balances and does not remove wallet confirmations. Review every wallet request before signing.
Requirements
To switch block modes through Ramses, the connected address needs:
- An active HyperCore account — The address must already exist on HyperCore.
- HYPE on HyperCore — Ramses currently recommends at least 0.1 HYPE on Core for the
evmUserModifyaction used by the switch flow. - HYPE on HyperEVM — The transaction itself still requires HYPE for gas.
Fix Big Blocks Errors
If the block-mode switch fails:
- Open Hyperliquid Portfolio.
- Select EVM ↔ Core Transfer.
- Transfer 0.1 HYPE from EVM to Core if the Core balance is insufficient.
- Return to Ramses and enable Big Blocks or Big Blocks Auto-Switch.
The 0.1 HYPE amount is Ramses' current operating recommendation, not a Hyperliquid protocol minimum.