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Butler Performance Original 389, 400, 421, 428, 455 Block, Custom Bore, CORE-389-455

CORE-389-400-421-428-455
Original Performance Prepped Block
Cleaned
Magnafluxed
Sonic Tested

Additional services for Blocks (added charge)
completely deburred
bored and honed with torque plate
line honed with ARP main studs
deck squared
cam bearings and brass freeze plugs installed
ready to build

DUE TO LIMITED AVAILABILITY, WE ONLY SELL BLOCKS IN KITS OR ENGINES.
Please Call for Availability
(866)762-7527
Availability: In stock, ready to order for an engine kit, short block (kit or assembled), or a complete engine only

Description

The Block

We start with the exact same blocks you would build on your own. It's what we do to take these old dirty blocks that you see here to a beautiful custom built Butler engine. It takes many critical steps in order to become the proper foundation to be a custom Butler Performance engine.


Step 1- 3 Step Cleaning Process

-Baked, Blasted, and Cleaned

Step 2- Visually Inspected

 

Step 3- Magnafluxed/Sonic Tested

 

Step 4- Replace Dowel Pins

 

Step 5- Align Bored (if required)/ Align Honed

 

Step 6- Bored and Honed with a Torque Plate

 

Step 7- Square Decked

 

Step 8- Deburred/ Final Multi Prep Process

 

(It takes over a full days work for the final prepping process. Including tapping all bolt holes and cleaning all oil galleys)

Step 9- Final Jet Wash/Cleaning/Wipe Down

 

Step 10- Ready for Assembly

Blocks start out in old worn, rusty, and grimy conditions

3-Step cleaning Process where they are heat cleaned, sand blasted, and cleaned

Machines used in block process

Block being honed

Custom machine shop at Butler Performance

Block comes out clean and ready to be assembled

WE BUY PONTIAC BLOCKS!!

If you have any 1965-1978 Pontiac blocks for sale contact us. 389-400-421-428-455.
We will even arrange shipping to us.
Don’t let more of our Pontiacs get scrapped or just rust away- we will put them to good use!
Email scott@butlerperformance.com

Details

  • CORE-389-400-421-428-455
  • CORE-389-400-421-428-455
  • Butler Performance
  • In stock, ready to order for an engine kit, short block (kit or assembled), or a complete engine only
  • Remanufactured

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