Hardcore Horsepower's "Blown Budget Street" series of engines are extremely-powerful, dyno-proven, daily-drivable street/race/off-road/marine engines capable of producing high power on pump gas while looking and sounding ultra cool!

These one-of-a-kind engines are professionally-built and dyno-proven small-block Chevy V8's running Weiand superchargers, with twin Holley supercharger-calibrated carbs on top.

We also build, test, and tune turbo and centrifugal supercharged engines too, plus other engines running all size roots blowers (i.e. 142, 177, 256, 6-71, 8-71, 10-71, etc.). We even build street and race nitrous engines too. See our ebay store for more details on other types of engines we build.

This engine runs on E85 pump gas, but we also offer various boost and power levels for all types of vehicles running all types of fuel. Plus, we include a detailed build sheet and dyno results showing horsepower and torque with all engines we sell.

This engine is designed to be daily-driver capable on pump gas and then cruised all weekend without any hassles. It is built for durability and continued power potential for years of driving enjoyment. On the outside it looks as good as it runs (custom block colors available). If you’re looking for the ultimate small-block crate engine this is the one for you.

Ask to see a video of the latest dyno test of one these engines!!!

Special features of Hardcore Horsepower's Blown Budget Street engines:

• 628hp PEAK @ 6,200rpm (7.6psi boost)

• 612tq PEAK @ 3,900rpm

• 600tq+ from 3,500 to 4,300rpm

• All parts are BRAND NEW. NOTHING REMAN IN THIS ENGINE (Block Excluded)

• Smaller, lighter, and more powerful than most big-block crate motors!

• Street, off-road, marine, race, or show! This engine fits 'em all!

• RPM range: Idle-6,000+

• Runs on E85 pump gas

• Show and race quality build/finish

• Accepts standard-flange headers

• Be the first on your block to see how fast we can make you go!

Blown Budget E85 Street 383 Specs-

All products listed below are included w/ purchase of this engine only; unless noted otherwise. All products listed are subject to availability and may be changed without notice.

  • Bore: 4.030" 
  • Stroke: 3.750"
  • CID: 383" (smaller/larger cid versions also available, prices will vary)
  • Compression ratio: 9.2:1 (approx.)
  • Bearings: King Racing
  • Block: Fully Blueprinted GM cast iron block w/ 4-bolt mains and ARP fasteners, stoker-clearanced, dipstick hole on RH side (LH dipstick available for slightly more $$$), 1-pc RMS, painted your choice of color
  • Cam: Custom-ground hydraulic roller tappet street blower grind, aggressive idle, fully degreed (roller cam upgrade available for extra $$$)
  • Carburetor: Holley E85 double-pumper, supercharger-calibrated
  • Cam Drive: True double roller chain
  • Connecting Rods: Eagle 4340-Forged Steel, 6.0" floating pin, w/ ARP capscrews
  • Crankshaft: Scat or Eagle Cast Steel, 3.75" stroke, 1-pc RMS, Internally-balanced, Knife-Edged counterweights
  • Cylinder Heads: Dart SHP aluminum, straight plugs, 190kpsi head bolts, MLS steel head gaskets (angle plug heads also available for extra $$$)
  • Dampener: SFI-approved w/ degree markings
  • Distributor: MSD billet aluminum, timed during dyno testing
  • Flexplate/Flywheel: (not included, available for extra $$$)
  • Fuel Pump: Hi-Volume electric recommended, (Hi-volume mechanical pump installed and fully plumbed as shown is not included, available for extra $$$)
  • Gaskets: Fel-Pro and/or Mr. Gasket (MLS head gaskets)
  • Oil system: Milodon 6-qt. steel stroker pan w/ dipstick on RH side (USA passenger side), coated; Melling oil pump + welded pickup, H.D. oil pump driveshaft and ARP oil pump stud
  • *Note: Engine will be broken-in and dyno tested using proper break-in oil. Engine will be drained and shipped dry to your location with a new oil filter installed.
  • Pistons: Custom forged-aluminum dish blower pistons, coated skirts
  • Pushrods: Chrome-moly steel, hardened
  • Rings: File-fit, "Moly" rings
  • Rockers: Full roller aluminum
  • Spark Plugs: Pre-gapped and dyno-tuned (custom-fitted spark plug wires + looms are not included, available for extra $$$)
  • Supercharger: Weiand "Pro-Street" 177ci w/ 10-rib drive; Polished finish (satin finish, not shown, also available)
  • Timing pointer: Degreed-in
  • Valves: 2.02/1.60 1-pc Stainless Steel
  • Valve covers: Polished aluminum w/ ball-milled lines standard (shown) (other covers available, prices may vary)
  • Water Pump, Alternator, P/S, A/C, pulleys, belts, brackets, etc ARE NOT INCLUDED: (Billet Specialties complete accessory kit is available fully installed for extra $$$)

Weight: Engine 500-lbs. (as listed above); Shipping Wt. approx. 650-lbs.

If item is picked up, or shipped within the state of TN, must add 9.25% sales tax.

No-interest 12-month Layaway plan available on all items priced $5,000-up.

Terms: Minimum deposit: 20% of total item cost, due at close of sale. The remaining balance due will be divided into 11 equal payments due each month thereafter until balance is paid in full. Item will be built and/or ordered and/or shipped only after paid in full.

Engines may take approximately 6-12+ weeks to build.

All Deposits and Layaway payments are non-refundable.

See Hardcore Horsepower store for warranty details.

All items are subject to availability and may be substituted without notice.

Photos shown are representational only. Actual item may differ.

Hardcore Horsepower, LLC
Franklin, TN
615/595-0060
10am-6pm Monday thru Friday
USA Central Time

We Make It Go Fast!!!

WARNING Some products may contain chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. California Health and Safety Code Section 25249.6