Piston I.D. please [Archive]

dualqwad

11-09-2002, 10:08 PM

Can someone please tell me what these pistons fit?

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=1872306644

Thanx!

Roberta

11-09-2002, 10:36 PM

Too bad they don't have a pic of the top, would be alot easier to see what they are!!!!!!!! Send them a message. R

dualqwad

11-10-2002, 12:30 AM

Roberta said:Too bad they don't have a pic of the top, would be alot easier to see what they are!!!!!!!! Send them a message. R

Done!:TU:

GSXMEN

11-10-2002, 01:31 AM

Robert,

4 3/16" is 4.188 which is standard bore for the 401 nailhead - same with the 430.

That should narrow it down a bit.

Babeola

11-10-2002, 06:08 AM

Robert,

The dome looks kind of short relative to a stock cast piston. I would guess 9 to one or lower unless the compression height has been raised. Attached is a picture of a .030” over 401 piston for comparison.

Cheryl :)

dualqwad

11-10-2002, 07:22 AM

I was hoping they would fit a 425.:(
Maybe for an earlier nailhead?
You have confirmed my suspicions that they are a low compression variety.
Thanx!:TU: