Features & Benefits:-
* Fits Sportster 1986up including Sportster 2004up.
* Includes Black Cylinders.
* Includes Flat Top Pistons.
* Includes Head Gaskets.
* 10.3:1 Compression Ratio with OEM 1200cc or S&S CNC Ported Heads
* No rebalancing required.
* Largest bolt-on kit available.
* Will Not Fit with stock 883cc Heads.
* For the best performance CNC head porting, performance cams, exhaust & intake upgrades are recommended.