{"id":319,"date":"2023-08-25T10:07:32","date_gmt":"2023-08-25T14:07:32","guid":{"rendered":"https:\/\/gmcrateengine.com\/produits\/l8t-19433748\/"},"modified":"2026-02-05T16:56:06","modified_gmt":"2026-02-05T21:56:06","slug":"chevrolet-performance-l8t-crate-engine-19433748","status":"publish","type":"product","link":"https:\/\/gmcrateengine.com\/en\/parts\/chevrolet-performance-l8t-crate-engine-19433748\/","title":{"rendered":"Chevrolet Performance L8T Crate Engine &#8211; 19433748"},"content":{"rendered":"<p>Harness modern truck power with the Chevrolet Performance L8T Crate Engine. This 6.6L Gen-V powerplant delivers 401 horsepower and 464 lb-ft of torque through advanced architecture. The L8T features direct fuel injection, variable valve timing, and components designed for truck applications. This engine provides excellent low-end torque and modern technology. Perfect for truck builds, off-road applications, and custom vehicles requiring modern GM truck performance. The L8T represents the latest in Chevrolet truck engine technology. Factory-assembled and backed by Chevrolet Performance quality standards.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Harness modern truck power with the Chevrolet Performance L8T Crate Engine. This 6.6L Gen-V powerplant delivers 401 horsepower and 464 lb-ft of torque through advanced architecture. The L8T features direct fuel injection, variable valve timing, and components designed for truck applications. This engine provides excellent low-end torque and modern technology. Perfect for truck builds, off-road applications, and custom vehicles requiring modern GM truck performance. The L8T represents the latest in Chevrolet truck engine technology. Factory-assembled and backed by Chevrolet Performance quality standards.<\/p>\n<p>**Technical Specifications:**<\/p>\n<p>Engine type: Fifth-generation Small Block V8 with direct injection and spark ignition<br \/>\nDisplacement (cubic inches): 400 (6.6 L)<br \/>\nBore x Stroke (inches \/ mm): 4.060 x 3.860 (103.25 mm x 98 mm)<br \/>\nBlock (Part No. 19420904): Cast iron with 6-bolt nodular iron main bearing caps<br \/>\nCrankshaft (Part No. 12708884): Forged steel<br \/>\nConnecting rods (Part No. 12675746): Forged powder metal<br \/>\nPistons (Part No. 12699527-R, 12699529-L): Hypereutectic aluminum<br \/>\nCamshaft type (Part No. 12672469): Billet steel hydraulic camshaft<br \/>\nValve lift (inches): 0.500 intake \/ 0.492 exhaust<br \/>\nCamshaft duration (@0.050 inch): 193\u00b0 intake \/ 199\u00b0 exhaust<br \/>\nCylinder heads (Part No. 12703610): Aluminum with rectangular port and direct injection, 59.02 cm\u00b3 chambers<br \/>\nValve size (inches): Hollow intake 2.130 \/ Inconel exhaust 1.590<br \/>\nCompression ratio: 10.8:1 (nominal)<br \/>\nValve lifters (Part No. 12619829): Investment cast with roller trunnions<br \/>\nValve lifter ratio: 1.8:1<br \/>\nIntake manifold (Part No. 12639087): Composite<br \/>\nThrottle body (Part No. 12730580): 87 mm diameter (single piece)<br \/>\nFuel delivery: High-pressure direct injection (2,175 psi \/ 150 bar)<br \/>\nRecommended fuel: 87 octane<br \/>\nIgnition system: Coil-on-plug<br \/>\nRecommended max RPM: 5600 rpm<br \/>\nBalancer gear: 58X<br \/>\nBalanced: Internal<\/p>\n","protected":false},"featured_media":233,"template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[24,37],"product_tag":[],"class_list":["post-319","product","type-product","status-publish","has-post-thumbnail","product_cat-engines","product_cat-lt-engine","first","instock","sale","taxable","shipping-taxable","purchasable","product-type-simple"],"acf":[],"_links":{"self":[{"href":"https:\/\/gmcrateengine.com\/en\/wp-json\/wp\/v2\/product\/319","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gmcrateengine.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/gmcrateengine.com\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gmcrateengine.com\/en\/wp-json\/wp\/v2\/media\/233"}],"wp:attachment":[{"href":"https:\/\/gmcrateengine.com\/en\/wp-json\/wp\/v2\/media?parent=319"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/gmcrateengine.com\/en\/wp-json\/wp\/v2\/product_brand?post=319"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/gmcrateengine.com\/en\/wp-json\/wp\/v2\/product_cat?post=319"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/gmcrateengine.com\/en\/wp-json\/wp\/v2\/product_tag?post=319"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}