BluePrint Engines GM 496 C.I.D. 561 HP Stroker Base Crate Engines with Forged Components BP49611CT

Name: BluePrint Engines GM 496 C.I.D. 561 HP Stroker Base Crate Engines with Forged Components
Brand: BluePrint Engines
SKU: MLL-BP49611CT
Price: 11699.00 USD
Availability: OutOfStock
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Part Number: MLL-BP49611CT

$11,699.00

BluePrint Engines GM 496 C.I.D. 561 HP Stroker Base Crate Engines with Forged Components

Crate Engines, GM 496 C.I.D. 561 HP Stroker 7.4/454 Base, 8.1L/496 Actual, Assembled, Internal Balance, Gen VI Block, Forged Internals, Chevy, Each
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BluePrint Engines GM 496 C.I.D. 561 HP Stroker Base Crate Engines with Forged Components BP49611CT

MLL-BP49611CT

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Part Number: MLL-BP49611CT

Estimated Ship Date: Dec 29, 2026

$11,699.00

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Estimated Ship Date: Dec 29, 2026 Would you rather pick it up?

Overview

Brand:

BluePrint Engines

Manufacturer's Part Number:

BP49611CT

Part Type:

Crate Engines

Product Line:

BluePrint Engines GM 496 C.I.D. 561 HP Stroker Base Crate Engines with Forged Components

Summit Racing Part Number:

MLL-BP49611CT

UPC:

00887753744036

Actual Engine Displacement:

8.1L/496

Crate Engine Cylinder Head Material:

Aluminum

Engine Block Material:

Cast iron

Advertised Compression Ratio:

8.8:1

Assembled:

Yes

Engine Balance:

Internal

Cam Style:

Hydraulic roller, OE roller

Rear Main Seal Style:

1-piece

Intake Manifold Included:

Cylinder Heads Included:

Yes

Carburetor Included:

Throttle Body Included:

Distributor Included:

Oil Pan Included:

Yes

Valve Covers Included:

Yes

Timing Cover Included:

Yes

Water Pump Included:

Harmonic Balancer Included:

Flexplate Included:

Flywheel Included:

Air Cleaner Included:

Spark Plugs Included:

Spark Plug Wires Included:

Computer Included:

Wiring Harness Included:

Stall Speed Rating RPM Range:

2,000-2,400

Supercharger Included:

Remanufactured:

Quantity:

Sold individually.

Notes:

This is a standard deck engine with 1-piece rear main seal.

Special Attention:

Cylinder heads feature a 0.300 in. raised exhaust port. Not for use with EGR system. Built to accept power adders such as turbochargers, superchargers, or nitrous systems.

BluePrint Engines GM 496 C.I.D. 561 HP Stroker Base Crate Engines with Forged Components

BluePrint Engines GM BB compatible 496 c.i.d. Stroker long block base crate engines with forged components are built to accept power adders like turbochargers, superchargers, NOS, etc. They're built to deliver 561 hp and 512 lbs.-ft. of torque. The engines also include valve covers, an oil pan and timing cover. Compression ratio: 8.8:1

Engine specifications:

--- BLOCK:
* NEW BluePrint cast iron block
* 4-bolt main
* 4.500 in. bore
* One-piece rear main seal
* Mechanical fuel pump provision: Yes
* Standard deck

--- ROTATING ASSEMBLY:
* New BluePrint forged crankshaft
* 4.250 in. stroke
* Forged H-beam 6.135 in. connecting rods
* Forged pistons
* Internal

---CYLINDER HEADS:
* BluePrint aluminum cylinder heads
* 119cc chamber
* 2.30 in. intake / 1.88 in. exhaust valves
* 316cc intake / 124cc exhaust runners
* Cylinder heads feature a .300 in. raised exhaust port vs. an OEM casting
* Must verify header/exhaust clearance

---CAM SPECS:
* Cam type: Hydraulic roller
* .540 Intake .560 exhaust
* 242 intake / 248 exhaust duration
* @ .050 - 114-degree lobe separation

--- IGNITION TIMING:
* 10-16 degrees and total timing 32-34 degrees

---NOTES:
* Replaces BP49610CT
* Built with dual keyway crankshaft for harmonic balancer
* SFI harmonic balancer included on engine
* Not for EGR
* Must verify header/exhaust clearance