The 347 SR ROUSH Crate Engine is a high-performance build rooted in classic engine designs from the 1960s and later, but it delivers substantially more power and torque than original production engines. Because of these modern performance gains, it can operate differently than vintage counterparts, with characteristics shaped by increased output and tighter performance demands. This makes the 347 SR ideal for enthusiasts seeking classic-inspired performance with modern muscle, while understanding it won’t behave like a stock factory engine.
