Head comes fully assembled and ready to install – no costly core charges or deposits, or exchange programs that can add to downtime. CNC milling ensures that every head is ported to the maximized design eliminating variances that hand porting can produce. Developed on the flow bench in conjunction with dyno and track testing to ensure the ultimate in performance and durability. Includes GYTR® Performance Camshaft Kit. Also includes stock valvetrain, and cam gears for durability and easy maintenance. GYTR® Head Assemblies are used by the Yamaha Factory SX/MX and ATV Race Teams.

This is a fully assembled cylinder head assembly complete with valve and cams, valves are shimmed already this is a true bolt on and go cylinder head.

Fits '10~'13 YZ450F

Retail $2179.95

TOTAL FOR OEM PARTS REPLACEMENT: 1,932.94

CHEAPER THAN OEM REPLACEMENT (REBUILD) 

SEE PRICE LIST BELOW

SALE $999.97 with FREE Shipping, buy now as once they are gone they are gone!

• INTAKE BOOT #33D-13597-00-00  $29.07
• CIRCLIP (2) #93440-41178-00  $6.08
• CAMSHAFT ASSY #1 #33D-12170-00-00  $236.80
• CAMSHAFT ASSY #2 #33D-12180-00-00  $217.25
• CYLINDER HEAD ASSY #33D-11102-00-00  $706.44
•  INTAKE VALVE #33D-12111-00-00 (2)$184.82
• EXHAUST VALVE 33D-12121-00-00 (2)$206.94
• VALVE SPRING SEAT 33D-12116-00-00 (2)$14.64
• VALVE SPRING SEAT 2 33D-12126-00-00 (2) $4.64
• VALVE SPRING INNER (2) 33D-12113-00-00 $9.88
• VALVE SPRING OUTER (2) 33D-12114-00-00 $15.40
• VALVE SPRING RETAINER (2) 33D-12117-00-00 $11.00
• VALVE SPRING RETAINER (2) 3LD-12117-00-00 $22.02
• VALVE SPRING RETAINER LOCK (8) 3LD-12118-00-00 $25.68
• VALVE STEM SEAL (4) 541Y-12119-00-00 $23.72
• SHIMS (4) 3LD-12168-00-00 $38.64
• LIFTER VALVE (2) 5EB-12153-10-00 $56.90
• LIFTER VALVE 2 (2) 4C8-12153-10-00 $71.12 
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