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Blueprint Engines

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

SKU: MLLBP49611CT

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

Blueprint Engines

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

SKU: MLLBP49611CT

Crate Engines
A$27,549.88
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.
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Description

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

Part Type

Crate Engines

Data: v4.2 - Upd: 2026-10-14 08:56:24

Specifications

Product Attributes - Brand
BluePrint Engines
Product Attributes - Manufacturer's Part Number
BP49611CT
Product Attributes - Part Type
Crate Engines
Product Attributes - Product Line
BluePrint Engines GM 496 C.I.D. 561 HP Stroker Base Crate Engines with Forged Components
Product Attributes - UPC
00887753744036
Product Attributes - Actual Engine Displacement
8.1L/496
Product Attributes - Crate Engine Cylinder Head Material
Aluminum
Product Attributes - Engine Block Material
Cast iron
Product Attributes - Advertised Compression Ratio
8.8:1
Product Attributes - Assembled
Yes
Product Attributes - Engine Balance
Internal
Product Attributes - Cam Style
Hydraulic roller, OE roller
Product Attributes - Rear Main Seal Style
1-piece
Product Attributes - Intake Manifold Included
No
Product Attributes - Cylinder Heads Included
Yes
Product Attributes - Carburetor Included
No
Product Attributes - Throttle Body Included
No
Product Attributes - Distributor Included
No
Product Attributes - Oil Pan Included
Yes
Product Attributes - Valve Covers Included
Yes
Product Attributes - Timing Cover Included
Yes
Product Attributes - Water Pump Included
No
Product Attributes - Harmonic Balancer Included
No
Product Attributes - Flexplate Included
No
Product Attributes - Flywheel Included
No
Product Attributes - Air Cleaner Included
No
Product Attributes - Spark Plugs Included
No
Product Attributes - Spark Plug Wires Included
No
Product Attributes - Computer Included
No
Product Attributes - Wiring Harness Included
No
Product Attributes - Stall Speed Rating RPM Range
2,000-2,400
Product Attributes - Supercharger Included
No
Product Attributes - Remanufactured
No
Product Attributes - Quantity
Sold individually.
Product Attributes - Notes
This is a standard deck engine with 1-piece rear main seal.
Product Attributes - 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.

Reference Information

Brand Name/s Blueprint Engines
StreetFX SKU mllBP49611CT
SFX Item ID 5183031
Supplier Item Code 5183031
Manufacturer SKU BP49611CT
Manufacturer UPC 887753744036
Alternative References 8.1L/496

Compatibility

Application Data
  • MakeCHEVROLET
    Beginning Year1996
    Ending Year2000
    Engine TypeV8
    Engine Size7.4L/454
    Engine FamilyChevy big block Gen VI
    Cylinder Head TypeStock configuration
    Fuel TypeGAS
    Valves Per Engine16
    Application NotesCylinder 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.

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