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MHS 4.6L / 5.4L 4V Stage 4 Turbo Camshafts

Upgraded Springs required.
Pricing: $1,449.00
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Part Number  MHS-4V-STG4-T
Name  4V Stage 4 Turbo 
Duration @ .050"  236 / 236 
Lift  .480" / .480" 
Lobe Sep Angle  115 + 5 
Center Lines  110 / 120 
Springs Required?  Yes
Suggested Valve Springs  MHS / PAC Stage 3 or Stage 4
Valve Reliefs Required?   No 

These camshafts will support over 1500 WHP. Ported Heads with oversize valves / seats highly recommended. Stock, unported 03 / 04 Cobra and Mach 1 Heads OK. Single Groove valves recommended due to RPM Range. Designed 82/84 - Pro Mod 94mm Single or Twins up to 72/75. Ported Short Runner, Sullivan Single Plane or Hogan sheet metal Intake Manifold suggested. Shift points will be 8400 - 8800 RPM depending on Turbo / Intake combination. Will support up to 40lbs of boost. 4L80E, TH400 or Powerglide w/ Brake and 4000 - 4800 stall suggested.

For larger Single Turbo applications that may have some trouble spooling up, we suggest tightening up the LSA to 113. You will still want to run 5 Degrees of advance making your center lines 108 / 118.

We have made over 1400 with this camshaft profile with a Single T4 88mm and stock, unported 03 / 04 Cobra Cylinder heads with nothing other than our Stage 4 Springs, Manley Singe Groove Valves and new exhaust seats. NO PORT WORK.

There is absolutely no reason to run a larger camshaft profile than this for a Turbo 4V. These cylinder heads do not need a ton of duration to make insane power. If you are having trouble making optimal power, it is not due to a lack of camshaft duration. There is either an intake manifold restriction or back pressure issue due to turbine housing size. All a larger camshaft profile will do is hurt spool time. 



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  • Item Requires Shipping
  • 16.0 lbs.
  • W30.0000” x H8.0000” x L8.0000”
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