Seven litres, 625 horsepower, one crate — the 427 crate engine you bolt in and drive. BluePrint’s Pro Series 427 is the biggest small-block-style LS in the lineup, and the CTFK version is its most complete form: a forged 7.0L stroker with aluminum LS3-pattern heads and a .624″-lift hydraulic roller cam, wearing a fabricated aluminum EFI intake — plus the Holley Terminator X kit (ECU, harness, wideband, handheld) calibrated for this exact engine in the same crate. Your remaining to-do list is short: fuel pump, battery, headers, transmission. Dyno-proven at 625 HP and 565 lb-ft, documented per engine, backed by BluePrint’s 30-month/50,000-mile warranty. Crated and shipped fast across Europe from NH Race Engine.
Why Choose the BluePrint PSLS4272CTFK 427 Crate Engine?
The CTF version of this engine asks one question: “which ECU?” The CTFK deletes the question. Builder-matched electronics are the difference between a project that runs this month and one that chases wiring gremlins until spring — every sensor, connector and calibration in this crate was chosen by the same people who assembled the engine. The Terminator X ships with a base map written for this cam and displacement, and self-learns the rest as you drive.
The hardware underneath is pure Pro Series: a forged steel crank with 4.125″ of stroke, forged 6.125″ I-beam rods, forged Mahle pistons at 11.0:1 with Grafal-coated skirts, and four-valve-cam-driven… [factory LS valvetrain] under CNC-ported-pattern aluminum heads. The 58X reluctor gives the Terminator X a clean modern crank signal — and the kit’s transmission harness runs 4L60E/4L80E swaps with no separate controller. One crate, one calibration, one weekend of wiring.
427 Crate Engine Key Features & Benefits
- 625 HP / 565 TQ — Your Dyno Sheet, Not a Brochure: every engine is run on BluePrint’s dyno and ships with its documented results.
- Terminator X Kit in the Crate: ECU, main harness, wideband O2 sensor and handheld controller — calibrated by BluePrint for this cam and displacement.
- Forged 7.0L Stroker: 4.125″ stroke, 6.125″ forged rods, forged Mahle 11.0:1 pistons with Grafal-coated skirts.
- .624″-Lift Hydraulic Roller Cam: genuine top-end pull with EFI-friendly vacuum and zero valve-lash maintenance.
- Aluminum LS3-Pattern Heads: modern chamber design with the deepest aftermarket support in the LS world.
- Induction Installed: fabricated aluminum intake, throttle body, injectors and rails — bolted on at the factory.
- 58X Reluctor: modern crank signal; native Terminator X compatibility, no signal adapters.
- Self-Learning After Calibration: adapts to altitude, weather and fuel quality automatically as you drive.
- 11.0:1 on Premium Pump Fuel: European 98–99 RON compatible — no race gas, no additives.
- 30-Month / 50,000-Mile Warranty: supported in Europe by NH Race Engine — no transatlantic claims shipping.
427 Crate Engine Recommended Applications
The PSLS4272CTFK fits any build where completion speed matters as much as power:
- Pro Touring: Chevelles, Camaros, Novas — 625 naturally-aspirated horsepower with weekend-install wiring
- C10 & Square-Body Trucks: 565 lb-ft transforms a hauler; LS weight keeps the nose light
- Restomods: modern drivability, no carburetor nostalgia — and no standalone-EFI research project
- First LS Swap: the most forgiving complete package on the market; if you can run wires and a fuel line, you can finish this
- Street & Strip: naturally-aspirated reliability — no blower heat soak, no belt-driven complexity
You supply: fuel tank and EFI-rated pump (58+ PSI), fuel lines, battery, headers and exhaust, flexplate/flywheel and transmission. Front accessory drive: confirm inclusion on your supplier sheet — some CTFK crates include it, some don’t.
