IMCA Modified 604 Crate Oil Pan

The KEVKO OIL PANS & COMPONENTS IMCA Modified 604 Crate Oil Pan is a rear-sump design purpose-built for small block Chevy engines in IMCA-sanctioned circle track racing. This single-piece seal steel oil pan combines a 7-quart capacity with a 7-inch sump depth, delivering the ground clearance and fluid volume competitive modified drivers require on track. Zinc plating provides corrosion resistance during storage and between seasons.

The rear-sump configuration positions the pickup tube at the pan's trailing end, optimizing oil flow during the constant acceleration and cornering loads of oval track racing. The 7-inch depth balances adequate reservoir volume against the low-profile chassis geometry that modified racers demand for competitive handling. One-piece seal construction eliminates leak points common to multi-piece designs, reducing maintenance downtime and oil loss during competition. Steel construction with zinc plating withstands the vibration and thermal cycling of race engines while resisting rust during off-season storage.

This pan is engineered for circle track competitors running small block Chevy crate engines in IMCA 602 and 604 modified classes. Builders and engine shops frequently specify this pan when assembling race-ready short blocks or refreshing existing powerplants for rule-compliant competition. The IMCA 604 Crate Oil Pan is not street-legal and is designed exclusively for sanctioned track use where modified specifications and specifications management are required by rulebooks.

Proper oil pan selection is critical in circle track racing, where sustained lateral forces and rapid acceleration changes place extreme demands on the engine's lubrication system. A rear-sump design with adequate capacity ensures that the pickup tube remains submerged even under aggressive cornering, preventing starvation and bearing wear. KEVKO's race-focused engineering makes this pan a standard choice among IMCA competitors who prioritize reliability and rule compliance.