2011 Street Glide 96ci
Upgrades that I've already done:
Woods 777 Cam, SE Adjustable Pushrods, Heavy Duty Springs, SE Heavy Breather Kit, SE Super Tuner, D&D Fat Cat 2 into 1 exhaust and an Energy One Clutch.

I purchased some Screamin Eagle heads with the Casting Numbers: 16927-08, 16928-08 on them with compression releases. My question is, "by installing these heads, will I get any more performance than I am presently getting out of my stock heads"?

If not, any suggestions for the heads, so that they can be used?

Thanks

 

Just by looking at the casting numbers all that I can tell you is they were manufactured in 2008 for a 96" motor. It would be useful if you could come up with the part # to tell which heads they actually are.

 

OldEnuf2NoBtr...
Let me guess, the part number won't be located on the heads anywhere?

 

I believe these are what op has

SCREAMIN’ EAGLE® PRO TWIN CAM MCR
PERFORMANCE CYLINDER HEADS-16953-08
We’ve combined the proven Screamin’ Eagle valve train
components and innovative port shapes from our Evolution®
1340 cylinder heads with the Twin Cam engine “bathtub”
combustion chamber with a volume of 76cc’s to create a
cylinder head that really performs. Valve spring can accommodate
up to .575" valve lift camshaft kits and up to 6500
RPM. Heads are machined to accept Mechanical Compression
Release P/N 32076-04.

 

The intake seats will take a much larger valve than they come equipped with, and they respond VERY well to that, if that is the head I suspect.
Scott

 

if your heads are stock,yes the SE heads will perform better,like scott said,alot better with some work

 

Thanks all for sharing! I have since dropped the heads off for some work to be done. I will update you'll with the progress.

 

We ported 2 sets of those in the past 3 weeks.
Scott

 

If it is they will be stamped in. It is common practice, not only by H-D, to identify a bare unfinished casting with it's own part number, but it can then be machined (and finished in different colours etc) to several or even many final part numbers. If you know what model and year bike they came off we may be able to narrow things down.