509 W Series Big Block Chevy HHR Pump Gas Engine
Pump Gas

509 W Series Big Block Chevy HHR Pump Gas Engine $29,750

509/625HP $29,750
Includes Carbs & Ignition

You've Been Dreaming About It. You've Waited For It. Now It's Finally Here! This Is Probably The Coolest Engine We've Built In The Last 10 Years And Is Guaranteed To Put More Smiles Per Mile Than Anything Else On The Planet!

If You're A 409 Buff ... This Bud's For You!

  • Horsepower
  • Torque
  • Bore & Stroke
  • Compression Ratio
  • Fuel Requirement
  • 625 @ 5600 RPM
  • 638 @ 4500 RPM
  • 4.370 x 4.250
  • 10.75 to 1
  • 92/93 Octane

  • World/BMP 409 Aluminum Block w/Steel Billet Caps
  • Scat 4340 4.250" Stroke Steel Crank
  • Scat 4340 6.385" H-Beam Steel Rods
  • Clevite 77 "H" Series Main & Rod Bearings
  • Custom 10.75-1 Aluminum Pistons w/Coated Skirts
  • Total Seal Plasma Moly Ring Set
  • 2nd Design Comp "Round Lobe" Billet Hydraulic Roller Cam (1)
  • Special 7/4 Swapped Firing Order
  • Hi-Rev Pro Series Hydraulic Roller Lifters
  • Rollmaster Billet Timing Set w/IWIS Chain & Torrington Bearing
  • Edelbrock 409 Alum. Heads w/SSRE Proprietary CNC Porting
  • Manley Custom Stainless 2.250/1.750 Valves
  • Isky "Enduro Design" 1.530" Premium Roller Springs
  • Custom Manley 10° Steel Retainers and Locks
  • ARP Custom Aluminum Block Design Head Stud Kit
  • Comp Cams 1.7 Ultra Pro Magnum Roller Rockers
  • Chromemoly (1) Piece .080" Wall 3/8" OD Pushrods
  • Cometic MLS (Multi Layer Steel) Head Gaskets
  • Edelbrock Large Port Intake w/SSRE Port Matching
  • SSRE/Moroso Custom Stroker Oil Pan w/Windage Tray
  • Moroso Race Prepped Oil Pump w/Tig Welded HD Pickup
  • Polished Aluminum Front Cover w/Billet Timing Pointer
  • Hi-Performance Degreed Harmonic Balancer
  • GM® Cast Aluminum Valve Covers w/Polished Fins
  • Edelbrock Vintage Finish 600 CFM Dual Carbs w/Electric Choke
  • Edelbrock Progressive Throttle Linkage
  • MSD Ready To Run Billet Distributor w/Custom Machining
  • Moroso Custom Wires w/Looms
  • Complete Assembly Internally Balanced
  • Individually Dyno Tested & Tuned w/Actual Dyno Sheet
  • Footnotes:
  • (1) Composite Fuel Pump Rod Required with our custom camshafts.
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!
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
Additional Parts - Labor - Accessories
Custom Polished Finned Edelbrock Aluminum Dual Quad Air Cleaner Assembly Complete $275
Custom Polished Edelbrock Aluminum Water Pump w/SSRE Custom Spacer Plates and Stainless Steel Hardware $335
Lokar Custom Locking & Calibrated Dipstick (Upgrade)Image Close$95
Master Power Silent Drive Vacuum Pump Kit For Power BrakesImage Close$589