Level III & IV TMS stainless steel big valve 4.6 engines and engine packages offer even higher power and reliability levels for street and racing use. Combined with proper intake and exhaust, a naturally aspirated street 4.6 Level III engine can make over 440 hp on 92 octane pump gas. Super/turbocharged power on a Level III can easily exceed 800 hp with an intercooler. We plan on submitting Level III packages with street cams for EPA and CARB emissions testing and expect to achieve 50 state legality. These are efficient, powerful engines that will give you tremendous driving enjoyment with economy and longevity. The stainless big valve heads give power and durability just not possible with stock valve heads. Level IV engines are capable of even higher power levels that are now at 1000 hp. If you want hot, get a Level III or Level IV TMS Cobra engine.

GO TO:

Cobra Engines:

LEVEL I

LEVEL II

LEVEL III & IV