TCM 825 EFI

The veteran of the Teague Custom Marine engine line, the 825 EFI traces its lineage decades back to the TCM 800 Carb. With proven 500 plus hour run time durability and a staggering 900 lb/ft of torque output, the 825 EFI is a true workhorse! Based upon a standard deck World Merlin 3 Billet Splayed Main Caps block, with a Callies Magnum crankshaft, Manley H-Beam connecting rods, Brodix BB2Xtra proprietary CNC Aluminum Cylinder Heads, and TCM Platinum stud roller rockers, the 509 cubic inch TCM 825 EFI is configured for maximum value per horsepower, without sacrificing performance or durability.

New additions include a fully integrated Aeromotive fuel system on the engine, which supplies the 3.3L Whipple Twin Screw Supercharger.

850

850 EFI

This engine comes standard with top shelf CMI Stainless Steel Water Jacketed Headers and a Cupronickel Whipple intercooler, which are fed by the finest full stainless steel twin stage water pump from Latham Marine.

Featuring high RPM rated, short travel Johnson hydraulic lifters, and a proprietary LS1 firing order camshaft, maintenance is kept to a minimum and valve lash adjustments are eliminated. The TCM 825 EFI is finished with fully color matched billet aluminum accessories and custom plumbing, with combined with custom supercharger and valve cover powder paint options for a truly custom engine installation.

Specifications

825EFI Specifications
HORSEPOWER825HP
DISPLACEMENT:509 Cu.In. (8.4L)
REQUIRED FUEL:91 Octane Unleaded
WARRANTY:One (1) Year Limited
RECOMMENDED MAX W.O.T. RPM
RANGE:
5,600-6,000
BLOCK:World Merlin III Iron w/ Billet Splayed
Mains, Standard Deck, Blueprinted
CRANKSHAFT:Callies Magnum 4340 Forged Steel,
4.000" Stroke, Internally Balanced
CONNECTING RODS:Manley H-Beam w/ ARP 2000 Bolts
PISTONS/PINS:Custom CP Pistons Forged
Aluminum/CP3S Pins
RINGS/BEARINGS:Total Seal/Clevite M-77H Series
CYLINDER HEADS:Brodix BB2Xtra Proprietary
CNC Ported Heads, Polished or Hard
Anodized, 11/32” Bronze Guides,
Tucker H-Series 52C Rockwell Valve
Seats
VALVES:Ferrea SS Intake and SuperAlloy
Inconel Exhaust
CAMSHAFT/VALVETRAIN:Proprietary Hydraulic Roller 8620
Billet Core Camshaft, Rollmaster
Gold Series Double Roller Chain
Drive, Custom-Spec Short-Travel
Lifters, Trend Pushrods, Isky Tool
Room Valve Springs, Manley Tooled
Steel Retainers, ARP Rocker Studs,
TCM Platinum Roller Rockers, Stud
Girdles


INDUCTION SYSTEM:
3.3L Whipple Screw Compressor w/
Low-Profile Cupronickel Intercooler,
Electronic Fuel Injection, Integrated
Aeromotive Fuel System w/ TCM
Billet FST Filter Head

IGNITION:
Mil-Spec EFI Wiring Harness w/
Adaptive Warning Protection, MSD
6M2L Marine Ignition with Soft Touch
Rev Control
SEA PUMP:Latham SS Twin Stage Pump w/
Custom TCM SS Adapters
EXHAUST:CMI E-Tops or CMI Sport Tubes
DRIVE/TRANSMISSION:Teague Platinum XR Bravo, or IMCO
SCX


ADDITIONAL ENGINE FEATURES:
TCM Deep Sump Oil Pan,,SS/Billet
Brackets and Pulleys, OEM
Bellhousing and Drive Coupler,
Engine Mounts


NECESSARY RIGGING
COMPONENTS:
TCM Remote Dual Pass Cupronickel
Oil Cooler, TCM Auxiliary Water
Pickup, TCM 10" Sea Strainer w/
Pressure Relief and Flush, and
Associated TCM Plumbing and
Dumps




COLOR AND CUSTOMIZATION:
Block: Gloss Black Standard,
Custom Paint Available / Heads:
Polished or Black Anodized / Valve
Covers: Polished or Gloss Black
Standard, Custom Powder Coat or
Carbon Fiber Available /
Supercharger: Polished or Gloss
Black Standard, Custom Coating
Available / Pulleys: Polished or 5
Anodized Color Choices Standard

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