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Crate Engine Builder Kit by Butler, 450-600hp, 461-474 cu. in. Ready to Assemble, Carbureted


  • Butler Performance Engine Builder Kit- Carbureted
  • Includes Butler Balanced Rotating Assembly
  • 4.250" Stroke Cast or Forged Crank/H-Beam Rods
  • Custom machined and ready to assemble
  • All engine blocks undergo the "Butler Process"
  • Edelbrock Heads and Intake
  • Comp Cam and Johnson Lifters
  • Stage 2 Quadrajet or Holley Ultra Double Pumper Carb
  • Fully machined and ready to assemble
  • Builder Kits are shipped unassembled. Must be assembled by you or your shop

Unique Item
Availability: Due to Popular Demand current lead time runs about 16-20 weeks
Pricing: $13,595.00

Customize Your Item

- Choose Your HP Range -
 * required
- Choose Crank Option -
 * required
- Choose Your Carb -
 * required
- Choose Your MSD -
 * required
- Choose Your Distributor Kit -
 * required
- Choose Your Valve Covers -
 * required
- Choose Logo Style on Cover -
 * required
- Choose Flexplate or Flywheel -
 * required
- Choose Your Block Color -
 * required
Qty: 1


Butler Crate Engine in Builder Kit form- Ready to Assemble

461-474cu. in.
Starting at 450-550 HP


  • Pontiac Block with Option for 4-Bolt Main With Main Studs upgrade, Dip Stick tube installed
  • Butler Ross Rotating Assembly- With Crank, H-Beam Rods, Ross Forged Pistons and bearings
  • Cast or Forged Crank 4.250 Stroke
  • H-Beam Rods 6.800"
  • BP Ross Pistons and Pins
  • Total Seal Rings
  • C77 Race Bearings
  • BP Billet Gears and Chains
  • High Volume Oil Pump
  • BP/COMP Hyd Roller Cam
  • Hyd Roller Lifters
  • BP Custom Pushrods 5/16 .116" Wall
  • SFI Damper
  • Roller Rockers
  • Edelbrock Out of Box or BP Built Edelbrock Heads
  • Ferrea Valves
  • Comp Springs, Locks, Chromoly Retainers
  • Canton Oil Pan & Pickup
  • Port Matched Intake
  • BP Aluminum Valley Pan
  • Choice of Stage 2 Quadrajet or Holley Ultra Double Pumper Carb
  • Flowkooler Water Pump
  • New 11 Bolt Timing Cover, Plates, and Sleeves
  • Ready to Run Billet Distributor or MSD Kit with 6AL Ignition Box
  • IMI Starter
  • Engine Paint and Valve Cover Options

Images show assembled with optional parts. Contact us for detailed quote for your application and specifications.


  • BP-ENGINE-KIT-461-474-CARB
  • BP-ENGINE-KIT-461-474-CARB
  • Butler Performance
  • Due to Popular Demand current lead time runs about 16-20 weeks
  • New

Shipping Information

  • Item Requires Shipping

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