Features

• Precision CNC Machined
• 5-Angle Valve Job
• Unshrouded Combustion Chambers
• Large Spring Diameter Pockets
• Professionally Assembled
• Machined in the USA

Specs

• Intake Runner: 185 cc 
• Intake Valve: 2.080 in.
• Exhaust Runner: 80 cc
• Exhaust Valve: 1.600 in.
• Spring Closed: 145 lbs. at 1.800 in.
• Spring Open: 325 lbs. at 1.200 in.
• Valve Guide: Manganese Bronze
• Valve Seal Material: Viton
• Retainer Material: Steel
• Valve Spacing: OEM
• Valve Seats: Hardened Steel
• Weight: 55 lbs.

Flow (28 in. Water)

• .200 in. Lift: 142 intake/124 Exhaust 
• .300 in. Lift: 202 intake/159 Exhaust 
• .400 in. Lift: 251 intake/190 Exhaust 
• .500 in. Lift: 278 intake/203 Exhaust 
• .600 in. Lift: 284 intake/219 Exhaust 
• .700 in. Lift: 286 intake/231 Exhaust 

Recommended Components

• Intake Gasket: Fel-Pro 375-1213
• Exhaust Gasket: Fel-Pro 375-1432
• Head Gasket: Fel-Pro 375-8553PT
• Head Bolts: ARP 070-144-3601
• Spark Plug: .750 in. Reach Gasket Seat
• Torque Specs: 80 ft-lbs. in 3 increments using 30 wt oil

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

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