{"id":8682,"date":"2026-06-24T17:33:01","date_gmt":"2026-06-24T17:33:01","guid":{"rendered":"https:\/\/elevemotors.com\/product\/atk-engines-hp94-small-block-chevy-383-stroker-base-engine-415hp\/"},"modified":"2026-06-24T19:08:32","modified_gmt":"2026-06-24T19:08:32","slug":"atk-engines-hp94-small-block-chevy-383-stroker-base-engine-415hp","status":"publish","type":"product","link":"https:\/\/elevemotors.com\/fr\/produit\/atk-engines-hp94-small-block-chevy-383-stroker-base-engine-415hp\/","title":{"rendered":"ATK Engines HP94 Small Block Chevy 383 Stroker Base Engine, 415HP"},"content":{"rendered":"<p>The ATK HP94 Chevy 383 stroker base engine is a strong street-performance small block built to deliver 415 horsepower and 460 ft.-lbs. of torque with a proven combination of aftermarket internals and aluminum heads. Featuring a 4-bolt OE roller block, Scat crank and rods, hypereutectic pistons, a hydraulic roller cam, and ATK high-performance aluminum heads, this 383 is designed for reliable power, crisp throttle response, and solid street manners with the flexibility to complete the build with your preferred induction and accessories. Engine Specifications:\u2022 HP: 415\u2022 TQ: 460\u2022 Block: OE roller block 4 bolt main 1pc seal 1996-2000\u2022 Bore\/Stroke: 4.040\u201d x 3.750\u201d\u2022 Displacement: 383CI\u2022 Crankshaft: Scat Nodular Iron external balance rear of crank\/internal balance front of the crank\u2022 Rods: Scat I Beam 5.7\u201d Rods with ARP 8740 Bolts\u2022 Pistons: Hypereutectic 9.7:1 Compression\u2022 Rings: Moly\u2022 Camshaft: Hyd. Roller\u2022 Cam Specs: 220\/224 @50 .528in\/.536ex 110LSA\u2022 Timing Chain: Double Roller\u2022 Cylinder Heads: ATK High Performance aluminum with 2.020 in. \/1.600 ex. valves\u2022 Rocker Arms: Billet aluminum roller rockers 1.6 ratio\u2022 Oil Pan: Rear sump 5qt (not for Chevelles with steering behind crossmember, some corvettes and 62-67 chevy II\u2019s)\u2022 Oil Pump: Melling STD Volume\u2022 Flexplate\/Flywheel: Externally Balanced \u2013 Pioneer #FRA-159 (with Scat kit) Recommended Components:\u2022 Balancer: Internally Balanced \u2013 PowerBond #PB1046-N\u2022 Intake Manifold: ATK dual plane intake\u2022 Carburetor: Quick Fuel 680CFM Vacuum secondary\u2019s electric choke #HR-680\u2022 Fuel Pump: Holley mechanical 110GPH #12-327-11\u2022 Distributor: HEI (Iron Gear)\u2022 Spark Plugs: Autolite #3923\u2022 Spark Plug Wires: 8mm\u2022 Water Pump: OE long pump Engine Info:\u2022 Oil: Conventional \/ Non Synthetic 10W30\u2022 Oil Filter: Wix or K&amp;N\u2022 Timing: 34-36 Degrees\u2022 Spark Plug Gap: .035\u201d\u2022 Firing Order: 18436572\u2022 Octane: 91+\u2022 Stall Converter: 2200-2800\u2022 Exhaust: 1 5\/8+ Headers Disclaimer: The parts listed are ATK\u2019s recommendations of parts to be used to obtain our power figures listed. Power figures can vary based on parts used by the end user. It is the customer\u2019s responsibility to verify components will work in their application. Some modifications to the vehicle may be required using these and or other aftermarket parts. ATK reserves the right to substitute parts used in engines if necessary. These engines are year and model specific. All cores must be returned to ATK as they will provide the bill of lading and schedule the pickup once contacted. Do NOT return cores to Speedway Motors. Please refer to the link under the Installation Details or click here for more information.