When did the XL1200 head become the best?
That’s because between the 2003 and 2004 model years, XL1200 heads went from being the worst to the best heads available for a performance application. So you have to take a whole different approach depending on which generation of 1200 you have.
How big does a se pushrod need to be?
Using the SE adjustable pushrods, (32 tpi) you would need to turn the adjusters 4.6 turns out to achieve the .145″ that you’re recommending. SE instructions say to turn the adjuster 2.5 turns out.
What makes Screamin Eagle pushrods tapered and adjustable?
The one-piece chrome moly tube adds rigidity and durability, and the threaded adjustment feature provides easy cam installation without removing the cylinder heads or rocker boxes. These premium pushrods are tapered for enhanced clearance at the cylinder head, allowing the use of higher lift cams.
What’s the difference between 88-90 and 91-03 1200 heads?
There are no significant differences between an 88-90 and a 91-03 1200 head other than the pushrod hole locations and the crankcase breather provisions as described above. This is one of the most common Sportster heads you’ll come across, as it came on every 1200 Sportster from 1991 through 2003, except the 98-03 XL1200S model.
That’s because between the 2003 and 2004 model years, XL1200 heads went from being the worst to the best heads available for a performance application. So you have to take a whole different approach depending on which generation of 1200 you have.
How do you adjust the pushrod on a Harley Davidson?
Turn your motor, by hand, and position the lifter you are adjusting to its lowest point of travel on the cam. Next, extend your adjustable pushrod until you have zero lash (adjust by hand until you pushrod is seated, but without collapsing the lifter).
The one-piece chrome moly tube adds rigidity and durability, and the threaded adjustment feature provides easy cam installation without removing the cylinder heads or rocker boxes. These premium pushrods are tapered for enhanced clearance at the cylinder head, allowing the use of higher lift cams.
Is the Lightning head the same as the XL1200?
The Lightning head has the same ports and valve sizes as the XL1200 heads of the same vintage and as such they flow exactly the same. The Screamin Eagle catalog at one time claimed 8% more flow but I’ve flow tested lots of them and the range of results I get is the same as the standard 88-03 XL1200 heads.