GM Performance 604 engine “CT400 IMCA-Sealed 604 Crate Engine, Dyno Tested, Dressed” has been added to your cart. View cart 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