Technical Specifications
| Part Type: | High Performance Crate Engine — Fully Dressed with EFI Kit |
| Product Line: | BluePrint Engines Pro Series LS (427 Turn-Key) |
| MPN: | PSLS4272CTFK |
| Sibling: | PSLS4272CTF — identical engine, ECU/harness not included |
| Power: | 625 HP / 565 lb-ft (dyno-proven with documentation) |
| Displacement: | 427 cu in / 7.0L |
| Block: | LS-pattern (confirm casting at order), 1-piece rear seal |
| Crankshaft: | Forged steel, 4.125″ stroke |
| Connecting Rods: | Forged I-beam, 6.125″ |
| Pistons: | Forged Mahle 11.0:1, Grafal-coated skirts |
| Camshaft: | Hydraulic roller, .624″ lift |
| Cylinder Heads: | Aluminum LS3/L92-pattern |
| Induction: | Fabricated aluminum EFI intake, throttle body, injectors, rails — installed |
| EFI Kit: | Holley Terminator X — ECU, harness, wideband, handheld — included |
| Reluctor: | 58X |
| Ignition: | Coil packs & harness — installed |
| Recommended Fuel: | 91+ octane (Euro 98–99 RON) |
| Warranty: | 30 months / 50,000 miles |
| Assembled: | Yes — sold individually |
What’s Included vs. What You Supply
| Component | Included | You Supply |
|---|---|---|
| 427 LS block, forged rotating assembly | ✅ | — |
| Aluminum LS3 heads & roller valvetrain | ✅ | — |
| Hydraulic roller cam & lifters | ✅ | — |
| Fabricated aluminum intake & throttle body | ✅ | — |
| Fuel injectors & fuel rails | ✅ | — |
| Holley Terminator X ECU, harness, wideband, handheld | ✅ | — |
| Coil packs & ignition harness | ✅ | — |
| Oil pan & front cover | ✅ | — |
| Water pump / front accessory drive | ⚠️ | ⚠️ [confirm on supplier sheet] |
| Fuel tank, EFI pump & lines (58+ PSI) | — | ✅ |
| Battery & charging | — | ✅ |
| Headers & exhaust | — | ✅ |
| Flexplate / flywheel & transmission | — | ✅ |
CTF vs CTFK — Which 427?
| Feature | PSLS4272CTF | PSLS4272CTFK (This Engine) |
|---|---|---|
| Power | 625 HP / 565 TQ | 625 HP / 565 TQ |
| Induction | Fully dressed EFI — installed | Fully dressed EFI — installed |
| ECU & harness | You source (we supply Terminator X as an option) | Holley Terminator X kit included |
| Best for | Builders with preferred electronics | Fastest completion, first-time swappers |
Frequently Asked Questions
What exactly does the K add over the CTF?
One crate instead of two projects: the Holley Terminator X system — ECU, engine harness, wideband oxygen sensor and handheld — calibrated by BluePrint for this cam and displacement. The CTF is the same engine without electronics; choose it only if you already own a controller you prefer.
Is this an LS7?
No — and we say so plainly. This is an LS3-style 427 stroker with LS-pattern heads, not the Corvette Z06’s factory LS7. If you specifically need an LS7, contact us. If you want 7.0 litres of forged, dyno-documented LS power at better value, this is it.
How much wiring is actually left for me?
About a day: battery power and ground, fuel-pump trigger, wideband into your exhaust, handheld mounted. The harness is labeled by sensor and terminates at the ECU — no splicing into a vehicle harness required.
Which transmission bolts up?
Any LS-pattern box: 4L60E/4L80E, T56 Magnum, TR6060. Order the Terminator X transmission-harness variant for automatic control — no separate trans controller needed.
Is the warranty valid in Europe?
Yes — BluePrint’s 30-month/50,000-mile warranty is supported in Europe through NH Race Engine directly. Full terms ship with your crate.
Recommended Companion Products
- EFI fuel systems — tanks, 58+ PSI pumps, lines
- LS swap headers & exhaust
- LS swap mounts, oil pans & conversion parts
- Pro touring cooling packages
- 4L80E / T56 Magnum transmissions
- Break-in oil & assembly lubricant
- PSLS4272CTF — the same engine without the EFI kit
- BluePrint LS3 crate engine — 530 HP with EFI kit
- All crate engines — remanufactured & high performance
Shipping Your 427 Crate Engine Across Europe
NH Race Engine ships BluePrint 427 crate engine packages across Europe from our EU warehouse. Engines ship crated on a pallet via insured freight carrier with full tracking — dyno sheet, Terminator X documentation and warranty paperwork included.
Estimated delivery: Netherlands 3–5 business days | Germany, Belgium, France 5–7 business days | Rest of EU 7–10 business days
Liftgate delivery available on request. Contact us for a freight quote to your address or workshop.
Order Your BluePrint PSLS4272CTFK 427 Crate Engine Today
Every electronic decision made, every horsepower documented. The BluePrint PSLS4272CTFK 427 crate engine delivers 625 dyno-proven horsepower with calibrated EFI in a single crate — the fastest complete-package route to a modern LS in your classic.
Contact our technical team with your vehicle and build goals for a complete package quote, or click “Add to Cart” now to secure yours.
SKU: BPE-PSLS4272CTFK | MPN: PSLS4272CTFK | Brand: BluePrint Engines | Category: High Performance Crate Engines / Pro Series LS
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