Opinions on Blueprint Crate R/B 493/440

Thinking about getting this for my 69 Dart GTS Has a 440 in it now. Motor is 11 years old. Thinking of updating to a more streetable motor. Any experience/opinions? Especially interested in the pros and cons of aluminum vs steel heads, etc. This is a cruiser not a race car. Thanks

PN: BPC4931CTC
Type: big-block (440)
CID: 493
Block: seasoned 440 block, square and parallel decked, align honed main
bearing bore, cylinders sonic tested for thickness and honed to within
.0002-inch straightness and roundness, Brass freeze plugs
Rotating assembly: new forged steel stroker crank, 10:1 forged pistons and rods, Hastings
moly rings, balanced rotating assembly
Cylinder heads: Blueprint 80cc chamber aluminum heads with hardened retainers and
springs, 2.02-/1.60-inch swirl-polished valves
Camshaft: hydraulic flat tappet, .545-/.545-inch lift, 241-/ 247-degrees duration at
.050-inch lift
Valvetrain: hardened push rods
Intake: aluminum dual plane
Induction: 800cfm carb
Ignition: electronic distributor
Oiling: Melling high-volume oil pump
Output: 525 hp and 590 lb-ft
Out-the-door price: $8,529
Warranty: 30-month/50,000-mile