598 - 9.8 Liter Engine

598 - 9.8L Engine

Engine Specifications & Materials

• 610 ft/lbs @ 1800 RPM, 242hp @ 2200 RPM

• Type: 90 Degree 9.8L V8

• Displacement: 598 cubic inches 

• Compression Ratio: 11:0

• Valve Configuration: Overhead/Pushrod Actuated

• Valve Lifters: Hydraulic Roller

• Bore x Stroke: 4.60 x 4.50 in 

• Block Cast from High Nickel 220 BHN Cast Iron

• J-E Custom Forged 2618 Full Round 4-Ring Pistons

• Dart Forged Steel 4340 Center Counterweighted Crankshaft, Blower Keyed for Front Drive

• Extreme Duty 4340 Forged I-Beam Connecting Rods

• Custom Double True Roller Timing Chain with Hardened Billet Gears

• Proprietary Propane Compatible Valve Seats and Extreme Duty Valves

• Main Bearing Caps: 5, 4 Bolt Steel Billet Main Caps

• Rotators on all Valves and Hardened Rocker Arms and Push Rods

• Balance Method: Internal

• Intake Manifold: Single Plane Aluminum

• Firing Order: 1-8-4-3-6-5-7-2

Contact Raymac Racing Engines

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Call us for a free quote!

817.705.5424   or  940.594.0350

Office: Mansfield, Texas       Shop/Dyno: Ft. Worth, Texas

All products are subject to availability. Customizing a part may delay shipping. All prices are subject to change.

09/05/18 California law now requires any reseller of California based manufactured parts (including by not limited to Dart, Race Winning Brands, AFR, Scat and Brodix) to inform it's customers of the following

(in accordance with Proposition 65):