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One of the most important steps of your swap is to identify the "spacing" needed. This "spacing" is determined by the crank pulley that you have, or will be getting. 

Here at ICT Billet we design our brackets based off these three spacing principles. 

(-1) Corvette C7 LT1 crank pulleys are in this category. See guide below for measurements

(-2) Camaro SS LT1 crank pulleys are in this category. See guide below for measurements.

(-3) All Truck / SUV crank pulleys are in this category. See guide below for measurements. 

What this means to you? 

All of our systems function around this spacing concept to ensure the kit is a direct bolt up to your application for proper functionality.

We categorize our parts by a 6 digit part # with a (-) at the end. Depending on which application the bracket was designed for would determine the last digit.

A noticeable visible difference between the two are the amount of holes there are in the face of the pulley, the Corvette LT1 has many holes, the Camaro LT1 has only 2 holes, and the Truck/SUV pulley has no holes. 

Please Contact Us if you have any questions