MM

Mast Motorsports

Visit store

Factory Mast Cylinder Heads LS3 Medium Bore | Factory Mast | CNC Ported | Cylinder Head - Pair w/ Valves

Mast Motorsports

4.5 (123)

LS3 Medium Bore | Factory Mast | CNC Ported | Cylinder Head - Pair

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$3,145.00

Quantity

Color

Black

Quantity

Description

We took the Factory Mast LS3- and CNC ported it for even more improvement. Our Factory Mast Cylinder Head starts out with our "as cast" port which we now offer a CNC port for more airflow. This allows for an additional option and price p...

Delivery & Returns

Mast Motorsports

4.9 (24)

Product description loading

This is the product description text that will appear here.

Related to Mast Motorsports

Pro Touring Store

4.9

(31)

Holley Fuel Regulator Bypass Plug for Sniper Pump Modules

$22.95

9% off

Billet LSA Fuel Rails by Aeroflow Supercharged LS9

(1)

$269.00$295.00

12% off

Mopar Performance Hellcat Wiring Harness Kit - Hellcrate 6.2L 77072452AE Hemi Controller

$2,650.00$2,995.00

Charcoal Canister Vapor Trapper for Fuel Tank Vent - Universal - Hotrod Muscle Car

$309.99

Hellcat Intercooler Manifolds - Billet AN Low Profile - Demon Redeye Hellephant

$449.00

Hellcat 6.2L FEAD Alternator + Power Steering Pump Kit by Mopar Performance

$696.00

Oil Pressure Sensor For Holley Terminator X LS Systems ACDelco GM

(1)

$64.99

Discover top brands

Exclusive offer available

OOFOS

4.5 (176.7K)

Fashion Nova

4.3 (428.9K)

Exclusive offer available

Little Sleepies

4.9 (400.9K)

Exclusive offer available

Aviator Nation

4.5 (92.2K)

Exclusive offer available

Mandala Scrubs

4.6 (11.1K)

Exclusive offer available

The GLD Shop

4.7 (168K)

Culture Kings US

4.7 (146.6K)

32 Degrees

4.7 (227.9K)

Princess Polly USA

4.5 (408K)

Rockstar Original

4.6 (181.4K)

MM

LS3 Medium Bore | Factory Mast | CNC Ported | Cylinder Head - Pair

Delivery & Returns

Mast Motorsports

More from Mast Motorsports

LS3 Large Bore | Factory Mast | As Cast Port | Cylinder Head - Pair

LS3 Medium Bore | Factory Mast | CNC Ported | Cylinder Head - Single Bare

LS3 Medium Bore | Factory Mast | As Cast Port | Cylinder Head - Pair

LS3 Large Bore | Factory Mast | As Cast Port | Cylinder Head - Single Bare

LS3 Medium Bore | Factory Mast | As Cast Port | Cylinder Head - Single Bare

Black Label LS & LT - Dual Valve Spring & Titanium Retainer Kit - 0.660 Lift

Mast Stroker Windage Tray

Exhaust Valve Kit 1.600 Dia - 5.450 Valve Length Hydraulic Lifter - Inconel Severe Duty - 8 pcs

Intake Valve Kit 2.040 Dia - 5.450 Valve Length - Hydraulic Lifter -Lightweight Steel- 8 pcs

Intake Valve Kit 2.165 Dia - 5.450 Valve Length - Hydraulic Lifter -Lightweight Steel - 8 pcs

Intake Valve Kit 2.250 Dia - 5.450 Valve Length - Hydraulic Lifter -Lightweight Steel- 8 pcs

Stainless Steel Exhaust Valves

Related to Mast Motorsports

Motion Raceworks

Sam's Spray Wax Kit w/ Microfiber Towel

Military Green Flying M Shirt

Fragola -8 AN Black Nylon Race Hose (By The Foot) 840008

Push-To-Connect 90° 1/8" NPT to 1/4" Tubing 25-10004

Fragola -10 AN Black Nylon Race Hose (By The Foot) 840010

Motion Raceworks Essential Shirt

Motion Raceworks Momentary Small Push Button w/6' Wound Cord (Red or Green)

Fragola -6 AN Black Nylon Race Hose (By The Foot) 840006

Push-to-Connect Straight 1/8" NPT to 1/4" Hose 25-10003

Black Anodized Exhaust Trim Ring (Single, 3"-5")

Ask for Motion Shirt (District Material)

Billet E85 Flex Fuel Sensor Mount Dual Channel In Line 6, 8, 10AN Sensor Not Included

B

Borowski Race Engines

CNC Ported Stage III GM LS3 Cylinder Heads

F Body LS Oil Pan Kit - Pan, Bolts, Pick Up, Windage Tray

Windage Tray Kit for Dart LS Next SHP

Double Roller Billet Timing Chain - Heavy Duty, LS, Adjustable

Hughes 4L80E Full Race Transmission, Manual Shift with Trans-Brake

Trend LS Pushrods - 3/8 .135 Wall Double Tapered Ends - IN STOCK

Diamond R Series LS1 Street/Strip Series Forged Pistons

CNC-Ported CID, 6-Bolt, LT4 Cylinder Heads, Assembled

FAST Air-to-Water Intercooler for LSXHR Intake Manifold

FuelTech FT700 Vehicle Control Unit

BRE CNC'd Brodix 13.5 Degree Cathedral Port LS Heads for Boost

Callies Center Counterweight (CCW) Apex Crank for LS & LT Engines

Pro Touring Store

Holley Fuel Regulator Bypass Plug for Sniper Pump Modules

Billet LSA Fuel Rails by Aeroflow Supercharged LS9

Mopar Performance Hellcat Wiring Harness Kit - Hellcrate 6.2L 77072452AE Hemi Controller

Charcoal Canister Vapor Trapper for Fuel Tank Vent - Universal - Hotrod Muscle Car

Hellcat Intercooler Manifolds - Billet AN Low Profile - Demon Redeye Hellephant

Hellcat 6.2L FEAD Alternator + Power Steering Pump Kit by Mopar Performance

Oil Pressure Sensor For Holley Terminator X LS Systems ACDelco GM

GM 4L80e Flexplate for 8-BOLT LS & LT APPLICATIONS - 4L85e LSA LSX LT1 L86

Viking Front Coilover Conversion - 67-69 Camaro Firebird F-Body

BTR Hyperdrive LS Accessory Drive - LS1 LS2 LS3 LS6 LS Serpentine Mid Mount

Universal Tow Hooks - Tie Down - Stainless - Chassis

Male NPT to Male AN Adapters

LOWDOLLER-MOTORSPORTS

0-100 PSI Pressure Sensor PN: 7990100

0-150 PSI Pressure Sensor PN: 7990150

PN: 8990100-0-100 PSI Pressure Sensor

PN: 8990150-0-150 PSI Pressure Sensor

Intake Air Temp Sensor PN: 25036751

6 Ft Pressure Sensor Cable with 90* Rubber Boot PN: 356602

PCL-1/8"-1/4" 90° Elbow Push Lock Fittings PN: 251002

PC-1/8"-1/4" Straight Push Lock Fitting PN: 251001

Mac Valve 3 Port Boost Control Solenoid 35A-AAA-DDBA-1BA PN: 1520335

RB290° Rubber Boot PN: RB290

15 Ft Pressure Sensor Cable with 90* Rubber Boot PN: 356605

3/8 NPT Coolant Temp Sensor PN: 25036979

Discover top brands

OOFOS

Fashion Nova

Little Sleepies

Aviator Nation

Mandala Scrubs

The GLD Shop

Culture Kings US

32 Degrees