434 Small Block Chevy Ultrastreet Pump Gas Engine
Pump Gas Engines

434 Small Block Chevy Ultrastreet Pump Gas Engine $14,195

434 Small Block Chevy Ultrastreet Pump Gas Engine
434/595HP $14,195
Less Carb & Ignition

This Small Block Engine Provides Both The Power And The Sound That Screams "Hot Rod". Utilizing A Mild "Street Roller" Cam Profile And A 10.5 Compression Ratio, It Delivers The Tire Melting Power You Want And The Cruising Reliability You Need In A Pump Gas Friendly Package.

  • Horsepower
  • Torque
  • Bore & Stroke
  • Compression Ratio
  • Fuel Requirement
  • 595 @ 6300 RPM
  • 565 @ 4500 RPM
  • 4.155 x 4.000
  • 10.5 to 1
  • 92 Octane

  • Dart Little "M" Block w/Splayed 4 Bolt Main Caps
  • SSRE/Scat 4340 4.000" Stroke Steel Crank (1)
  • Scat 4340 6.000" H-Beam Steel Rods
  • Clevite 77 "H" Series Main & Rod Bearings
  • Custom 10.5-1 Forged Aluminum Pistons
  • Plasma Moly Ring Set
  • SSRE/Comp Cams Custom "Street Roller" Camshaft (2)
  • Comp Cams Solid Roller Lifters
  • Cloyes Billet True Roller Timing Set w/Torrington Bearing
  • AFR Eliminator Fully CNC Ported Aluminum Heads
  • 1.500" Roller Springs w/Steel Retainers
  • ARP High Performance Head Bolts
  • Comp Cams 1.6 Ultra Pro Magnum Roller Rockers
  • Chromemoly (1) Piece .080" Wall Pushrods
  • FelPro HP Head Gaskets w/Pre-Flattened Steel Wire
  • Holley Strip Dominator Series 4150 Aluminum Intake
  • Moroso Street/Strip Oil Pan
  • Moroso Race Prepped Oil Pump w/Tig Welded HD Pickup
  • GM Performance Chrome Front Cover w/Billet Timing Pointer
  • Hi-Performance Harmonic Balancer
  • Complete Assembly Internally Balanced
  • Individually Dyno Tested & Tuned
  • Actual Dyno Sheet Provided
  • 2 Year Warranty
  • Footnotes:
  • (1) Precision machined in USA to our custom specifications.
  • (2) Composite Fuel Pump Rod Required with our custom camshafts.
Shafiroff Racing Engine Upgrade Packages
Holley Sniper EFI
Holley Sniper II EFI Package$2995
Includes: Holley Super Sniper EFI Unit, Sniper EFI Touchscreen LCD Programmer, Bosch LSU 4.9 Wideband Oxygen Sensor, Stainless Steel Clamp-On Oxygen Sensor Installation Kit (May Also Be Welded), Hyperspark Distributor and SSRE Custom Ignition Wires w/Looms. Base Tuneup and Parameters Set and Calibrated on Your Engine.
Igniton Components
Hyperspark Ignition Coil $39
E85 Version $295

If This Fuel Is Readily Available In Your Area, Our E85 Version Offers Much Greater HP And Torque Numbers Over Its' Gasoline Equivalent. E85 Fuel's Ability To Operate Without Detonation Under Much Higher Cylinder Pressure Allows Us To Significantly Raise The Compression Ratio And Slightly Alter Cam Timing To Produce These Dramatic Improvements. You Must Run An E85 Specific Carb Or Program Your Aftermarket Fuel Injection To Work With This Engine.

"HHR" Hot Hydraulic Roller $695

For Those That Want Virually All The Power Of "The Classic" Without The Hassle Of Ever Having To Adjust Valves, The HHR Is For You! We Use Special "Proprietary Grinds" On Our Custom Hot Hydraulic Roller Cam Along With "Ultra Hi-Rev" Hydraulic Roller Lifters And Premium Alloy Valve Springs To Maintain Race Engine Performance With Hydraulic Roller Convenience.

  • Comp Cams/SSRE Custom Hydraulic Roller Cam
  • Comp Cams Hi-Rev Hydraulic Roller Lifters
  • Isky "Enduro Design" Premium Valve Spring Package
  • Horsepower
  • Torque
  • Compression Ratio
  • Fuel Requirement
  • 585 @ 6000 RPM
  • 565 @ 4500 RPM
  • 10.5 to 1
  • 92 Octane

NOTE: T&D Shaft Rockers Not Available With This Version

"SS" Saturday Night Special $1,995

The "Saturday Night Special" Package Is Designed For The Hot Rodder That Puts Performance Above All Else. It Combines "Limited" Streetability With "Race Engine" Performance In A Pump Gas Version! This Is The "Bad Boy" Of The Bunch! Putting Out Well Over 600HP, This Monster Requires Competition Drive Train, Chassis And Exhaust Mods To Deliver Its Maximum Potential. With Its More Aggressive Camshaft Provirtual And Slightly Higher Compression Ratio It Requires A Minimum Of 93 Octane Gas ... But That's A Small Price To Pay For The Incredible Performance That This Package Delivers!!

