ATK Chevy 598CI Short Block Forged Flat Top SP45 Engine

This ATK SP45 Chevy 598CI Short Block Forged Flat Top is built to handle the intense power of your car at its peak. Constructed from bulletproof material, it contains forged crankshaft, connecting rods and pistons for flawless performance. This short block makes an ideal choice for your hot rods.

Engine Specifications:

• Block: Dart Big M 9.8 4 Bolt Main 2pc Seal
  
• Bore/Stroke: 4.600 x 4.500
  
• Displacement: 589 C.I.D.
  
• Crankshaft: Manley 4340 Forged 4.500" Stroke Internally Balanced 2pc.
  
• Connecting Rods: Manley 4340 Forged H Beam 6.385" ARP 8740 Bolts
  
• Pistons: Forged +3cc Flat Top
  
• Piston Rings: Moly Rings
  
• Compression Ratio: 112cc=10.0:1/118cc=9.7:1
  
• Camshaft Bearings: Dart 3 Hole Coated Installed & Clocked
  
• Freeze Plugs: Brass Installed & Sealed
  
• Oil Galley Plugs: Installed & Sealed
  
• Weight: 360
  

Every great build needs a solid foundation! For that reason, we take the hard work out of the picture by selling short blocks that are ready for you to complete yourself. Our GM Short Blocks are most commonly packaged as the engine block assembled with Pistons, Piston Rings and Crankshaft installed.

ATK specializes in muscle. With the highest quality internal parts and Dyno Proven combinations of every engine built, ATK is able to add the most bang for your buck and back it up with an industry leading warranty.

Don't forget the engine paint!