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
4.5 ★★★★★
Based on 11 reviews
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Product Reviews
★★★★★ 5
Bueno
Size: 5 Quarts
Bueno
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 3, 2026
★★★★★ 5
switched from Mobil 1
Size: 5 Quarts
always used Mobil 1, my 2003 accord v6 always burned a little bit of oil, switched to this and it barely burns any at all now.
will continue to use this from now on.
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Reviewed in the United States on April 27, 2026
★★★★★ 4
ITS GOOD OIL
Size: 5 Quarts
OVERALL NOT BAD BUT USING IT TO SEASON A CAST IRON WILL CREATE A BIT TOO DARK OF A SHEEN. WISH THE MANUFACTURER MENTIONED THAT
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Reviewed in the United States on April 8, 2025
★★★★★ 5
buenos
Size: 5 Quarts
Siempre compro de este aceite y es buenisimo me gusta
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Reviewed in the United States on May 5, 2026
★★★★★ 5
An essential work in putting American history in perspective
Format: Hardcover
This is a great book. It is not a book for everyone, however. If you don't know the difference between the Pilgrims and the Puritans, and I don't mean just when they arrived, try something simpler. It is a fascinating read if you already have some knowledge. For example, had I not been familiar with Hudson River geography and history, I'm not sure I would have been able to follow Bailyn's account of New Netherland.
Naturally, as in any history, the most interesting stories are those you haven't heard before. For me, that was the information about New Sweden; I even read that section first. What makes Bailyn's book great, however, is his ability to make one see material one already knows a great deal about in new ways. Although he never addressed this question per se, he helped me answer a question that has been on my mind for at least fifteen years, and on which I've done considerable research - why did the Puritans, who arrived in 1630 as staunch Presbyterians, deriding their Separatist/Congregationalist Pilgrim neighbors, declare themselves Congregationalists in 1648 in the Cambridge Platform? (In part, the answer Bailyn helped me surmise is simply that when two or three Puritans gathered together, they had at least four different theological positions. It was hard enough to reconcile them in a single congregation; a presbytery would have been impossible.) The book also caused me to reassess my whole viewpoint on early Connecticut, and I certainly came to appreciate the importance of John Winthrop, Jr. beyond his role there. It is amazing too that Bailyn covers such a wide range of issues while devoting relatively few pages to each.
The review in The New York Times Book Review, at least as I recall it, was wrong. While that reviewer praised the Virginia, Maryland and New Sweden/New Netherland portions, the New England portion (about 40% of the book) was dismissed as being only of interest to genealogists. While it is true that the earlier sections were more reflective of the book's subtitle, "The Conflict of Civilizations," the New England section would be of interest to a rather small portion of the genealogical community. (For example, I learned nothing new about my only ancestor discussed in the book, William Vassall.) I doubt if that reviewer has ever seen an on-line genealogy, which frequently contain claims such as that so and so was born in 1585 in the United States. As I have already said, the New England section, like the rest of the book, does a marvelous job of putting information in perspective; something that anyone interested in history needs to do.
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Reviewed in the United States on July 10, 2013