Forged Piston Set +0.040 4-3/4 inch Stroker Big Twin (36-84) Harley

[S&S Cycle 106-5777 Forged Piston Set +0.040 4-3/4 Inch Stroker Big Twin (36-84) Harley Engine Parts Proto]
■Product Description: The 3-7/16" +0.040" bore standard compression stroker pistons are components of S&S Genuine Bore Stroker Kits for 1936-84 HD Big Twins and are designed to be used with S&S stroker flywheels. The following stroker flywheels are available: 4-1/2" stroke 84CI with 8.4:1 compression, 4-5/8" stroke 86CI with 9.4:1 compression, and 4-3/4" stroke 88CI with 10.8:1 compression. ■Compatible Models: Harley-Davidson Big Twin (36-84) ■Specifications: Material: Forged alloy. Included accessories: Piston pins, piston rings. ■Notes: *Images are for illustration purposes only. They may include products of different sizes or colors. Product design and specifications are subject to change without notice. Thank you for your understanding.