BluePrint Engines GM 400 C.I.D. 508 HP Base Long Block Crate with 6 in. Connecting Rods BP4003CT1 Engines, Rods, 6.6L/400, Assembled, External Balance, Chevrolet, Small Block, Each
BluePrint Engines GM 400 C.I.D. 508 HP Base Long Block Crate with 6 in. Connecting Rods BP4003CT1 Engines, Rods, 6.6L/400, Assembled, External Balance, Chevrolet, Small Block, Each
Description
IMPORTANT NOTICE: Note for Pistons, Rings, Rotors, Rods and engine internalsUnless otherwise specified, some brands supply brake rotors, pistons, rods and rings separately. In some cases, titles may indicate plural, or 'set' - eg the term “ring set” often refers to the rings for a single piston only. If you’re unsure about what’s included with this product, please contact our team for clarification.(keyword: rods)Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.Reference Information Reference Data (Provide these details to our support team) Brand Name/s Blueprint Engines StreetFX SKU mllBP4003CT1 SFX Item ID 5182888 Accounting SKU mll-BP4003CT1 Manufacturer SKU BP4003CT1 Manufacturer UPC 816671020762 Alternative References BP4003CT1, MLL-BP4003CT1
Data: v2 - Desc: v4.2 - Upd: 2026-10-14 03:32:05
Part Type
Crate Engines
Specifications
Crate Engines, GM 400 C.I.D. 508 HP Base Long Block with 6 in. Connecting Rods, 6.6L/400, Assembled, External Balance, Chevrolet, Small Block, Each
Add some real power to your build—BluePrint Engines GM 400 c.i.d. 508 hp base long block crate engines with 6 in. connecting rods. These engine assemblies are built by skilled craftsmen utilizing BluePrint's exclusive designed and manufactured blocks. Their base units come complete with oil pans, valve covers, and front timing covers--letting you finish the engine out, your way, with fuel and ignition systems. They're also balanced, blueprinted, and dyno-tested.
BluePrint Engines GM 400 c.i.d. 508 hp base crate engines include:
• Cast iron block with 4-bolt mains
• Compression ratio: 9.5:1
• Forged crankshaft
• 6 in. forged H-beam connecting rods with 150,000 psi rod bolts
• Forged pistons
• Hydraulic roller cam
• BluePrint aluminum heads with 64cc chamber
• Dyno test results shipped with engine
• 30-month/50,000-mile warranty
| Product Attributes | |
|---|---|
| Brand | BluePrint Engines |
| Manufacturer's Part Number | BP4003CT1 |
| Part Type | Crate Engines |
| Product Line | BluePrint Engines GM 400 C.I.D. 508 HP Base Long Block Crate Engines with 6 in. Connecting Rods |
| UPC | 816671020762 |
| Crate Engine Family | Chevy Small Block |
| Actual Engine Displacement | 6.6L/400 |
| Crate Engine Cylinder Head Material | Aluminum |
| Engine Block Material | Cast iron |
| Assembled | Yes |
| Engine Balance | External |
| Cam Style | Hydraulic roller, OE roller |
| Rear Main Seal Style | 1-piece |
| Intake Manifold Included | No |
| Cylinder Heads Included | Yes |
| Carburetor Included | No |
| Throttle Body Included | No |
| Distributor Included | No |
| Oil Pan Included | Yes |
| Valve Covers Included | Yes |
| Timing Cover Included | Yes |
| Water Pump Included | No |
| Harmonic Balancer Included | No |
| Flexplate Included | No |
| Flywheel Included | No |
| Air Cleaner Included | No |
| Spark Plugs Included | No |
| Spark Plug Wires Included | No |
| Computer Included | No |
| Wiring Harness Included | No |
| Stall Speed Rating RPM Range | 2,400-3,400 |
| Supercharger Included | No |
| Remanufactured | No |
| Quantity | Sold individually. |
Reference Information
| Brand Name/s | Blueprint Engines |
|---|---|
| StreetFX SKU | mllBP4003CT1 |
| SFX Item ID | 5182888 |
| Supplier Item Code | 5182888 |
| Manufacturer SKU | BP4003CT1 |
| Manufacturer UPC | 816671020762 |
| Alternative References | 6.6L/400 |
Compatibility
No specific fitment data available for this part. For clarification, please contact us.
Detailed Compatibility
| Application Data | |
|---|---|
| Make | CHEVROLET |
| Engine Type | V8 |
| Engine Size | 4.3L/262 |
| Engine Family | Chevy small block Gen I |
| Make | CHEVROLET |
| Engine Type | V8 |
| Engine Size | 4.3L/265 |
| Engine Family | Chevy small block Gen I |
| Make | CHEVROLET |
| Engine Type | V8 |
| Engine Size | 4.4L/267 |
| Engine Family | Chevy small block Gen I |
This may not be an exhaustive list of compatible vehicles. Please reach out to one of our representatives if you are unsure or do not see your vehicle here.
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