Shafiroff Racing Drag Race Engines
Shafiroff Racing Pump Gas Crate Engines

632 Big Block Chevy UltraStreet Big Dawg Twisted SR20 Crate Engine Shown With Optional Equipment
632/1050HP $19,950
Less Carb & Ignition

1000HP Not Enough? We've Taken Our Proven 598 SR20 To The Next Level And Came Up With This Package For You Power Hungry Maniacs That Absolutely Have To Have The Ultimate Weapon In Today's "Street Warfare"!

  • Horsepower
  • Torque
  • Bore & Stroke
  • Compression Ratio
  • Fuel Requirement
  • 1050 @ 6400 RPM
  • 895 @ 5000 RPM
  • 4.600 x 4.750
  • 10.75 to 1
  • 92/93 Octane

  • Dart Big "M" Tall Deck Block w/4 Bolt Splayed Caps
  • Manley 4340 4.750" Stroke Steel Crank
  • Manley 4340 H-Beam Steel Rods w/ARP2000 Bolts
  • Clevite 77 "H" Series Main & Rod Bearings
  • Custom Diamond 10.75-1 Forged Aluminum Pistons
  • Total Seal Plasma Moly Ring Set
  • SSRE Custom Steel Billet Roller Cam (1)
  • HIPPO Severe Duty Roller Lifters w/Hi-Pressure Pin Oiling
  • Cloyes Billet Timing Set w/Torrington Bearing
  • Dart SR20 Heads w/CNC Ported Chambers
  • Stainless 2.400" Intake & 1.800" Exhaust Valves
  • Manley Nextek 1.640" Dual Springs
  • Titanium Retainers & 10° Locks
  • ARP Head Stud Kit w/Parallel Ground Washers
  • T&D Pro Series "1 Piece Stand" Shaft Rockers
  • FelPro HP Head Gaskets w/Pre-Flattened Steel Wire
  • Edelbrock Super Victor Port Matched Single Dominator Intake
  • SSRE/Moroso Pro Eliminator Oil Pan w/Windage Tray
  • Moroso Race Prepped "Winged" Pump w/Tig Welded HD Pickup
  • SFI Approved Harmonic Balancer
  • 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
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
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
Blocks:
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)
$4000
Crankshafts:
Callies USA Made 4340 Dragonslayer Crank w/Dura-tough Heat Treating$645
$150 credit applied
Callies USA Made 4340 Magnum Plus Pro Series Crank$1045
$150 credit applied
Connecting Rods:
Callies Ultra H-Beam 4330M Timken Steel Rods$395
$300 credit applied
Callies Ultra I-Beam 4330M Timken Steel Rods$795
$300 credit applied
Oliver Steel Billet Rods$795
$300 credit applied
Pistons - Pins - Rings - Bearings:
Hellfire® Rings$175
Tool Steel "Heavy Wall" Wrist Pins$225
Calico Coated Bearing Package$150
Lifters:
HIPPO Severe Duty Pressure Fed Roller Lifters w/Solid Bushed Rollers (No Needle Bearings)$300
$295 credit applied
Isky Red Zone Solid Roller Lifters w/EZX "Needle Free" Bearing Option$500
$295 credit applied
Timing:
Jesel "Solid One Piece" Belt Drive$895
Oil Pumps - Oil Pans:
Custom Locking & Calibrated Dipstick$95
Additional Parts - Labor - Accessories:
Cometic MLS (Multi Layered Steel) Head Gaskets$95
ATI SFI Approved Super Damper Balancer (Includes Hone To Fit Labor)$245
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)$50
Custom Powder Coating Packages Available$Call
Custom Locking & Calibrated Dipstick$95
Show Quality Polished Chrome Plated Finish For Sheet Metal Valve CoversAdditional$275