Hardcore Horsepower's "Blown Street Ultra" 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 polished 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. 142, 177, 256, 6-71, 8-71, 10-71, etc.
We even build street and race nitrous engines too. This engine runs on 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 Blown Street Ultra engine is designed to be daily-driver capable on pump gas and then raced or cruised all weekend without any hassles. Everything inside The Blown Street Ultra is built using the highest quality components giving it the utmost in durability and continued power potential for years of driving enjoyment.
On the outside it looks as good as it runs (actual engines shown - custom block colors available). If youre looking for the ultimate small-block crate engine The Blown Street Ultra is the one for you.
Ask to see a video of the latest dyno test!! Special features of Hardcore Horsepower The Blown Street Ultra.All parts are BRAND NEW. NOTHING REMANUFACTURED IN THIS ENGINE! Smaller, lighter, and more powerful than most big-block crate motors! Street, off-road, marine, race, or show!
This engine fits'em all! Runs on 91/93-octane unleaded pump gas. Show and race quality build/finish.
Accepts standard-flange 1-3/4 or larger diameter headers. Be the first on your block to see how fast we can make you go! Blown Street Ultra's Specs. All products listed are subject to availability and may be changed without notice.
(smaller/larger cid versions also available, prices will vary). Compression ratio: 8.75:1 (approx).Block: Dart cast iron block w/ splayed 4-bolt mains and ARP fasteners, stroker-clearanced. Cam: Custom Blower Hydraulic, Degreed. Carburetors: Twin Holley double-pumpers side-mounted, supercharger-calibrated, no chokes. Carb Linkage: Weiand dual side-mount. Carb Fuel Lines: Stainless steel 3/8 or -6AN. Chain: USA-made true double roller timing chain. Forged-4340 Steel H-beam, 6.0 w/ ARP capscrews. Crank: Forged-4340 Steel, double-keyed crank snout. Cylinder Heads: Dart Pro 1 aluminum. Fully programmed advance curve w/ MAP sensor and boost retard built-in No. Pistons: Custom forged 2618-aluminum blower pistons. Rings: Moly, File-fit, "Blower" rings. Rockers: Full roller aluminum 1.6:1. Supercharger: Weiand 6-71 w/ 8mm drive; polished. Timing cover: Polished alum w/ stainless steel bolts. Timing pointer: Billet aluminum; custom-degreed.
Engines will take approximately 4-12+ weeks to build. All Deposits and Layaway payments are non-refundable. This engine will include all parts listed above, except where noted.
Some products shown in photos may not be included. Any/all products may be changed without notice.
All products used in Hardcore Horsepower engines are protected against defects in workmanship and materials by their original manufacturers warranties. Engines used for any type of racing are not covered by any warranties. Feel free to call for more info or to customize your kit accordingly. Photos shown are representational only. We Make It Go Fast!!
To the State of California to cause. Cancer, birth defects or other. California Health and Safety Code Section 25249.6. The item "421ci Small Block Chevy Pro-Street Engine Blown 650hp+ Built-To-Order Dyno Tuned" is in sale since Saturday, January 12, 2013.This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Engines & Components\Complete Engines". The seller is "mikepetraliashardcorehorsepower" and is located in Franklin, Tennessee. This item can be shipped worldwide.