  • AFR 235 Eliminator Fully CNC Ported Aluminum Heads
  • Wiseco Custom Forged Aluminum Pistons
  • Pro Series 1.6 Aluminum Roller Rockers
  • ARP Competition Head Stud Kit
  • Comp Cams Custom Ground Steel Billet Solid Roller Cam
  • Stage I Motown Dominator Intake
  • Horsepower
  • Torque
  • Compression Ratio
  • Fuel Requirement
  • 640 @ 6200 RPM
  • 595 @ 4600 RPM
  • 10.75 to 1
  • 93 Octane


Nitrous Package $950

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 $125
●  Molnar Severe Duty 4340 H-Beam Rods w/ARP 2000 Asymmetrical Bolts $400
●  Calico Coated Bearing Package $175
●  Total Seal TNT "Hellfire" Rings $175
●  Cometic MLS (Multi Layered Steel) Head Gaskets $125

Total Package Value = $1000 - Save $50!

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 850 CFM 4150 Series Carb Package includes: 2 Circuit Billet Carb, Phenolic Spacer, Aluminum AN Fuel Fittings, Studs & Gaskets. Dyno Tuned, Jetted and Calibrated on your engine.ImageShafiroff Racing Available Options Close$995
APD 950 CFM 4150 Series Carb Package includes: 2 Circuit Billet Carb, Phenolic Spacer, Aluminum AN Fuel Fittings, Studs & Gaskets. Dyno Tuned, Jetted and Calibrated on your engine.ImageShafiroff Racing Available Options Close$995
APD 1050 CFM 4500 Series Carb Package includes: 2 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
Mechanical Fuel Pump Package Includes: High Volume Race Design 6 Valve Pump, Composite Fuel Pump Rod (Required For Our Custom Cams), Braided Fuel Line Inlet Kit w/8AN Lines and Fittings. Plumbed, Installed & Dyno Tested On Your Engine. $475
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. $595
MSD 6AL Digital Electronic Ignition Box w/Hi-Speed Rev Limiter $305
MSD 6AL-2 Digital Electronic Ignition Box w/Launch Control & Hi-Speed Rev Limiter $480
MSD Blaster 3 Hi Performance Ignition Coil w/HEI Style Post $65
MSD 8201 Pro Power Coil $159
Composite Distributor Gear (if required)ImageShafiroff Racing Available Options Close$125
Blocks
Brodix Aluminum Block w/Steel Billet Caps, Special Head Stud Kit & Additional Machining (Slightly Less Peak HP) $4500
HIP® Process (Hot Isostatic Pressing) For Increased Durability With Aluminum Blocks $675
Crankshafts
Manley 4340 Non-Twist Forged & Nitrided Crank $125
Connecting Rods
ARP 2000 Rod Bolts $125
Manley H-Beam 4340 Steel Rods w/ARP 2000 Bolts $300
Molnar Severe Duty 4340 H-Beam Rods w/ARP 2000 Asymmetrical Bolts $400
Pistons - Pins - Rings - Bearings
Severe Duty JE Pistons (Suitable For Over 250HP Nitrous) $295
Total Seal TNT "Hellfire" Rings $175
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
Valvetrain
T&D Shaft Rocker System $1695
Needle Bearing Tip Option for T&D Shaft Rockers $295
Timing
Cloyes 2 Piece Aluminum Timing CoverImageShafiroff Racing Available Options Close$175
Jesel Belt Drive (Includes Mandatory Block Machining) $1210
Oil Pumps - Oil Pans - Vacuum Pump
Lokar Custom Locking & Calibrated Dipstick (Upgrade)ImageShafiroff Racing Available Options Close$95
Milodon Kickout Style Pro Pan w/Solid Louvered Tray & Main Cap Partitions For Added Power & Oil Control. $350
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
SFI Approved Harmonic Balancer (Required At All Race Tracks) $150
ATI SFI Approved Super Damper Balancer (Includes Hone To Fit Labor) $295
Master Power Silent Drive Vacuum Pump Kit For Power BrakesImageShafiroff Racing Available Options Close$625
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
Painless Performance Hot Shot Relay Kit (Recommended for above starter) $39
Edelbrock Aluminum "High Volume" Mechanical Water Pump (Short or Long Version)ImageShafiroff Racing Available Options Close$350
Meziere 55GPH Electric Water PumpImageShafiroff Racing Available Options Close$575
Billet Specialties Tru Trac Serpentine SystemImageShafiroff Racing Available Options Close$Call
Billet Specialties V-Track Pulley SystemImageShafiroff Racing Available Options Close$Call
Custom Powder Coating Packages Available $Call