![]() Bowtie Phase III 64cc Angle plug 184 cc intake runner. SB2.2 head 48 54 CC angle plug 284 CC intake runner Bare heads. NOTE: You can find engine specs and detailed engine upgrade advice for every LS and LS-based Vortec truck engine in one place: The Definitive Guide to LS Engine Specs and LS Engine Upgrades. Gen III LS1 'GTZ' aluminum 38cc angle plug. 4 LS Truck Engines (Vortec) 8th Digit of VIN 3 LS Truck Engines (Vortec) 8th Digit of VIN Consult the tables below to identify your engine.You can determine the RPO code if you have the VIN from the original vehicle. How to ID an LS Engine by VINĬhevrolet’s LS and LS-based Gen III and Gen IV small-block engines are generally known by their RPO code. If the engine you are looking at has been modified, the guide may not give you the right answer. Please note that this guide is intended for stock engines. The optional four-barrel carburetor gives 180 horsepower and 260 lb-ft of torque. It produces 162 horsepower and 257 lb-ft in the base model. The 265 Turbo came with a 3.75-inch bore and 3.00-inch stroke. Just answer a few basic questions and the tool will be able to tell you what LS engine you have (or at least really narrow down your options). Chevy 327 Engine Identification, Best Small Blocks: 1. For example, the engine code stamping number on a Chevy 327 engine might read V0404HC: V stands for the Flint, Michigan plant. The LS experts at Summit Racing created an interactive tool to help you easily make a positive ID by answering a few questions. This code contains important information about the engine, such as the plant where it was produced and the date of production. ![]() If you don’t have the VIN, you can still identify the engine by visual inspection if you know what to look for. The casting number is found on the drivers side of the block at the back of the engine. The easiest way to tell the difference is to check the 8th digit of the Vehicle Identification Number (VIN) on the original vehicle. To ensure you’re using the the right parts, you need to know which LS engine you’re starting with. The similarities between them make several LS parts interchangeable, but there are critical differences too. There are more than 40 variations, including the LS-based Vortec truck engines.
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