GM Performance 604 engine Showing the single result Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low Sale! CT400 IMCA-Sealed 604 Crate Engine, Dyno Tested, Dressed $9,045.00 Original price was: $9,045.00.$8,620.00Current price is: $8,620.00. Add to cart