Anyone seen a throttle body like this?

[LGAFF]

http://i134.photobucket.com/albums/q115/lgaff/DSCN3557.jpg

[A26B]

? Does RP197278 stand for Rochester Part 197278
? Does SER 38419 stand for Serial Number 38419

[LGAFF]

Not sure I don't think I have seen this before, any markings on the prototype stuff?

[Blue Flame Restorations]

What is the story on it?

[LGAFF]

I sent a note to seller no response....but the #s are stamped in the top and bottom is etched by hand and not stamped liked others.....just know its not normal.

[Blue Flame Restorations]

Cool. I wonder if one of the MM guys would know anything about it?

[LGAFF]

Still 3 small casting tabs on the front also

[LGAFF]

I have 2 throttle bodies........have to keep one as I might be getting ZR-1 #3. Have the "normal" one posted for sale.....

[VetteMed]

RP probably = Rochester Products like Jerry said.

[LGAFF]

Just got this from a forum member......

BTW - the numbers on the other TB you posted are similar to those stamped on a pilot/prototype LT1 intake/TB I have. The RP# should be the engineering part number and all pieces on the setup appear to be serialized for data tracking.