For those asking for the different sizes...
In big twins the 88 represents the displacement of the standard engine in cubic inches or commonly rounded up to 1450 cc.
The MOCO released a 95 cubic inch upgrade kit to increase the displacement to 1,550 cc.
The Twin Cam 96 is approximately 1,584 cc.
The MOCO has released 103-cubic-inch (1,688 cc) and 110-cubic-inch (1,803 cc) kits for the TC96.
The Evo is the 1340 engine.
In big twins the 88 represents the displacement of the standard engine in cubic inches or commonly rounded up to 1450 cc.
The MOCO released a 95 cubic inch upgrade kit to increase the displacement to 1,550 cc.
The Twin Cam 96 is approximately 1,584 cc.
The MOCO has released 103-cubic-inch (1,688 cc) and 110-cubic-inch (1,803 cc) kits for the TC96.
The Evo is the 1340 engine.