If anyone has any info to add, feel free to post it

Brand & Model
Material & Number, size, type of screws & weight Timing marks type &
Coating/treatment washer type range & precision
----------------------------------------------------------------------------------------------------------
Stock OEM
? N/A 11oz N/A

AC Autotechnic AR-AC200-%
T-6061 Al, CNC'd 3x 3/8" Stainless steel ? "Precise machined"
anodized +-10deg by 1deg steps

AEM 23-802% or 602%
6061-T6 Al, 5x "Grade-8, six-point hex bolts" ? laser etched
anodized gear "integral washer flange" +-10deg by 1deg steps

Crower 86054B%
6061-T6 Al, 4x "ARP(r)", 5/16" 12point "327g"=11.53oz "fully engraved"
anodized gear teeth "hardened washer" +-10deg by 1deg steps

Darkstar
6061-T6 Al, CNC'd 4x stainless steel 10oz laser etched
anodized gear teeth +-10deg by 1deg steps
"high polished gear center"

Edelbrock #4721 & #4723
T-7075 Al, 5x stainless steel ".55lb" = 8.8oz laser etched
anodized gear teeth +-10deg by 1deg steps

Fidanza 99168%
6061-T6 Al 4x Stainless Steel ".64lbs"=9.92oz laser etched
"beveled gears" studs, nut & lockwasher +-12deg by 1deg step
"coal blasting & anodized" is mentioned

Golden Eagle GDC200-B%
6061-T6 Al 4x Grade 8, 12point 5/16" bolts ? engraved, "easy to read AMPLIFIED timing scale"
"RMA standard" "thick" washers looks like +-9deg w/ (?) vernier scale
anodized


Golden Eagle GDC800-B%
? 4x ? ?

HKS 2204-RH001
Al, 3x ? laser etched
anodized "Duralumin" +-20deg by 2deg steps
"nickle plated gear teeth" (isnt that just plain old anodizing?)

Skunk2 304-05-%
7075-T6 Al, CNC'd 6x ? laser etched
anodized +-10deg by 1deg(?) step

Spoon 14211-16B-000
? 4x ? Vernier


STR DC0200Z
Al, CNC'd 5x 1/4" 12point bolts & washers ? ?
anodized
"RMA standards"

Toda
7075 Al, 4x 10oz Vernier "Machined"

 

interesting write up