598 Big Block Chevy X20 Pro Series Drag Race Engine

598 Big Block Chevy X20 Pro Series Drag Race Engine

598 Big Block Chevy X20 Pro Series Drag Race Engine Shown With Optional Equipment

New X20 20° Head Design!

9.8" Low Deck Block

Introductory Sale Price

New! 598/1190HP $23,750
Includes Carb & Ignition

Not Just New ... Revolutionary!! After A Year Of Testing We're Ready To Introduce To The World Our New And Exclusive "X20" Design Cylinder Head And Custom Engine Package. Unparalled High RPM Stability With Its' Exclusive (1) Piece Stand Shaft Rocker System And "Clean Sheet Of Paper" Redesign Over The Currently Popular 20° BBC Cylinder Heads Out There.

A Completely New Valve Arrangement In The Combustion Chamber Not Only Allows For Bigger Intake And Exhaust Valves But Also Reducing Any Cylinder Wall Or Exhaust Valve Interferance that Normally Results In An Airflow Restriction. The End Result Is An Extremely Stable Cylinder Head That Accelerates Off The Line And Off Gear Changes To Produce Quicker ET's Over Engines With Similar Peak HP Numbers.

More Power, Better Valve Train Reliability And Increased Torque Where It Counts. The Best Part Of This "Trifecta" Is That It Comes To You At Virtually No Increase In Cost!!

  • Horsepower
  • Torque
  • Bore & Stroke
  • Compression Ratio
  • 1190 @ 7700 RPM
  • 910 @ 6300 RPM
  • 4.600 x 4.500
  • 15.5 to 1

  • Dart Big "M" 9.8" Low Deck Block w/4 Bolt Splayed Caps
  • Manley 4340 Fully Center Counterweighted 4.500" Stroke Crank
  • Callies Ultra-H 4340 Steel Rods w/Premium ARP H-11 Bolts
  • Clevite 77 "H" Series Main & Rod Bearings
  • SSRE/Diamond 15.5-1 Custom Gas Ported Pistons
  • .9/.9/3.0mm AP Steel Ring Set
  • SSRE 55mm Large Core 7/4 Swap Billet Roller Cam
  • Isky Red Zone .904" Solid Roller Lifters w/Hi-Pressure Pin Oiling
  • Jesel "Original Style" Belt Drive
  • New Design SSRE X20 Fully CNC Ported 20° Heads
  • Titanium 2.400" Intake & 1.800" Exhaust Valves
  • PAC Racing 1.670" Triple Springs
  • Titanium Retainers & 10° Bead Locs
  • ARP Head Stud Kit w/Parallel Ground Washers
  • Exclusive Jesel "1 Piece Stand" Shaft Rockers
  • Trend Super Duty Pushrods
  • Cometic MLS Head Gaskets
  • Dart Inner Valley Stud Kit
  • Custom Edelbrock Super Victor Port Matched Single Dominator Intake
  • SSRE/Moroso Pro Eliminator Oil Pan w/Windage Tray
  • Moroso Winged Design Race Prepped Oil Pump
  • ATI Super Damper
  • APD 1250 Billet Enforcer 4500 Carb & Black Widow Spacer
  • MSD Electronic Ignition w/Moroso Shielded Wires
  • SR20 Spec SSRE Sheet Metal Valve Covers
  • Complete Assembly Internally Balanced
  • Individually Dyno Tested & Tuned
  • Actual Dyno Sheet Provided
Fuel System Components
Why Buy A Carburetor From Us?

Yes, you can certainly purchase a stock carb from the big mail order companies but we've seen carbs out of the box down on power as much as 40HP and between 15-20HP is common. That's why we disassemble and blueprint EVERY carburetor before we ever bolt it on your engine. We then tune, adjust and jet your carb on your engine so you get every ounce of power that you paid for.

Even if you're considering one of our Engine Kits or simply looking for a replacement carb, the same blueprint work is done and we dyno test it on a comparable engine to yours before it ships!
 $Priceless
APD 1250 CFM 4500 Series Carb Package includes: Carb, APD Black Widow Spacer, Aluminum AN Fuel Fittings, Studs & Gaskets. Dyno Tuned, Jetted and Calibrated on your engine. $Included
MagnaFuel ProStar 500 Billet Gerotor Electric Fuel PumpImage Close$399
Igniton Components
MSD Electronic Ignition Package includes MSD Pro Billet Locked Distributor w/Ford HEI-Style Cap, Bronze Gear, Custom MSD 8.5mm Wire Set. Dyno Tested and Calibrated on your engine. $Included
MSD Crank Trigger Ignition Upgrade $295
Blocks
Dart Steel Billet Main Cap Upgrade $450
Brodix/Dart Aluminum Block w/Special Head Stud Kit & Additional Machining
(Slightly Less Peak HP)
 $4000
Pistons - Pins - Rings - Bearings
Tool Steel "Heavy Wall" Wrist Pins $225
Calico Coated Bearing Package $150
Lifters
Isky Red Zone .904 Solid Roller Lifters w/EZX "Needle Free" Bearing Option $295
Oil Pumps - Oil Pans - Vacuum Pump
Moroso HD Billet Aluminum Oil PumpImage Close$245
Vacuum Pump Kit Includes: Moroso 3 Vane Vacuum Pump & Adjustable Relief Valve, Breather Tank, AN Fittings, Jones Mandrel & Bracket Kit w/Radius Tooth HTD Belt. Image Close$1075
Additional Parts - Labor - Accessories
SFI Heavy Duty Flexplate & ARP Bolt Package $125
JW "The Wheel" Severe Duty SFI Flex PlateImage Close$269
PowerMaster Hi-Torque Mini StarterImage Close$229
Meziere 55GPH Electric Water PumpImage Close$450
Show Quality Polished Chrome Plated Finish For Sheet Metal Valve Covers (Additional Charge)Image Close$Call