BluePrint Engines brings modern muscle to the forefront with this 830-horsepower LS 427 Builder Series package paired to the rock-solid 4L80E automatic transmission. Designed for drivers who want brutal power with everyday reliability, this setup features Holley’s Terminator X EFI system for dead-on fuel control, crisp throttle response, and easy tuning. The engine is built with premium internals, meticulous machining, and pro-series durability to handle hard launches, high rpm, and anything else you can throw at it. Finished with a clean natural pulley kit for a purposeful, performance-first look, this 427/4L80E combo is the ultimate turnkey LS solution for serious street or strip builds.
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Description
4l80e gear ratios BluePrint Engines Standard Edition Builder Series GM LS 427 C.I. 830 HP Crate Engine and 4L80E Automatic Transmission with Holley Terminator X EFIOverview: BluePrint Engines brings modern muscle to the forefront with this 830 horsepower LS 427 Builder Series package paired to the rock solid 4L80E automatic transmission. Designed for drivers who want brutal power with everyday reliability, this setup features Holleys Terminator X EFI system for dead on fuel control, crisp throttle response, and easy tuning. The engine is built with premium internals, meticulous machining, and pro series
Overview:
Description:
- Horsepower & Torque: 830 Horsepower / 800 ft. lbs. Torque
- Compression Ratio: 9.5:1
- 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
- Increased Deck Thickness and Strength Webbing
- Extended Cylinder Skirt
- Priority Main Oiling
- 6-Bolt Main
- 1-Piece Rear Main Seal
- Improved Water Jacket Design
- Utilizes OEM LS3 Front and Rear Covers
Rotating Assembly:
- New Forged Crankshaft
- 4.125" Stroke
- Forged 6.125" Connecting Rods
- Forged Pistons
- Front and Rear Internally Balanced
Cylinder Heads:
- BluePrint Aluminum Cylinder Heads - PS8015
- 70cc 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
Ignition Timing:
- ECM Supplied with Calibration
Holley Terminator X Max Specific Features and Benefits:
- Real Time Fuel Map Learning Simplifies Tuning by Dynamically Adjusting the Base Fuel Rate
- On Board Bosch LSU 4.9 Wideband Control, Enabling Accurate AFR Readings and Closed Loop Tuning
- Eight High Impedance Injector Drivers, Ideal for Stock LS Injectors and Holley EFI Injectors
- Integrated 1-Bar MAP Sensor for Naturally Aspirated or Nitrous Setups, with Harness Support for External Higher Bar Sensors if needed
- 4 Configurable Inputs (12V, Ground, 5V, Frequency) and 2 Outputs (Ground, PWM) - Ideal for Electric Fans, Boost Control Solenoids, Nitrous Control and more
- Free PC Tuning Software via USB/CAN Interface for Full Laptop Control and Advance Setup
- Integrated 3.5" Touchscreen Handheld with Setup Wizard, Internal Data Logging, and Real Time Gauge Displays
- Terminator X Max ECU will Include a Base Timing Map Pre-Configured for this engine.
Also Includes:
- 2.65 Liter Magnuson TVS 2650 Supercharger
- Upgraded Motor tron S107 Injectors
- Electronic Fuel Injection
- Coil Packs
- Valve Covers
- Oil Pan
- Drive by Wire Throttle Body
- Timing Cover
- Spark Plugs and Wires
- Harmonic Balancer
- Natural Front Accessory Drive
- LT1 Style 150-amp Alternator
- LT1 Style Water Pump
- Type II Power Steering Pump
- Compact Style A/C Compressor
Assembled with Complete HD 4l80e Transmission Package:
Includes the following:
- 4L80E Complete Package
- Electronic Transmission Controller Included
- 3200+ Stall Torque Converter
- Flex Plate
- Starter
4L80E Gear Ratios:
- 1: 2.482
- 2: 1.482
- 3: 1.00
- 4: 0.750
- R: 2.077
Notes:
- This Holley EFI Equipped engine has a fully calibrated ECU by BluePrint Engines. Please DO NOT follow the Holley EFI manual for the calibration of the ECU.
- 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. -
The front accessory drive on this engine fits many vehicles, however it is the customer responsibility to accurately measure and confirm fitment. Note this is a low-profile design, but things such as power steering hoses, alternator wiring, and additional fittings/fabrication may be required on some vehicles.
- BluePrint Engines Recommends Air Intake Kit BPPLS01013 to ensure correct MAF calculations and Dyno calibration are maintained with the provided ECU / tuning.
- Engine/Trans Package Ships assembled
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 2218 reviews
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Product Reviews
★★★★★ 4
Omega survival mode
Format: Kindle
Tatum is an Omega who has been suppressing herself since she had a heartbreaking fallout after her first heat. The boy she loved ghosted her after it was over.
Tatum lost her father when she was just 8 and her mother struggled to survive until Tatum got to be an adult and was unable to keep pushing. So now Tatum is being the parent and she needs a better paying job so she can afford to put her mother in a care facility until she is better.
When she finds a job posting for Haze Instincts she knows they take care of their Omega staff and if she is a dancer or maybe something more she will be able to catch up on bills and get her mom taken care of.
As she is exposed to a few different irresistible Alphas she is forced to remember who she is and face everything she has been running from. Will she be able to accept all of her Omega nature, get her mother the care she needs, form a pack and let go of the past?
This book was sad and sweet too. Tatum has been through so much and she doesn't know how everything fits together. As the pieces fit into the puzzle she has to choose a future even if it is scary.
I love the ladies she works with at the club. Their personalities are so fun. Also, I love a groveling Alpha. Though Mr. Brownies was a fun twist. I love that the story was comprehensive and filled in all of the missing pieces in a way that was engaging and made sense.
That epilogue was so freaking sweet and an absolutely perfect ending.
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Reviewed in the United States on January 24, 2025
★★★★★ 5
Exceptional
Format: Kindle
I was thoroughly intrigued with this book. It took me a couple of days to finish it, but I was running home from work to get back into the Haze pack. I loved this book and I can't wait for the next book from this author.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2025
★★★★★ 3
ending was very rushed
Format: Kindle
Fun premise and start but the initial story buildup took 90% of book so the characters coming together and overcoming villain of story was literally less than 25 pages. Ending felt rushed and way less thought out than the premise. The whole mom part of the story was unnecessary and hard to follow.
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Reviewed in the United States on April 25, 2025
★★★★★ 4
Solid Omegaverse!
Format: Kindle
4.5 strong stars!🌟
Overall great story solid omegaverse. I love how they’re fighting their instincts. Lots of spice, TONS of slick and heated moments.
**Slight spoiler sort of**
I was nervous reading this for pretty much one reason and that was the other “O” listed. I knew it wasn’t another female and I would have been happy/fine if it was but the concern lay in not knowing or being guaranteed the smexual preferences of our three alphas so realistically this gave me anxiety on how the dynamic would work. Anyone who has read omegaverse knows there’s usually one omega in each pack. My fear was the male omega connecting only with the female omega and that dynamic doesn’t wholly work for me. To me, the male omega needs the alphas as well so I was relieved with how this turned out.
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Reviewed in the United States on May 18, 2025
★★★★★ 5
Good plot but definitely slow burn
Format: Kindle
⭐️⭐️⭐️⭐️.5|🌶️🌶️🌶️🌶️ (not a ton of spice scenes for an Omegaverse)
The plot, character development, scene progression, and action throughout the story was done really well. I did wish there was better pacing for the spice. I felt like the big spice was really rushed. During some scenes the story was a little hard to follow. I think some parts could’ve been cut. Overall I would read more from this author! 💖
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Reviewed in the United States on April 11, 2025