Product Summary

327, 350, 377, 383, Solid Flat Tappet Camshaft Type

  • Tight lash series produces broad range of power
  • Superior lobe design

Key Specs

MFG. Part #91515001
BrandSpeedway Motors
Camshaft TypeSolid Flat Tappet

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Speedway Motors 91515001 Details

Speedway Tight Lash cams produce a broad range of power due to the short amount of cam degrees it takes to go from .020" lift to .050" cam lift. This is known as major intensity. The shorter the span the more torque the lobe will produce, and for the lobe to run excellent up at higher RPM, it must have an excellent area under the curve. You can tell these do because of the very high duration at .200" cam lift.

Compare our numbers to other cam profiles and you will find that these are far superior!

Item Details

355-377 ci, high torque 1/4-3/8 mile oval power.

IMCA Approved.


CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

Speedway Motors 91515001 Specifications

MFG. Part #91515001
BrandSpeedway Motors
Camshaft TypeSolid Flat Tappet
RPM Range2750-6500
Intake Duration282
Exhaust Duration301
Intake Duration (.050" Lift)245
Exhaust Duration (.050" Lift)251
Lobe Separation106 °
Sold in QuantityEach