Horsepower & Torque: 605 Horsepower / 565 FT. LBS. Torque
Cylinder Heads: BluePrint Engines LS3 Aluminum Cylinder Heads
Compression Ratio: 11:1
Camshaft: Hydraulic Roller Cam - .624 Intake / .624 Exhaust Lift and 239 Intake / 255 Exhaust Duration @ .050 - 114° LSA - Three Bolt Cam
Pistons: Forged
Crankshaft: Steel Crank - 4.125" Stroke and 6.125" Rods
This engine Does NOT come with a Fuel Injection ECU and Wiring Harness.
Fuel Recommendation: 91+ Octane
- Description
- Engine Specs
- Parts & Accessories
- Warranty
Overview:
The LS-compatible platform is the king of street machines—and this BluePrint Engines 427 C.I. Pro Series monster proves why. Unleash raw, LS-powered fury with a street-scorching 605 horsepower and 565 ft-lbs of torque. This beast has BluePrint aluminum heads, a hydraulic roller cam, and hypereutectic pistons, and modular iron crankshaft, all locked into a high-strength LSX-style cast iron block.
Description:
- Horsepower & Torque: 605 Horsepower / 565 FT LBS
- Compression Ratio: 11:1
- BluePrint Engines LS3 Aluminum Heads
- BluePrint Engines Hydraulic Roller Cam
- BluePrint Engines Forged Pistons
- BluePrint Engines Forged Crankshaft
Block:
- BluePrint Engines High Strength Cast Iron (LSX Style) Block
- Increased Deck Thickness and Strength Webbing
- Utilizes OEM LS3 Front and Rear Covers
- Improved Water Jacket Design
- Extended Cylinder Skirt
- 1-piece Rear Main Seal
- Priority Main Oiling
- 4.0685" Bore
- 6-bolt Main
Rotating Assembly:
- Forged Crankshaft
- 4.125" Stroke
- Forged 6.125" Connecting Rods
- Forged Pistons
- Internally Balanced Front and Rear
Cylinder Heads:
- BluePrint Aluminum Cylinder Heads -PS8015
- 69cc Chamber
- 2.165" Intake / 1.590" Exhaust Valves
- 259cc Intake / 102cc Exhaust Runners
Cam Specs:
- Hydraulic Roller
- .624 intake / .624 Exhaust Lift
- 239 Intake / 255 Exhaust Duration
- @.050-114 Degree Lobe Separation
Also Includes:
- This engine does NOT come with a Fuel Injection ECU and Wiring Harness
- Harmonic Balancer
- Valve Covers
- LS Swap Oil Pan
- Timing Cover
Notes:
- This engine requires a non-weighted flex plate/flywheel.
- Recommended Fuel: 91 Octane
- BluePrint Engines recommends a 2200+ RPM stall converter.
- Retro fit oil pan will fit most 1955-1995 GM front engine, RWD, V8 cars
- Not for use in pollution-controlled vehicles or in dry sump applications.
Cylinder Heads
LS3 Aluminum Cylinder Heads
Ignition Timing
N/A
Spark Plug
NA
Firing Order
1,8,7,2,6,5,4,3
Rotating Assembly
Forged Crank - 4.125 in. Stroke and Forged 6.125 in. Rods
Cam Specs
Hydraulic Roller - .624 Intake / .624 Exhaust Lift - 239 Intake / 255 Exhaust Duration -@.050-114 LSA
Stall Converter
2200+ RPM
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.
Parts & Accessories Specs
| Intake Manifold (Not Included) | N/A |
|---|---|
| Spark Plug (Not Included) | NA |
| Harmonic Balancer | Non-Weighted |
| Flexplate/Flywheel (Not Included) | Non Weighted BPP12654640 - BPPLS1611 |
| Fuel Recommendation | 91 Octane |
Header Partners:
- Click Here for our Header Partners and recommendations.
Better Than the Rest.
The satisfaction of our customers is our highest priority at BluePrint Engines. We use quality components to balance your engine's rotating assembly within two grams of spec. We dyno test your crate engine and certify that it's ready to deliver horsepower and torque.
We give your BluePrint engine the industry's best-in-class warranty for 30-months / 50,000 miles — with the extra confidence only BluePrint can provide. Our warranty applies to individual or professional installations and is fully transferable. View detailed overview
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Register NowEVERY 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.