Butler Performance Original 389, 400, 421, 428, 455 Block, Custom Bore, CORE-389-455
We do not sell core blocks alone.
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.
Description
The BlockWe 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 |
WE BUY PONTIAC BLOCKS!!
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. We do not sell core blocks alone.
- Remanufactured
Categories
- Crate Engines and Builder Kits - Build Yours Like Butler - 500hp+ Pontiac EFI Muscle Car Engine on Pump Gas
- Crate Engines and Builder Kits - Build Yours Like Butler - 500hp+ Pontiac Carbureted Muscle Car Engine on Pump Gas
- Crate Engines and Builder Kits - Build Yours Like Butler - 600hp+ Torqstorm Supercharged Engine
- Crate Engines and Builder Kits - Engine Blocks
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