<\/p>\n<h3>Highlights<\/h3>\n<ul>\n<li>HP: 415<\/li>\n<li>TQ: 460<\/li>\n<li>Block: OE roller block 4 bolt main 1pc seal 1996-2000<\/li>\n<li>Bore\/Stroke: 4.040\u201d x 3.750\u201d<\/li>\n<li>Displacement: 383CI<\/li>\n<\/ul>\n<h3>Specifications<\/h3>\n<ul>\n<li><strong>Crate Engine Type:<\/strong> Long Block<\/li>\n<li><strong>Engine Displacement:<\/strong> 383 cu. in.<\/li>\n<li><strong>Horsepower:<\/strong> 415 horsepower<\/li>\n<li><strong>Compression Ratio:<\/strong> 9.7:1<\/li>\n<li><strong>Torque:<\/strong> 460 ft.\/lbs.<\/li>\n<li><strong>Camshaft Type:<\/strong> Hydraulic Roller<\/li>\n<li><strong>Cylinder Head Material:<\/strong> Aluminum<\/li>\n<li><strong>Piston Material:<\/strong> Hypereutectic Aluminum<\/li>\n<li><strong>Camshaft Duration (.050 in):<\/strong> 220\u00b0 intake \/ 224 \u00b0 exhaust<\/li>\n<li><strong>Camshaft Lift (in):<\/strong> .528 intake \/ .536 exhaust<\/li>\n<li><strong>Bore x Stroke (in):<\/strong> 4.040&quot; x 3.750&quot;<\/li>\n<li><strong>Carburetor Included:<\/strong> No<\/li>\n<li><strong>Intake Manifold Included:<\/strong> No<\/li>\n<li><strong>Distributor Included:<\/strong> No<\/li>\n<li><strong>Valve Covers Included:<\/strong> Yes<\/li>\n<li><strong>Engine Balance:<\/strong> External<\/li>\n<li><strong>Cylinder Heads Included:<\/strong> Yes<\/li>\n<li><strong>Rear Main Seal Style:<\/strong> 1-piece<\/li>\n<li><strong>Throttle Body Included:<\/strong> No<\/li>\n<li><strong>Oil Pan Included:<\/strong> Yes<\/li>\n<li><strong>Timing Cover Included:<\/strong> Yes<\/li>\n<li><strong>Water Pump Included:<\/strong> No<\/li>\n<li><strong>Harmonic Balancer Included:<\/strong> No<\/li>\n<li><strong>Flexplate Included:<\/strong> No<\/li>\n<li><strong>Flywheel Included:<\/strong> No<\/li>\n<li><strong>Air Cleaner Included:<\/strong> No<\/li>\n<li><strong>Spark Plugs Included:<\/strong> No<\/li>\n<li><strong>Spark Plug Wires Included:<\/strong> No<\/li>\n<li><strong>Computer Included:<\/strong> No<\/li>\n<li><strong>Wiring Harness Included:<\/strong> No<\/li>\n<li><strong>MFG. Part #:<\/strong> HP94<\/li>\n<li><strong>Sold in Quantity:<\/strong> Each<\/li>\n<li><strong>Accessory Bolt Holes Drilled:<\/strong> No<\/li>\n<li><strong>Recommended Fuel:<\/strong> 91 Octane<\/li>\n<li><strong>Spark Plug Style:<\/strong> Stock<\/li>\n<li><strong>Brand:<\/strong> ATK Engines<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>HP: 415 | TQ: 460 | Block: OE roller block 4 bolt main 1pc seal 1996-2000 | Bore\/Stroke: 4.040\u201d x 3.750\u201d | Displacement: 383CI<\/p>","protected":false},"featured_media":8549,"comment_status":"closed","ping_status":"open","template":"","meta":{"_joinchat":[]},"product_brand":[],"product_cat":[356],"product_tag":[],"class_list":["post-8682","product","type-product","status-publish","has-post-thumbnail","product_cat-crate-engines","first","instock","purchasable","product-type-simple"],"exclude_global_add_ons":[],"addons":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - 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