Top End Gasket Kit with 0.030in. Multi-Layer Steel MLS Head Gaskets. Fits Touring 2017-2024 & Softail 2018-2024 with 107 to 124 or 114 to 128 4.250in. Big Bore Kit. Z309-322 * Exposed element provides additional

* Exposed element provides additional air flow

0:1 Compression Ratio with 85cc Head Chamber Volume

4 interior pockets

* Fits Suzuki SV1000 2003-2007

* OEM # 37105-87A

Top End Gasket Kit with 0.030in. Multi-Layer Steel MLS Head Gaskets. Fits Touring 2017-2024 & Softail 2018-2024 with 107 to 124 or 114 to 128 4.250in. Big Bore Kit. Z309-322 * Exposed element provides additionalFitment: * Used for 107ci > 124ci upgrade or 114ci > 128ci upgrade * 4. 250" Bore * MLS 0. 030" thick Head Gaskets (thinner than OEM) * Provides an additional increase in compression. ** Remember to check your clearances. Tech Tips: * Use of these head gaskets without proper clearance checks can lead to catastrophic engine failure * Does not fit CVO Touring Models 2023up or Street Glide & Road Glide 2024up