Fits 1965-1990 Chevrolet 396-454 Big Block with Round Ports " All The PRO 5R air filter

The PRO 5R air filter uses five layers of progressively finer mesh cotton gauze media to provide maximum airflow for best performance results

This Momentum HD is designed around a massive Pro DRY S performance 360 degree radial flow air filter with 3-layers of progressive synthetic media providing 99

Level 6 produces best-in-class performance

Overall Dimensions - 8

this product is backed by Rough Country's Lifetime Replacement Guarantee

Fits 1965-1990 Chevrolet 396-454 Big Block with Round Ports " All The PRO 5R air filterUpgrade to Mr. Gasket Aluminum Layered Header Gaskets and eliminate blown exhaust gaskets forever. They conform to warped and damaged surfaces to create an airtight, leak proof seal and will not shrink or deteriorate EVER.