565 Big Block Chevy Sportsman Nitrous Engine
Nitrous Series Engines

565 Big Block Chevy Sportsman Nitrous Engine $17,150

565 Big Block Chevy Sportsman Nitrous Engine Shown With Optional Equipment
565/1250HP Nitrous Series $17,150
Less Carb, Nitrous Plate & Ignition

Designed Specifically For The Sportsman Racer That Needs Over 1200 HP And Wants To Use A Mild Single Stage Of Nitrous To Get The Deal Done. Perfect For Index Racing Classes And Ideally Suited For 8.50 Racers. Super Consistant, Reliable And Probably The Most Cost Effective Way To Make 1200+ Horsepower On The Planet. It's Not Just A Deal, Its' A STEAL!!

  • Horsepower
  • Bore & Stroke
  • Compression Ratio
  • 1250 @ 7200 RPM
  • 4.600 x 4.250
  • 14 to 1
  • Dart Big "M" 9.8" Low Deck Block w/4 Bolt Splayed Caps
  • Manley 4340 Fully Counterweighted 4.250" Stroke Steel Crank
  • Molnar "PowerAdder" 4340 H-Beam Steel Rods w/ARP Asymmetrical Bolts
  • Clevite 77 "H" Series Main & Rod Bearings
  • Custom Diamond Gas Ported Nitrous Pistons
  • H13 Tool Steel Wrist Pins
  • Total Seal .043" Nitrous Ring Set
  • SSRE Custom 7/4 Swap Steel Nitrous Billet Roller Cam
  • Comp Cams Heavy Duty Solid Roller Lifters
  • Rollmaster Billet Timing Set w/IWIS Chain & Torrington Bearing
  • Brodix BB3X 363 Rectangle Port Alum. Heads w/CNC Chambers
  • PAC Racing 1247 Triple Springs w/Titanium Retainers & 10° Locks
  • ARP Head Studs w/Parallel Ground Washers
  • Scorpion Race Series Aluminum Intake Roller Rockers
  • Comp Cams Ultra Pro Magnum XD Steel Exhaust Roller Rockers
  • Cometic MLS Head Gaskets
  • Inner Valley Stud Kit
  • BMP Merlin X Dominator Intake Manifold
  • SSRE/Moroso Custom Stroker Oil Pan w/Windage Tray
  • Moroso Race Prepped Oil Pump w/Tig-Welded HD Pickup
  • GM Performance Chrome Front Cover w/Billet Pointer
  • SFI Approved Harmonic Balancer
  • Complete Assembly Internally Balanced
  • Individually Dyno Tested & Tuned
  • Actual Dyno Sheet Provided
Shafiroff Racing Engine Options
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 1050 CFM 4500 Series Carb Package includes: 3 Circuit Billet Carb, Phenolic Spacer, Aluminum AN Fuel Fittings, Studs & Gaskets. Dyno Tuned, Jetted and Calibrated on your engine.ImageShafiroff Racing Available Options Close$1395
APD 1150 CFM 4500 Series Carb Package includes: 3 Circuit Billet Carb, Phenolic Spacer, Aluminum AN Fuel Fittings, Studs & Gaskets. Dyno Tuned, Jetted and Calibrated on your engine.ImageShafiroff Racing Available Options Close$1395
APD "Black Widow" 2" SpacerImageShafiroff Racing Available Options Close$175
MagnaFuel ProStar 500 Billet Gerotor Electric Fuel PumpImageShafiroff Racing Available Options Close$430
Igniton Components
MSD Electronic Ignition Package includes MSD 85705 Pro Billet Locked Distributor w/Ford HEI-Style Cap, Bronze Gear, Custom MSD/Moroso 8.5mm Wire Set. Dyno Tested and Calibrated on your engine. $795
Crank Trigger Ignition Upgrade $295
MSD 7AL-2 Electronic Ignition Box (Direct Plug-in For Our MSD Distributors) $759
MSD 82613 HVC-2 Coil $265
Blocks
Dart Steel Billet Main Cap Upgrade $450
Special "Nitrous Prepped" Brodix Aluminum Block $4500
HIP® Process (Hot Isostatic Pressing) For Increased Durability With Aluminum Blocks $675
Crankshafts
Callies USA Made 4340 Magnum Plus Pro Series Crank $1895
Connecting Rods
Callies Ultra H-Beam 4330M Timken Steel Rods w/ARP H-11 Bolts $1295
Oliver Steel Billet Rods $1195
GRP Aluminum Rods $Call
Pistons - Pins - Rings - Bearings
Tool Steel "M2" Rings for Extreme Nitrous $395
Calico Coated Bearing Package $175
Lifters
HIPPO Severe Duty Roller Lifters w/Hi-Pressure Pin Oiling (Extended Lifter Life) $295
Morel "Black Mamba" Needleless Roller Lifters $695
Isky Red Zone Solid Roller Lifters w/EZX "Needle Free" Bearing Option $845
Valvetrain
T&D Shaft Rocker System Available In 1.70, 1.75 or 1.80 Ratio (Split Ratio Sets No Extra Charge) $1795
Needle Bearing Tip Option for T&D Shaft Rockers $295
Timing
Cloyes 2 Piece Aluminum Timing CoverImageShafiroff Racing Available Options Close$195
Jesel "Original 2 pc" Belt Drive $1145
Nitrous Systems
SpeedTech Diffuser Plate Nitrous System - Installed $795
SpeedTech Liquid Force "Fogger Style" Nitrous System - Plumbed & Installed $1750
Oil Pumps - Oil Pans - Vacuum Pump
Moroso HD Billet Aluminum Oil PumpImageShafiroff Racing Available Options Close$395
Moroso Kickout Style Pro Pan w/Solid Louvered Tray & Main Cap Partitions For Added Power & Oil Control. (Includes New Wing Design Oil Pump) $395
Moroso Aluminum Pro Eliminator Pan $495
Vacuum Pump Kit Includes: Moroso 3 Vane Vacuum Pump & Adjustable Relief Valve, AN Fittings, Jones Mandrel & Bracket Kit w/Radius Tooth HTD Belt. ImageShafiroff Racing Available Options Close$1395
Additional Parts - Labor - Accessories
Cometic MLS (Multi Layered Steel) Head Gaskets $125
ATI SFI Approved Super Damper Balancer (Includes Hone To Fit Labor) $245
SFI Heavy Duty Flexplate & ARP Bolt Package $150
Boninfante Severe Duty SFI Flexplate & ARP Bolt PackageImageShafiroff Racing Available Options Close$229
Boninfante SFI Billet Flexplate & ARP Bolt PackageImageShafiroff Racing Available Options Close$395
PowerMaster Hi-Torque Mini StarterImageShafiroff Racing Available Options Close$229
Meziere 55GPH Electric Water PumpImageShafiroff Racing Available Options Close$575