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A addition to range of thermal management cooling system upgrade components; Cosworth LowTemp Motorsport Thermostats engineered to precisely control engine temperature in demanding condits found in typical motorsport use. Each Cosworth LowTemp Motorsport Thermostats is manufactured to highest standards includes a unique feature that accurately controls coolant flow to prevent temperature coolant surge that cause engine damage. Learn More

Increased engine performance often means increased engine speed load. Original factory crankshafts not be able to withstand added stress; resulting in catastrophic failure. Cosworth billet crankshafts machined from ultra strong EN40B steel; engineered to endure harshest condits have been tested to withstand over 1;000HP.
Key Features
Superior lubrication
Profiled counterweights
High strength
Light weight Learn More

The connecting is vital link between piston power. When engine output is increased; demands placed on connecting increase as well. To ensure engine reliability in condits; original connecting rods should be replaced with heavy duty specification parts. Cosworth Forged Connecting Rods manufactured from high strength 4340 (EN24) steel machined to exacting tolerances.
Key Features
Strong; light weight H-beam design
Heavy duty bolt (260;000psi)
Manufactured from 4340 (EN24) steel
Small bushed floating pin Learn More

Cosworths High Flow Intake Systems feature increased diameter; large smooth radius bent aluminum inlet tubes superior flow management coupled with a high flow filter maximum flow performance.
Each includes an integrated heat shield designed to isolate air intake from engine heat delivering cold into engine superior power conversion. filter element is large; conical in shape engineered to dramatically reduce intake restriction resulting in additional power torque.
Specs:
Increase in performance by typically up to 15%
Conical Cosworth blue filter with Cosworth embossed composite cap
Lightweight aluminum mandrel shaped inlet tube maximum airflow
Integrated heat shield cold isolation
Hardware included easy; perfect fit
Reusable filter
Manufactured in USA Learn More

The Cosworth Filler is machined from solid aluminum with traditional Cosworth three prong ergonomic style. This light weight fiiler includes a genuine factory O-ring seal; pre-installed to ensure leak free operation on your engine. Each features a durable anodized finish.
Specs:
Machined from solid aluminum
Durable anodized finish
Includes pre-install O-ring leak free operation
Ergonomic ; three prong design
Proudly Made in USA Learn More

The Cosworth Filler is machined from solid aluminum with traditional Cosworth three prong ergonomic style. This light weight fiiler includes a genuine factory O-ring seal; pre-installed to ensure leak free operation on your engine. Each features a durable anodized finish.
Specs:
Machined from solid aluminum
Durable anodized finish
Includes pre-install O-ring leak free operation
Ergonomic ; three prong design
Proudly Made in USA Learn More

Cosworth High Performance engine assemblies the perfect basis your high performance application. Each version gone through countless hours of engineering evaluation to determine best combination of parts build specification; ensuring maximum reliable performance. Each Cosworth High Performance enginembly starts with new select components as foundation of performance build. Every block is thoroughly inspected before cylinders honed to perfection. We then balance rotating assembly that includes either a factory forged crankshaft or Cosworth Billet crank along with Cosworth Forged connecting rods; Cosworth Tri-Metal bearings Cosworth Forged Pistons. motorsport grade parts then professionally assembled by expert engine builders in Cosworth enginembly facility. Each High Performance enginembly includes a complete specification sheet listing critical dimensions along with a serialized plaque. maximum performance; combine with a Cosworth ported Valve Cylinder Head camshaft set.
Subaru EJ25 High Performance Short Block 2.5L
The Cosworth EJ25 is an excellent starting point high performance track applications.
New Subaru EJ25 EJ257 Block
New Subaru EJ25 Forged Crankshaft or Cosworth Billet Crank (79mm)
Cosworth Forged H-beam connecting rods
Cosworth Forged Pistons (99.5mm) rings
Cosworth Tri-metal bearings
Balanced to within .5 gram
Complete blue-print assembly
Ring set
Bearing clearance checked
Deck height checked
Connecting side clearance checked
Crankshaft float checked
Mitsubishi 4G63 (Evolution VII-IX) High Performance Short Block 2.0L
The Cosworth 2.0L 4G63 is an excellent starting point high performance track applications.
New Mitsubishi 4G63 Evolution Block
New Mitsubishi forged crankshaft (88mm)
Cosworth Forged H-beam connecting rods
Cosworth Forged Pistons (85mm) rings
Cosworth Tri-metal bearings
Cosworth Heavy Duty main studs
Piston squirt jets
Balanced to within .5 gram
Complete blue-print assembly
Ring set
Bearing clearance checked
Deck height checked
Connecting side clearance checked
Crankshaft float checked
Mitsubishi 4G63 (Evolution VII-IX) High Performance Short Block 2.2L
The Cosworth 4G63 2.2L stroker engine combines perfect bore to stroke ratio; yielding potentially gains in torque while still allowing engine to rotate produce power at higher rpms.
New Mitsubishi 4G63 Evolution Block
New Cosworth Billet Crank (94mm)
Cosworth Forged H-beam connecting rods
Cosworth Forged Pistons (86mm) rings
Cosworth Tri-metal bearings
Cosworth Heavy Duty main studs
Piston squirt jets
Balanced to within .5 gram
Complete blue-print assembly
Ring g Learn More

The piston is of most important components within engine. It be subjected to directional change up to times every second must withstand acceleration forces of 8500gs. Cosworth high performance forged pistons designed engineered to withstand this type of punishment still perform. Cosworth's pistons manufactured using same methods as Formula pistons include features such anti scuff skirt coating; ultra-strong pins; polished and patented antidetonation bands. Additionally; each application uses a unique forging to minimize weight ensure strongest possible piston design.
Key Features
Unique forgings each application
Xylan anti scuff skirt coating
Polished tops (reduces carbon build up relieves stress)
Manufactured from proprietary alloy (CosAl 010)
Ultra strong pin
Patented anti-detonation bands Learn More

The piston is of most important components within engine. It be subjected to directional change up to times every second must withstand acceleration forces of 8500gs. Cosworth high performance forged pistons designed engineered to withstand this type of punishment still perform. Cosworth's pistons manufactured using same methods as Formula pistons include features such anti scuff skirt coating; ultra-strong pins; polished and patented antidetonation bands. Additionally; each application uses a unique forging to minimize weight ensure strongest possible piston design.
Key Features
Unique forgings each application
Xylan anti scuff skirt coating
Polished tops (reduces carbon build up relieves stress)
Manufactured from proprietary alloy (CosAl 010)
Ultra strong pin
Patented anti-detonation bands Learn More