Check out our new consumer rebate on the BP350CT (341 horsepower) family! Learn More
SKU: BP49613CTC
High Torque GM Big Block Compatible 496 c.i. Engine - 451 Horsepower - Base Dressed - Carbureted
$12,499.00
496 c.i. 451 Horsepower Base Dress

Horsepower & Torque: 451 Horsepower / 523 ft. lbs. Torque

Cylinder Heads: BluePrint Engines Aluminum Cylinder Heads

Compression Ratio: 8.7:1

Camshaft: Hydraulic Roller Cam - .480 Intake / .483 Exhaust Lift and 204 Intake / 209 Exhaust Duration @.050-115.5° LSA

Pistons: Forged - Flat - 3cc

Crankshaft: Forged Crank - 4.250" Stroke and Forged 6.385" Rods

Fuel Recommendation: 87+ Octane

Secure Payments
Financing available at checkout with Affirm
Give your truck the big-block torque it deserves. With 451 horsepower and 523 lb-ft of torque, the BluePrint Engines BP49613CTC is built to deliver hard-hitting low-end performance and strong throttle response right where truck owners want it. The high-torque hydraulic roller cam helps put that power to work down low, while the 8.7:1 compression ratio keeps things practical with the ability to run on 87-octane fuel. A forged rotating assembly and aluminum cylinder heads provide the strength and durability to back it all up, giving you a powerful, street-friendly big block that’s ready to work, cruise, and enjoy.

Description:

  • Horsepower & Torque: 451 Horsepower / 523 ft. lbs. Torque
  • Compression Ratio: 8.7:1
  • BluePrint Engines Aluminum Heads
  • BluePrint Engines Hydraulic Roller Cam
  • BluePrint Engines Forged Crank
  • BluePrint Engines Forged Pistons

Block:

  • BluePrint Engines High Strength Cast Iron Block
  • Manufactured and Machined in the USA!
  • Mech Fuel Pump Provision: Yes
  • 1-Piece Rear Main Seal
  • Standard Deck
  • 4-Bolt Main
  • 4.310" Bore

Rotating Assembly:

  • BluePrint Forged Steel Crankshaft
  • 4.250" Stroke
  • H-Beam 6.385" Connecting Rods w/ 150,000 PSI Bolts
  • Forged Pistons - Flat - 3cc
  • Internally Balanced

Cylinder Heads:

  • BluePrint Aluminum Cylinder Heads - PS8013
  • 119cc Chamber
  • 2.30" Intake / 1.88" Exhaust Valves
  • 315cc Intake Runners
  • Must Verify Header / Exhaust Clearance

Cam Specs:

  • Hydraulic Roller
  • .480 Intake / .483 Exhaust Lift
  • 204 Intake / 209 Exhaust Duration
  • @ .050-115.5 Degree Lobe Separation

Ignition Timing:

  • 10-16° Initial and Total Timing 32-34°

Also Includes:

  • Weiand Stealth Dual Plane Intake Manifold
  • Holley 750cfm Carburetor
  • Distributor - BPP350RBK
  • Harmonic Balancer
  • Timing Cover
  • Oil Pump
  • Dipstick
  • Oil Pan

Notes:

  • BPE recommends electric fans that produce 3000 cfm or more, for engines that are 400cid or less. Engines that are over 400cid BPE recommends 4000cfm or more.
  • The initial advance should be set at 13-16 degree BTDC. The total advance should be NO MORE than 34 degrees BTDC and should be reached by about 4000 RPM. Failure to follow these guidelines can cause detonation damage and will void the warranty.
  • Your engine requires pre-lubing before startup. Your engine has been dyno tested, but it does require additional preventative maintenance before initial startup. Fill oil filter and oil pan to recommended capacity.Remove spark plugs and proceed to crank engine over with starter until oil pressure is visible on manual gauge.Reinstall spark plugs and proceed with initial startup. It is critical that you read and follow the installation instructions in the installation guide.
  • Not for use in pollution-controlled vehicles.
  • BluePrint Engines recommends using a distributor with melonized iron or steel gear ONLY on this engine. Do not use bronze, or unmelonized cast iron distributor gears. Using the wrong distributor gear can cause severe damage to the engine, and void warranty. If you are uncertain of your gear compatibility, contact your distributor manufacturer.

Prop 65 Warning

RELATED PRODUCTS

Bragging Rights Included.

EVERY BLUEPRINT ENGINE ACES THE DYNO TEST

We make sure we hit our target horsepower and proper torque with every crate engine. We use an advanced computerized balancer in our in-house dyno testing rooms to get our rotating assemblies within two grams, ensuring silky smooth power over the entire RPM range. That’s precisely why our engines sound and run better than our competitors.

All specs, zero speculation: A comprehensive, dyno-generated printout showing your critical engine specs will accompany your delivered engine — every time. No more guessing or wondering what your installed engine’s real-world peak horsepower and torque ratings actually are. Any doubters in the crowd? Simply flash ‘em your exact engine’s dyno results.

We're Here to Help!

Our team of experts is standing by ready to help you.

Contact Us
Contact Us
Contact Us