That would be nice for what Im looking for. Can anyone verify the cc of these pistons. The drag part number I was looking at is 0903-0787

 

A 5cc dome will boost corrected CR to about 9.5 and CCR to 200psi; a little OTT for my taste but you could temper that by shaving the dome to bring corrected down to about 9.3 and CCR down to about 190psi.

You will have to mock up the piston/head and measure the effective chamber volume; Paton dome volume often varies from manufacturing specs.

 

I don't understand why people throw out "drag" p/n's are (Isn't that from a company called Drag Specialties that only dealers can buy from?) Anyway, as just a private individual, I go by the OEM p/n. Here is the info off the Wiseco website. I plan on using these same pistons myself:

4997PS $174.97 3.875in .125in
Compression Ratio - Actual: 10.5:1
Displacement: 1691cc
Dome Type: Domed
Dome Volume: +5cc
Engine Type: 103ci
Skirt Coating: ArmorGlide
Stroke: 4.375in
Valve Pocket Depth - Exhaust: -.205in
Valve Pocket Depth - Intake: -.205in
Valve Pocket Dia - Exhaust: 2.150in
Valve Pocket Dia - Intake: 2.150in
Notes: Recalibration req., Cylinder boring required

 

I guess people just use drag part numbers cause its easy to get parts from there. Thanks for those specs but that for a 103 not 95. Yeah that's where I got the 14 cc's from the wiesco website.

 

I don't want to hijack anyone's thread, but I thought it was very difficult for an individual to purchase from drag specialties. You have to be a dealer, right? How are their prices? Do they charge sales tax, in which case, forget it.

 

I bought a 2000 FXDX this summer with a 95 kit in it using the 10.5 forged pistons and direct drive S&S 585 cams with the Kompressor heads. Runs very strong - faster than my 110 CU CVO