Atomic 698 GT-A | Race Spec | 1000hp Capable

The Atomic 698 GT-A is a  engineered, high-performance long engine designed for enthusiasts who demand the ultimate in power and reliability. Built upon a foundation of carefully selected and prepared components, the 698 GT-A delivers exceptional horsepower and torque while ensuring the durability needed for demanding applications.  

Key Features:

• Optimized Block:
  • Ultrasonic tested seasoned Ford block, chosen for maximum wall thickness and strength.  
  • Deburred oil drainback holes, webbing, and coolant passages for enhanced flow.  
• Precision Crankshaft:
  • Stage 2 prepared crankshaft: crack tested before being polished and chamfered   
• High-Performance Pistons & Rods:
  • Cosworth F1 Series dish top pistons with 8.7:1 compression ratio and 4-valve reliefs.  
  • Atomic billet Superleggera connecting rods with CA625 bolts as standard, cylindrically ground/honed tunnels, and pressure-fed gudgeons for optimal strength and cooling.   
• Enhanced Cylinder Head:
  • Fully prepped Atomic Stage 4 cylinder head with CNC machined valve job, hand porting, and streamlined injector boss tracts.  
  • Stainless oversize valves, Ovate Race Spec springs, and H/D collet set for superior valve control.  
• Robust Valve Train & Timing:
  • Atomic anti pump-up lifters and preload settings optimized for high RPM.  
  • Atomic billet camshafts (customer's choice of profile).  
  • Atomic heavy-duty timing chain kit with billet steel crank sprocket and parabolic billet guide.  
• Strengthened Bottom End:
  • Atomic hi-tensile 10mm billet steel main cap girdle and windage tray for increased block rigidity.   
  • ACL Competition bearings with 360-degree thrust bearings as standard  
  • Hi-flowed #6 and #7 main bearings.
  • Atomic/ATI Super-Damper ANDRA/SFI approved harmonic balancer and hub assembly.  
• Oil System Enhancements:
  • Atomic ALL-STEEL Billet gear oil pump with EDM cut gears, billet steel end plate, and upgraded relief spring.  
  • Race spec clearances throughout the engine to suit intended usage.  
• Precision Machining & Assembly:
  • Fully machined block: torque plate honed cylinders, decked to crank centerline, main saddle alignment checked.  
  • Fine Ra finish on deck surface and chambers relieved.  
  • Precision blueprinting and assembly of long motor.  
•  Tested Before Delivery:  
  • Engine is fully test-run in our engine test cell with comprehensive report supplied.  

Included:

• New brass Welch plugs.  
• Engine paint (choice of color).  
• Powder coated rocker cover and timing cover (choice of hundreds of colors).  
• Torque specs manual, run-in procedure sheet, spare gaskets, merch.   
• 14 liters of run-in 15W/40 oil, Ford oil filter, and NGK spark plugs.  
• 12-month conditional warranty.  

Optional Upgrades:

• Part grout-filling of coolant passages.  
• Fire ring head gasket kit.  
• CNC drilled block and head to suit 14.3mm size head studs.  
• Atomic M14.3mm Tool Steel Head stud kit with O/S washers.     
• Adjustable vernier gear cam sprockets.  
• VTC Delete spigots and Blank-off plates.  
• Atomic Roller rockers.  
• Titanium valve spring retainers.  
• Torrington crank thrust bearing upgrade.  
• High volume Big Ears sump upgrade.  
• Dowelling of crank to flexplate/flywheel.  
• -10 AN welded in rocker cover breathers.