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

SKU: 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

Pricing: $1,599.95

Customize Your Item

Choose Your Head

- Choose Your Head -

* required

Choose Retainer Option

- Choose Retainer Option -

* required

Choose Cam Install Option

- Choose Cam Install Option -

* required

Choose Break in Oil Option

- Choose Break in Oil Option -

* required

Cam Lobe Separation/ Idle Qualit

- Cam Lobe Separation/ Idle Qualit -

* required

We recommend a Polymer Gear on all Hyd. Roller Applications. 0.491 (Use with Factory GM HEI / Points & Mallory / Mallory Must Be Drilled for Larger Dia Pin), .500, for MSD, Pertronix, FAST, and Holley Dist Only

Choose your Polymer Distr. Gear

- Choose your Polymer Distr. Gear -

* required

Choose Your Lifter Set

- Choose Your Lifter Set -

* required

Choose your Rocker Arms

- Choose your Rocker Arms -

* required

Choose Your Timing Set

- Choose Your Timing Set -

* required

Aftermarket Valley pans or modifications of factor valley pan will be necessary when converting to Hyd Roller due to clearance issues

Choose Valley Pan Option

- 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.