This BluePrint Engines 408 cubic inch Chrysler small block (Magnum) crate engine is a deluxe dressed, carbureted build rated at 465 horsepower and 494 lb-ft of torque. The Holley 750 CFM Classic carburetor, Edelbrock intake, distributor, water pump, and other top-end components come installed on a Magnum block with forged rods and pistons, a roller cam, and aluminum Magnum-pattern heads.
Specifications:
- Displacement: 408 c.i. (6.7L)
- Horsepower: 465 HP
- Torque: 494 lb-ft
- Bore: 4.040 in
- Stroke: 4.000 in
- Compression ratio: 10:1
- Block: Hand-picked seasoned Magnum block, square and parallel decked, align honed main bearing bore, cylinders honed to within .0002 straightness and roundness and sonic tested for thickness, 2-bolt main, 2-piece rear main seal, mechanical fuel pump provision
- Crankshaft: Cast, 4.000 in stroke
- Connecting rods: Forged Magnum, 6.123 in, with 150,000 PSI bolts
- Pistons: Forged
- Cylinder heads: BluePrint assembled and machined Edelbrock 61769 casting aluminum Magnum-pattern heads, 58cc chamber, aluminum roller rockers, 2.02 in intake / 1.60 in exhaust valves, 176cc intake / 75cc exhaust runners
- Camshaft: Roller, .544 in intake / .541 in exhaust lift, 236/242 duration at .050, 110 deg LSA
- Induction: Carbureted: Holley 750 CFM Classic (BPP080508S)
- Balance: Externally balanced front and rear
- Ignition timing: 34 degrees total at 4000 RPM
- Fuel: 91+ octane
- Part number: BPC4085CTCD
What's Included: This is a deluxe dressed, carbureted engine. It comes with: Holley 750cfm Classic Carburetor (BPP080508S); Edelbrock Performance Intake Manifold (BPP7577); Pro-Series Ready Run Distributor (BPP3603BK); Thermostat and Thermostat Housing; Mopar Harmonic Balancer (BPP360); BluePrint Dipstick (BPP9224); Passenger Side Water Pump; 14 in BluePrint Air Cleaner; Spark Plugs and Wires; Tall Valve Covers; Oil Pan and Pump; Timing Cover.
Engine Platform: Built to the Chrysler small block (Magnum) platform.
Prop 65 Warning: This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm. For more information visit www.P65Warnings.ca.gov.
FAQ
What comes on the BPC4085CTCD deluxe dressed engine?
It includes a Holley 750cfm Classic Carburetor (BPP080508S), an Edelbrock Performance Intake Manifold (BPP7577), a Pro-Series Ready Run Distributor (BPP3603BK), a thermostat and thermostat housing, a Mopar harmonic balancer (BPP360), a BluePrint dipstick (BPP9224), a passenger side water pump, a 14 in BluePrint air cleaner, spark plugs and wires, tall valve covers, an oil pan and pump, and a timing cover.
How much power does it make?
It is rated at 465 horsepower and 494 lb-ft of torque with 10:1 compression, and the specified fuel is 91+ octane.
What carburetor is on it?
A Holley 750cfm Classic Carburetor (BPP080508S) on an Edelbrock Performance intake manifold (BPP7577), with a Pro-Series Ready Run Distributor (BPP3603BK) for ignition.
What cooling fan airflow does BluePrint recommend?
BluePrint recommends electric fans rated at 3000 cfm or more for engines of 400 cubic inches or less and 4000 cfm or more for engines over 400 cubic inches, which applies to this 408.
Which pilot bearing is recommended with a manual transmission?
For a manual transmission with a .750 in input shaft, BluePrint lists pilot bearing FC-69907, which has a 1.81 in outside diameter.

