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Crate Engine Builder Kit by Butler, 505-541 cu.in. w/ IAII Block, Ready to Assemble

BP-ENGINE-KIT-505-541

505-541 cu.in. Crate Engine builder kit form with IA II block, Ready to assemble

Builder Kits are shipped unassembled. Must be assembled by you or your shop

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(866)762-7527

Description

505-541 cu.in. Crate Engine Builder Kit  with IA II block Ready to assemble

Aftermarket Block-sonic tested, completely deburred, bored and honed with torque plate - line honed, deck squared, cam bearings

  • Forged or Billet Crank 4.250 - 4.500 Stroke 2.200 Rod
  • Eagle Rods 6.800", ARP 2000 Bolts
  • Ross Pistons by BP 4.350 - 4.375" bore (Any Compression Ratio Avail.)
  • Ferrea Pins .990 x 2.930"
  • Rings Total Seal/Classic Race
  • Race Bearings Rods, Mains CL or FM
  • BP Billet Timing Gears & Chain
  • Main Studs
  • Comp Flat Tappet, Hyd. Roller, or Solid Roller Cam
  • Roller Rockers
  • Canton Oil Pan
  • Butler Pro Oil Pump
  • HD Oil Pump Drive Shaft
  • Performance Damper
  • Timing Cover
  • Edel. Heads, Ported, Ferrea Valves, BP Valve Job, Springs, 10deg Retainers/Locks, 7/16 Studs
  • Choice of FAST or Holley EFI
  • Choice to add EFI Tank Solution. Click here to see EFI Solution Kits
  • Intake
  • Water Pump
  • BP Push Rods
  • BP Aluminum Valley Pan
  • Internally Balanced
  • Ready to Assemble

     

BP 505-541 c.i. Crate Engine builder kit w/aftermarket block (unassembled)

contact us

  Options:

BP Crate Engine Upgrade
IAII/BP Aluminum Block
BP Crate Engine Upgrade
BP/Edel Wideport

BP Crate Engine Upgrade

EFI System

BP Crate Engine Upgrade

Dual Sync EFI Distributor and Wires

BP Crate Engine Upgrade

March Serpentine Pulleys and Accessories

BP Crate Engine Upgrade
BP Aluminum Valve Covers
BP Crate Engine Upgrade
Oliver Billet Steel Rods
BP Crate Engine Upgrade
GRP Aluminum Rods

 IAII BLOCK

Standard with every IA II block**
  • Siamese Cylinders: 4.170 to 4.400" bores with min. of .200 wall thickness @ 4.400 bore. This provides outstanding cylinder wall rigidity. No other block has this
  • All steel registered main caps: With splayed four bolt pattern on the three center mains which adds rigidity
  • Block cast: Allows clearance for 4.750 stroke crank.
  • Main webs: Strengthened to maximum width possible.
  • Cam tunnels: Reinforced.
  • Wider pan rails: Provides better oil pan gasket sealing and gasket retention.
  • Thicker deck surfaces: Provides added strength and aids in cylinder head sealing
  • Solid lifter galley: With drilled oil returns that prevents lifter bore breakage and adds strength
  • Improved oiling: Front main oil feed, which adds longevity and helps prevent front main bearing "starvation".
  • Bottom of the block: Is solid to the bend, above the pan rail, for added strength
  • IA II Blocks have Redesigned Block Cooling Passages: Improves cooling to all cylinders.
  • Provisions for external cooling: 1/2" NPT holes provided at rear of block. Gives you the option to dry deck the block.
  • Dual bell housing bolt patterns: For both Pontiac and "corporate" housings.
  • Lifter bores: Are deeper to allow the use of standard type "corporate" lifters.
  • Bottoms of cylinders: Are notched to clear strokes up to 4.75". A 5.0" stroke is possible with some grinding.
  • Head bolt bosses: Are tied to cylinder walls and the exterior block walls are thicker for added strength.
  • Oil filter passages: Are threaded for easy remote filter mounting. Oil pump passages have corner plugs at 90 degree turns to reduce flow restriction. (Plugs are included with kit.)
  • Threaded front external oil passage: for lubricating superchargers or turbo's. The IA II Block uses standard Pontiac 5 bolt Motor mount pattern.
  • Standard deck height: IA II Blocks are available with 3" or 3 1/4' ' mains .
  • Threaded freeze plug holes: For safety and wall rigidity. (Freeze plugs are provided with block.) This lessens the chance of the engine blowing out a freeze plug. 

  • * Drilling is required to match your heads water holes. Estimated drilling time; 10 minutes.
  • There is no longer a material alloy surcharge!
  • Our IA II blocks are machined buy one of the best aftermarket engine machine shops in the country. All blocks are check out on a CNC coordinate measuring machine with-in process probing during manufacturing. We pressure test and sonic check every block. IA II Blocks come with a full warranty for material and workmanship.
  • ALL Blocks are shipped DRY DECK*

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

Details

  • BP-ENGINE-KIT-505-541
  • BP-ENGINE-KIT-505-541
  • Butler Performance
  • New

Shipping Information

  • Item Requires Shipping

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