Shafiroff Racing Drag Race Engines
Shafiroff Racing Pump Gas Crate Engines

598 Big Block Chevy UltraStreet Big Dawg Twisted Crate Engine Shown With Optional Equipment
598/920HP $15,950
Less Carb & Ignition

"That's Just Twisted!" How Do You Get 920HP Out Of A Low Deck Pump Gas Engine With A Cast 4bbl Manifold & 1 Carburetor?
We Know ... And Now It's Available To You!!

  • Horsepower
  • Torque
  • Bore & Stroke
  • Compression Ratio
  • Fuel Requirement
  • 920 @ 6300 RPM
  • 800 @ 5000 RPM
  • 4.600 x 4.500
  • 10.95 to 1
  • 92/93 Octane

  • Dart Big "M" Low Deck Block w/Splayed 4 Bolt Main Caps
  • SSRE/Scat 4340 4.500" Stroke Forged Steel Crank (1)
  • SSRE/Scat 4340 6.535" H-Beam Steel Rods w/L19 Rod Bolts (2)
  • Clevite 77 "H" Series Main & Rod Bearings
  • JE/SRP 10.95-1 Forged Aluminum Pistons w/Coated Skirts
  • Total Seal Plasma Moly Ring Set
  • SSRE Custom "Street Race" Solid Roller Billet Cam (3)
  • Comp Cams Solid Roller Lifters
  • Cloyes Billet True Roller Timing Set w/Torrington Bearing
  • Brodix Fully CNC Ported 383 "Head Hunter" Heads
  • 2.350" Intake / 1.850" Exhaust Stainless Valves
  • 1.640" Manley NexTek Roller Springs w/Titanium Retainers
  • ARP Head Studs w/Parallel Ground Washers
  • T&D 1.7 Shaft Rockers w/(1) Piece Intake Stands
  • Chromemoly (1) Piece .080" Wall Pushrods
  • FelPro HP Head Gaskets w/Pre-Flattened Steel Wire
  • Brodix "Big Mouth" Dominator Intake w/SuperMod Porting
  • SSRE/Moroso Stroker Street/Strip Oil Pan w/Windage Tray
  • Moroso Race Prepped Oil Pump w/Tig Welded HD Pickup
  • GM Performance Chrome Front Cover w/Billet Timing Pointer
  • Hi-Performance Harmonic Balancer w/Degree Markings
  • Complete Assembly Internally Balanced
  • Every Engine Dyno Tested & Tuned
  • Your Actual Dyno Sheet Provided
Nitrous Package$910

Planning On Adding Nitrous? We've Put Together A Preferred Option Package Of Our Most Popular And Highly Recommended Heavy Duty Components ... With The Added Bonus Of Savings!!

●  Manley 4340 Non-Twist Forged & Nitrided Crank$250
●  Manley H-Beam 4340 Steel Rods w/ARP 2000 Bolts$300
●  Calico Coated Bearing Package$150
●  Hellfire® Rings$175
●  Cometic MLS (Multi Layered Steel) Head Gaskets$95
●  Dart Inner Valley Stud Kit (Improved Head Gasket Sealing)$95

Total Package Value = $1065 - Save $155!

