GM LT4 Supercharged 6.2L

The GM LT4 Supercharged 6.2 L V‑8 represents pinnacle performance in the Gen V small‑block lineup, originally developed for the Corvette Z06 before becoming the powerhouse in the Camaro ZL1 and Cadillac CTS‑V Rated at 650 horsepower and 650 lb‑ft of torque, it’s the most powerful production engine ever offered by GM in a regular production line-up . Now available as a high‑quality crate engine for performance builds, swaps, and modern restomods.

 Heritage & Applications

This engine powered the 2015–2019 Corvette C7 Z06, 2016–2019 Cadillac CTS‑V, 2017–2024 Camaro ZL1, and more recent GM halo vehicles such as the Cadillac CT5‑V Blackwing and Escalade‑V. Those roots give it legendary automotive pedigree.

Every GM LT4 Supercharged 6.2 crate engine is true OEM GM spec, built on the Gen V platform introduced in the Stingray LT1, sharing architecture such as direct injection, cylinder deactivation (AFM), and continuously variable valve timing—while significantly enhanced for forced‑induction pressure and reliability under high boost.

3. Performance Specs & Mechanical Design

A detailed breakdown:

• Displacement: 6.2 L (376 CID)

• Supercharger: 1.7 L Eaton R1740 TVS, spinning up to 20,000 rpm, generating over 9 psi of boost

• Output: 650 hp @ 6,400 rpm; 650 lb‑ft @ 3,600 rpm (max RPM ~6,600) Compression Ratio: 10.0 : 1

• Block & Heads: Cast aluminum block with 6‑bolt cross‑bolted main caps; Rotocast A356‑T6 aluminum heads with 65.5cc chambers

• Internals: Forged steel crankshaft, forged powdered‑metal steel connecting rods, forged aluminum pistons, lightweight titanium intake valves

• Valvetrain: Hydraulic roller‑tappet cam; valve lift 0.492″ intake / 0.551″ exhaust; cam duration 189° intake / 223° exhaust; rocker arm ratio 1.81:1

• Fuel System: Direct injection, variable valve timing, cylinder deactivation (AFM)—though certain crate packages may disable fuel management systems for better control on swaps

• Reluctor Wheel: 58× pattern (crucial for ECU and transmission match)

Assembly is done at GM’s Performance Build Center in Bowling Green, KY or St. Catharines, reflecting factory superb quality control and tuning.

 Crate Engine Versions & Fitment

a) Wet‑Sump Crate Engine (Part #19431955)

• Standard version for most street and mild race builds; uses a Camaro‑style oil pan.

• Approx price: $17,500–$18,000 USD depending on vendor (e.g. Billy’s Speed Shop at £16,495—£19,795 including VAT) .

• Sold individually “in the wrapper” with crate, covers, and original factory high-pressure fuel pump, but without electronics, wiring harness, or fuel pedal kit .

• Final cost delivered typically $17,900 to $19,900 USD—including vendors such as Schwartz, Racecar Engineering, KarlKustoms, and others .

b) Dry‑Sump Crate Engine (Part #19416595)

• Used in high‑end applications like the Corvette Z06; features external dry‑sump oiling system for improved oil control under track duty.

• Priced slightly higher (e.g. £17,912 to £21,495) and availability is more limited due to specialized oil system

c) E‑ROD GM LT4 Supercharged 6.2 (CARB certified)

• Fully emissions‑legal (CARB EO number D‑126‑47) complete wet‑sump E‑ROD kit including ECU, harness, oxygen sensors, catalytic converters, pedal, and control module.

• Price around $18,800–$20,900 USD

• Designed specifically for street legal compatibility in all 50 states, especially useful in younger restomods or rod vehicles.

d) Turnkey Swap Kit from Donor (e.g. Mars Auto Parts)

• Includes used GM LT4 Supercharged 6.2 from CTS‑V or ZL1 with under ~75k miles, plus transmission, harness, fuel pump, radiator, fans, pallet setup. Price typically around $19,999 with 6‑month lead time

 Pricing & Vendor Options

Public vendors offer very similar pricing:

• Schwartz Performance lists the new wet‑sump unit at $17,499.99 USD backorder only .

• Billy’s Speed Shop (UK) lists at £16,495 ex‑VAT (≈ $20k USD)

• Racecar Engineering offers at $17,919 USD with shipping restrictions

• KarlKustoms OEM GM LT4 Supercharged 6.2 units around $19,745 USD after discount from MSRP ~$23,500

• Pace Performance E‑ROD models priced at $18,879 USD with full emissions kit

 Why Choose an GM LT4 Supercharged 6.2 Crate Engine?

a) OEM Performance & Reliability

Built by GM for factory applications, not aftermarket clones—ensures high durability and long life under stress.

b) Proven Power Envelope

Solid 650 hp / 650 lb-ft ratings ensure strong acceleration and tractable street manners—even in heavy vehicles like the CTS‑V or Escalade‑V.

c) Advanced Technology

Direct injection, VVT, AFM, and high-efficiency supercharging provide modern refinement and fuel economy when cruising.

d) Complete Package Availability

E‑ROD and full swap-kits make installations in classic cars or custom builds either emissions legal or turnkey ready.

e) Resale & Rarity

LT4 crate engines are limited and increasingly rare, making them high-demand items among enthusiasts and performance restorers

 Installation Considerations & Kit Requirements

• Electronics: Crate engines usually come without ECU, wiring harness, throttle pedal, or fuel system. These must be purchased separately (e.g., P/N 19355174 or 19366789 control kit)

• Transmission Compatibility: Works with a range of automatics (4L80E, 6L80E, 8L90E, 10L90E) or T56/Tremec 6-speed manuals. Each application may require different control kits and mounting adapters

• Oil system: Wet-sump units are simpler to mount in street cars; dry-sump versions require external reservoir and plumbing.

