Description:

• HP & Torque: HP 375 / 460 FT LBS
• Compression Ratio: 9.8:1
• Cast Iron Heads
• Flat Tappet Cam
• Steel Crank
• Forged Pistons

Block:

• Hand-picked seasoned block
• Square and parallel decked
• Align honed main bearing bore
• Cylinders honed on computer-controlled machine to within .0002 straightness and roundness
• Cylinders are sonic tested for thickness
• 2-Bolt Main
• 4.000" Bored .040" over
• 2-Piece Rear Main Seal
• Mech fuel pump provision: Yes

Rotating Assembly:

• New steel crankshaft
• 4.000" Stroke
• Forged Magnum 6.123" connecting rods w/ 150,000 psi bolts
• Forged pistons
• External

Cylinder Heads:

• NEW Magnum cast iron heads
• Hardened retainers and springs
• 1.92" swirl polished intake valves
• 1.625" swirl polished exhaust valves
• Hardened push rods

Cam Specs:

• Cam Type: Flat Tappet
• .474 Intake .474 Exhaust
• 233 Intake / 240 Exhaust duration@ .050 - 110-degree lobe separation

Ignition Timing:

• 34 degrees total at 3500 RPM

Also Includes:

• Valve covers, oil pan and timing cover

Notes:

Your BluePrint engine was dyno tested with the parts and specifications listed below. If you prefer to install a different part, your engine may not produce the horsepower recorded on your dyno sheet. 

Part Number: BPC4082CTC

Fuel Delivery Type: Carbureted, 750cfm, manual choke

Spark Plug: BPP7938 NGK 7938 BKR5E (.750 inch reach, 14mm thread, 5/8 hex, plug)

Spark Plug Gap: .035"

Harmonic Balancer: Magnum Weighted balancer such as BPP360. EXTERNALLY BALANCED '1993-'1997, 7.25" Diameter.

Flexplate/Flywheel: LA 360,  (Pre-Magnum)

Stall Converter: 2200 - 2600 rpm

Intake Manifold: Dual plane, satin aluminum

Fuel Recommendation: 91 Octane

Timing (Initial/Total Advance): Initial timing - 10-16° and Total timing 32-34°

Firing Order: 1,8,4,3,6,5,7,2

Total Oil capacity with production oil pan, and Correct BPP51515 Filter : 5 Quarts