Can a Harley 883 be bored out to 1200?
The absolute best bang for the buck is an 883 bored out to 1200 and sporting a set of ported heads. This conversion will yield more horsepower per dollar than anything else that can be done to any other Harley-Davidson. We use the same sized valves as used in the 1200 heads. A 1.715″ intake and a 1.480″ exhaust valve.
Why does an 883 head make so much power?
With the port work done, these heads flow much more than a stock set of 1200 heads BUT that isn’t the only reason why they make so much power. A healthy boost in compression is gained by squeezing that 1200cc motor into the small 883 combustion chambers. We are able to get 10.5:1 with this combination.
How much torque does a road King head have?
The Road King ‘s head bolts 1st step is 11.67 foot lbs of torque and the second step is 17 foot lbs of torque. The 3rd step is 90 degrees or a ¼ inch. The rocker housing bolts have 14 foot pounds of torque and the rocker cover bolts have 18 foot pounds of torque. The rocker arm support plate bolts have 22 foot pounds of torque.
Can you use an 883 head on a 1200 Sportster?
We use the 883 heads on all 1200 Sportsters 1) HVP-XL Your heads completely reworked, ready to bolt back on. We usually advise Sportster owners to use stock cams because they are quiet and run well.
How much torque does a Harley Davidson cylinder head have?
Technical information on the installation of cylinder heads for Harley-Davidson motorcycles. For each cylinder head, start with head bolt numbered one. In increasing number sequence (1-2-3-4), tighten the head bolt in three stages. 1. Tighten each bolt to 7-9 foot pounds of torque. 2, Tighten each bolt to 12-14 foot pounds of torque. 3.
The Road King ‘s head bolts 1st step is 11.67 foot lbs of torque and the second step is 17 foot lbs of torque. The 3rd step is 90 degrees or a ¼ inch. The rocker housing bolts have 14 foot pounds of torque and the rocker cover bolts have 18 foot pounds of torque. The rocker arm support plate bolts have 22 foot pounds of torque.
How to calculate the torque of a cylinder head?
Torque Wrench Method. For each cylinder head, start with head bolt numbered one. In increasing number sequence (1-2-3-4), tighten the head bolt in four stages. 1. Tighten each bolt to 7-9 foot pounds of torque. 2. Tighten each bolt to 12-15 foot pounds of torque. 3, Tighten each bolt to 22-25 foot pounds of torque.
Can you upgrade an 883 Sportster to a 1200?
Although you can upgrade an 883 to match the 1200 Sportster, it involves a lot of work and the end result greatly depends on the work quality of the one who did the work. Needless to say, it also voids any warranty you have with your Sportster. The emblems are the only telling difference between the 883 Sportster and the 1200 Sportster