• Fuel requirement: Premium pump gas recommended (typically 91–93 octane).

• Weight & dimensions: Approximately 450‑600 lbs, crate dimensions ~60 × 42 × 40 inches depending on pan type and package Emissions: Dry-sump versions and basic wet-sump crate variants typically not CARB legal. E‑ROD kits are specifically legal in all US states

8. Use‑Cases & Ideal Builds

• Restorations & Restomods: Classic muscle cars (’60s–’70s Camaro, Chevelle, Nova), rods, or street/strip builds benefit from plug‑and‑play power.

• High‑performance swaps: Perfect for engine‑swap conversions where modern supercharged torque is desired.

• Project or track car foundations: Provide a reliable base for further upgrades (cam, tune, exhaust, forced induction mods beyond stock).

• Exotic street‑legal builds using emissions‑ready E‑ROD versions.

9. Summary Table On GM LT4 Supercharged 6.2

 Final Selling Text (For a 1400‑Word Article)

FOR SALE: Brand‑New GM LT4 Supercharged 6.2 Crate Engine – 650 hp / 650 lb‑ft

Take your performance build to the next level with GM’s legendary GM LT4 Supercharged 6.2 V‑8, the most powerful OEM production engine ever offered by Chevrolet or Cadillac. Originally installed in the Corvette Z06, Camaro ZL1, and CTS‑V, this Gen V crate engine delivers factory‑certified 650 horsepower and 650 lb‑ft of torque using premium pump gas.

Key Features & Highlights:

• Gen V Small‑Block architecture with direct injection, variable valve timing, and AFM technology—built for reliability and efficiency.

• High‑efficiency Eaton TVS 1.7 L supercharger, spinning up to 20,000 rpm to generate over 9 psi of boost and full 650 hp output.

• High‑strength internals: forged steel crankshaft, forged powdered‑metal rods, forged aluminum pistons, titanium intake valves, and Rotocast A356‑T6 heads.

• Smooth, race‑ready valvetrain with 0.492″ intake / 0.551″ exhaust lift, optimizing power and response up to 6,600 rpm.

Available Configurations:

1. Standard Wet‑Sump Crate Engine (Part #19431955): Ideal starter package, ~450 lbs, includes engine and crate packaging—electronics sold separately. MSRP ~$17,500–$18,000 USD.

2. Dry‑Sump Crate Engine (Part #19416595): Designed for high‑duty or track applications where oil control is critical. MSRP ~$18,000–$21,500 USD.

3. E‑ROD Full Emissions Kit: Complete CARB‑legal package with ECU, harness, sensors, pedal, and cats—for seamless street‑legal installations. MSRP ~$18,800–$20,900 USD.

4. Turnkey Donor Swap Kit: Includes used LT4 (from CTS‑V, ZL1, or Z06 under ~75k miles), transmission, wiring, radiator, fuel pump, and ready‑to‑run pallet—very attractive turnkey package for ~$19,999 USD (6‑month lead time).

Installation & Compatibility:

• Compatible with T56 manual or GM automatic transmissions (4L80E, 6L80E, 8L90E, 10L90E).

• For basic crate engines, purchase of the appropriate Controller Kit (GM P/N 19355174 / 19366789) and harness is required.

• Premium pump gas is required for safe operation—fuel grade 91–93 octane.

• Emissions legality varies: only E‑ROD kits meet full CARB requirements in US states like California.

• Ideal for classic muscle cars, resto builds, hot rods, or any custom swap where big torque and factory quality are needed.

Why Choose GM LT4 Supercharged 6.2?

• Built by GM at its high‑performance build centers for OEM vehicles: unmatched in refinement and durability.

• Proven on road and track in high‑end GM products.

• Rarer than other LS/LT options: increases exclusivity and future resale value.

• Rev‑matched and ready for major upgrades—cam, tune, exhaust, headers, even boost increase.

Shipping & Lead Time:

• Engines ship crated and covered, 24‑month / 50,000‑mile limited warranty included.

• Shipping is typically available via freight ground only. Shipping time is 2–6 weeks depending on vendor and backorders.

• Orders must be placed by phone/email due to legal paperwork required.

Contact Information:

, your trusted GM Performance specialist.

• Price: $17,500 USD for wet‑sump crate engine; upward for dry / E‑ROD versions.

• Call [NUMBER] or email [EMAIL] for availability, shipping quotes, and accessories (controller kits, accessory drive kits, fuel systems).