Savings Include $55 Component Credit
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!
QuickFuel 1050 CFM FX-4710 Carb Package includes: Carb w/Billet Metering Blocks & Throttle Body, Phenolic Spacer, Aluminum AN Fuel Fittings, Studs & Gaskets. Dyno Tuned, Jetted and Calibrated on your engine.$1095
QuickFuel 1150 CFM FX-4711 Carb Package includes: Carb w/Billet Metering Blocks & Throttle Body, Phenolic Spacer, Aluminum AN Fuel Fittings, Studs & Gaskets. Dyno Tuned, Jetted and Calibrated on your engine.$1195
Mechanical Fuel Pump Package Includes: High Volume Race Design 6 Valve Pump, Composite Fuel Pump Rod (Required For Our Custom Cams), XRP -8 Braided Fuel Line Inlet Kit w/8AN Lines, Fittings and Fuel Filter. Plumbed, Installed & Dyno Tested On Your Engine.$475
Aeromotive Phantom In-Tank Electric Fuel Pump Includes: In-Tank Fuel Pump, Black Anodized Hanger Assembly, Internal Baffling System. (Uses -6AN Fittings and Requires Return Style Fuel System). Rated for up to 1000HP.$549
Aeromotive A1000 Electric Fuel Pump. Rated for up to 1200HP$375
Aeromotive A1000 Regulator for A1000 Fuel Pump$175
Race Gas Fuel Additave - "Pump Gas Without The Detonation". Available by the quart or the case. Mixing 1 oz. per gallon will yield 2 full octane points.$Call
Igniton Components:
MSD Electronic Ignition Package Includes: MSD Pro Billet Distributor, Hi Perf Gear, Custom Moroso 8mm Wire Set. Custom Curved and Calibrated To Your Engine.$395
MSD 6AL Digital Electronic Ignition Box w/Hi-Speed Rev Limiter$245
MSD 6AL-2 Digital Electronic Ignition Box w/Launch Control & Hi-Speed Rev Limiter$282
MSD Blaster 3 Hi Performance Ignition Coil w/HEI Style Post$49
Composite Distributor Gear (if required)$125
Machine Block and Install Lifter Valley Screen Kit$75
Dart Inner Valley Stud Kit (Improved Head Gasket Sealing)$95
Brodix/Dart Aluminum Block w/Special Head Stud Kit & Additional Machining
(Slightly Less Peak HP)
Manley 4340 Non-Twist Forged & Nitrided Crank$250
Callies USA Made 4340 Dragonslayer Crank w/Dura-tough Heat Treating$795
Callies USA Made 4340 Magnum Plus Pro Series Crank$1195
Connecting Rods:
Manley H-Beam 4340 Steel Rods w/ARP 2000 Bolts$300
Callies Ultra I-Beam 4330M Timken Steel Rods$1095
Oliver Steel Billet Rods$1095
Pistons - Pins - Rings - Bearings:
Hellfire® Rings$175
Calico Coated Bearing Package$150
HIPPO Severe Duty Roller Lifters w/Hi-Pressure Pin Oiling (Extended Lifter Life)$295
HIPPO Severe Duty Pressure Fed Roller Lifters w/Solid Bushed Rollers (No Needle Bearings)$595
Isky Red Zone Solid Roller Lifters w/EZX "Needle Free" Bearing Option$795
Jesel "Solid One Piece" Belt Drive$895
Oil Pumps - Oil Pans:
Moroso Kickout Style Pro Pan w/Solid Louvered Tray & Main Cap Partitions For Added Power & Oil Control. (Includes New Wing Design Oil Pump)$250
Custom Locking & Calibrated Dipstick$95
Additional Parts - Labor - Accessories:
Cometic MLS (Multi Layered Steel) Head Gaskets$95
SFI Approved Harmonic Balancer (Required At All Race Tracks)$150
ATI SFI Approved Super Damper Balancer (Includes Hone To Fit Labor)$295
Moroso Vacuum Pump Kit w/Adjustable Relief Valve (Installed)$975
SFI Heavy Duty Flexplate & ARP Bolt Package$125
JW "The Wheel" Severe Duty SFI Flex Plate$225
PowerMaster Hi-Torque Mini Starter$229
Painless Performance Hot Shot Relay Kit (Recommended for above starter)$39
Edelbrock Aluminum "High Volume" Mechanical Water Pump (Short or Long Version)$250
Meziere 55GPH Electric Water Pump$450
Billet Specialties Tru Trac Serpentine System$Call
Billet Specialties V-Track Pulley System$Call
Polished Cast Aluminum Front Cover (Oil Pan Restrictions May Apply)$50
EnduraShine Intake Finish w/ARP Stainless Steel Hardware (Edelbrock Intakes Only)$225
Custom Powder Coating Packages Available$Call
Custom Locking & Calibrated Dipstick$95
SSRE Engraved Sheet Metal Valve Covers w/Breathers$350
Show Quality Polished Chrome Plated Finish For Sheet Metal Valve CoversAdditional$275