View Single Post
Old 01-26-2009, 09:30 AM   #43
EvilClown
Reality show stunt double
 
EvilClown's Avatar
 
Joined: Sep 2006
Location: In the shadow of the Uncanoonucs...
Oddometer: 16,201
Quote:
Originally Posted by Bloodweiser


Ok. I can see that its a valve.... but is it in a lathe or something? I don't recognize anything else in that photo
MeRide gets into it a bit here:

Quote:
Originally Posted by MeRide
Oh boy.....someone has been posting classified photos again

SlipChip had it right. Its an engine valve being turned in a lathe. The third photo posted on the first page of this thread is the bike its going in. Restoration time. That bike was raced from 1967-1972 in Top Fuel class.

So, back in the day there weren't catalogs full of parts to buy for drag bikes. It was experimentation and lots of custom work. The racer that built that bike (the guy leaning over it in the photo) wanted big valves. More nitromethane and air in the more power. He bought used Manley stainless steel valves that the Top Fuel dragster racers burnt in their Chrysler 426 Hemi engines turned them down to 2 1/16" intake and 1 15/16" exhaust then cut down the stem length and recut the stems for the keepers. So, the same thing was done for the ongoing restoration. Lots of effort to make the resotration accurate and correct even though they'll never been seen.
My bad for bringing the bike up...somehow I got confused and thought Mark was done with this bike. Not quite the case yet. Guess this bike got him a little distracted. I can see why. If the images aren't there I'd be happy to host some for you Mark just to give a visual.

He does, however have some very interesting info related to the drag bike in trying to keep it 'period'.

Keep the drag bikes coming!
__________________
These are our Golden Years. ~ EC

The future is no place to place your better days. ~ DMB

ECUADOR: Maintaining Rigid Flexibility
EvilClown is offline   Reply With Quote