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Butler/Comp Hi-Torq Street Performance Billet Roller Cam Master Kit (HR) 300/306, 248/254, .563/.581, 1Choose Lobe Separation

BPI-K-BP805X
Found in our 500+ cu. in. Butler Performance Engines

(HR) (Std Firing Order/ Std Journals) 300/306, 248/254, .563/.581, 112LS with 1.5 ratio rockers
Lift with 1.65 ratio rockers .619/.639
Was: $1,599.95
Sale: $1,439.96

Customize Your Item

- Choose Your Head -
 * required
- Choose Retainer Option -
 * required
- Choose Cam Install Option -
 * required
- Choose Break in Oil Option -
 * required
- Cam Lobe Separation/ Idle Qualit -
 * required
- Choose your Polymer Distr. Gear -
 * required
- Choose Your Lifter Set -
 * required
- Choose your Rocker Arms -
 * required
- Choose Your Timing Set -
 * required
- Choose Valley Pan Option -
 * required
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Description

Butler custom cam master kits are designed and tested kits built with the parts we think are best for the application. Each kit has the correct cam/lifter/and spring combination with everything you need to perform a top end performance upgrade without guessing if it will work.

Choice of Hyd. roller lifters

o Morel 5884R
o Johnson 2112-OPR

Timing Set: Pontiac Pro Billet Timing Set
o Billet Gears, 9 Keyway Crank Sprocket w/ Seamed Chain **Hone to fit if needed**

BPI Hydraulic Roller Spring (Cast Iron D-Port)
o Type Dual With Damper O.D. Outer: 1.465" I.D. Outer: 1.091" I.D. Inner: .807" Coil Bind: .950" Seat Load: 140@1.600" Open Load: 350@1.100" Rate (lbs/in): 375 Valve Springs

Valve Springs: EDL-5845 (Cast Iron SD/RAIV and Edelbrock Heads)
o 1.460 in. O.D., 1.200 in. Coil Bind Height

Retainers:
o 10 Degree Chromoly Retainers- For 1.437''-1.500" Diameter Springs

Also includes a pushrod length checking tool for accurate push rod selection and matching locks and valve stem seals

**Stock valley pan will not allow clearance for tie bar on hyd roller lifters. See TPP-0421 or BFA fabricated valley pans.**

Choose Idle Quality:

  • Milder 114 Lobe Separation- Smoother, More Vacuum- BP8051SP
  • Performance 112 Lobe Separation- Medium Choppiness- BP8050SP
  • More Aggressive 110 Lobe Separation- Rougher Style Choppy Idle- BP8052SP

What Is Lobe-Separation Angle? LSA is the distance from the centerline of the intake lobe to the centerline of exhaust lobe.

 Tighter lobe separation results in a rougher idle and less idle manifold vacuum but delivers more midrange and peak power. Wider lobe separation resulted in a higher top-end and makes more vacuum but makes less peak power with a less aggressive idle.

Details

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Shipping Information

  • Item Requires Shipping
  • 25.0 lbs.
  • Free Shipping!

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