BTR GODZILLA U-231 CAMSHAFT
231/24X .663"/.663" 110 LSA
INTAKE LOBE LIFT @ TDC: 0.094
 
Rising from the depths.... Put a NUCLEAR MISSILE in your N/A high-effort 7.3 Godzilla with the latest grind from BTR! We use proprietary in-house designed lobes and our own Landis LT grinding machines and REM polish process to bring you another killer cam from BTR. Spintron tested, dyno validated, this camshaft will seriously kick your high-effort 7.3 build in the pants! Expect 130+ HP and 60+ FT/LBS gains over stock, and 18+ HP and 10+ FT/LBS and more RPM range than the legendary BTR Godzilla Truck Norris!
Due to tight valve clearance, and the extra RPM capability, we recommend only using this camshaft with a quality aftermarket rod & piston combination. 
 
Engine Family: FORD GODZILLA 7.3L APPLICATIONS WITH AFTERMARKET RODS & PISTONS
Recommended Engine Size: 7.3L - (6.8 applications not ideal) 
Recommended Valve Spring: PSI 1517 Beehive
VVT Limiter: BTR-VVT-GZ-8CAM (INCLUDED)
INTAKE DURATION @.050": 231
EXHAUST DURATION @.050": 24X
LOBE LIFT INTAKE: 0.368
LOBE LIFT EXHAUST: 0.368
INTAKE LOBE LIFT @ T.D.C.: 0.094
ROCKER ARM RATIO: 1.8
NET LIFT INTAKE: 0.663
NET LIFT EXHAUST: 0.663
LOBE SEPARATION ANGLE: 110
RPM Operating Range: 2200-6800
Expected Cam Swap Gains (P2P): 130+HP 60+FT-LBS
Idle Quality: Aggressive idle sound without sacrificing overall driveability.
Torque Converter Characteristics: Requires an aftermarket converter
Drivability: Good streetability, with a nice aggressive sound
 
  Torque @ 3500 RPM
  Peak Torque Ft-Lbs.
  Peak Power HP
  Trinity Intake / Truck Norris Cam
  565 Ft-Lbs       
  613 @ 4600 RPM
  646 @ 6200 RPM
  Trinity Intake / BTR U-231 Cam 
  574 Ft-Lbs 
  623 @ 4700 RPM       
  664 @ 6300 RPM
 
FOR GODZILLA TORQUE SPECS, DIAGRAMS, AND OTHER TECHNICAL INFO, VISIT: BRIANTOOLEYRACING.COM/TECHNICAL
NOTE: To take full advantage of this grind, it is imperative to utilize VVT control and engine tuning. A proper calibration with attention to detail in this respect will make this camshaft SHINE! *See Cam Card for recommended Holley VVT Target Table.*
NOTE: The ‘U231’ Camshaft requires the use of a VVT ‘Limiter’ (BTR-VVT-GZ-8CAM - INCLUDED) to be installed in your cam phaser.