Product Summary

Hydraulic Roller Tappet Camshaft Type

  • Lift measurements given with 1.7 ratio rocker arms (factory ratio)
  • 3 bolt camshafts, may require 3 bolt, 4x reluctor wheel cam gear 355-12586481
  • Not for use in pollution controlled vehicles
  • Idle-5000 RPM range
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Key Specs

MFG. Part #91088958753
Camshaft TypeHydraulic Roller Tappet
RPM RangeIdle-5000
Intake Duration (.050" Lift)218
Exhaust Duration (.050" Lift)227
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Speedway Motors 91088958753 Details

Looking to unleash your LS engine’s potential without spending a fortune? Speedway has the solution for you with economical performance camshafts that break the dyno rather than your bank account. These camshafts are very similar in profile to factory performance camshafts. The LS engine design has been exhalted as a great base for reliable horsepower due to their high flowing head design and rock solid bottom end. The majority of these motors leaving the factory have large horsepower potentials restricted for emissions by economy camshafts. Speedway brings these camshaft offerings to the table to turn an economy or truck motor into a high output engine. These camshafts are not compatible with cyclinder deactivation (AFM, DOD) or variable valve timing, they simply make power. ECU reprogramming will be necessary.

  • Lift measurements given with 1.7 ratio rocker arms (factory ratio)
  • 3 bolt camshafts, may require 3 bolt, 4x reluctor wheel cam gear 355-12586481
  • Not for use in pollution controlled vehicles
  • Idle-5000 RPM range

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 91088958753 Specifications

KEY SPECS
MFG. Part #91088958753
BrandSpeedway Motors
Camshaft TypeHydraulic Roller Tappet
RPM RangeIdle-5000
Intake Duration (.050" Lift)218
Exhaust Duration (.050" Lift)227
GENERAL
Intake Valve Lift w/ Rocker Arm Ratio0.523"
Exhaust Valve Lift w/ Rocker Arm Ratio0.524"
Intake Duration218
Exhaust Duration227
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Great product very well made

5.0

6 months ago

A.C. Garcia

Santa Fe, NM

Verified

I purchased this for my LS swap worked out great.

Would Recommend

Showing 1 of 1 reviews

Questions & Answers

12 Questions • 11 Answers

Have 03 silverado with 5.3 and 706 heads, 373 gears what springs do I need to work with this cam and will factory converter hold up?

by Justin

• 2 years ago

1 answer

I have a 2001 5.3 with a carburetor and mad ignition I want a cam that has some lope I run a 350 turbo trans with a 3500 stall converter and 342 gears what cam would you recommend that has a nice lope at idle I'm looking for that muscle car sound

by Tommy

• 6 years ago

1 answer

Will this cam be good for my 2002 5.3 in a 1975 corvette with t10 4spd

by Ryanp

• 7 years ago

1 answer

What is the LSA of this crankshaftm

by Adetola

• 8 years ago

1 answer

I have a 4x4 2004 suburban and was wanting more lower end power for towing would this cam give me that

by Dylan

• 8 years ago

2 answers

Will this cam work in a 4.8 or is it to big for it I'm thinking about running a 2000 to 2400 stall

by Rod

• 8 years ago

1 answer

will this cam work in a 2000 5.3 LS engine

by BOB

• 8 years ago

1 answer

Is it almost the same as .525/.525

by Jake

• 8 years ago

1 answer

Can this be used with factory blue springs?

by Birdman with no wings

• 8 years ago

1 answer

what is the lobe separation

by charlie

• 8 years ago

1 answer

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