L92 valve to bore clearance

Reply Subscribe

Thread Tools

Search this Thread

Jun 10, 2007 | 11:24 AM

LSPerformance

Thread Starter

On The Tree

iTrader: (23)

Joined: Oct 2006

Posts: 155

Likes: 0

From: Charlotte, NC

L92 valve to bore clearance

Has anyone measured valve to bore clearance on the L92 setup? - if so, what bore size did you measure on?

Jun 10, 2007 | 11:38 PM

Richard@WCCH

Banned

iTrader: (3)

Joined: May 2002

Posts: 1,853

Likes: 5

From: Van Nuys, CA

The L92's nominal bore size is 4.00". Exactly what measurement are you searching for?

Richard

Jun 10, 2007 | 11:39 PM

Wnts2Go10O

TECH Veteran

iTrader: (12)

Joined: Dec 2004

Posts: 4,354

Likes: 0

From: Rockville, MD

Quote:

Originally Posted by Richard@WCCH

The L92's nominal bore size is 4.00". Exactly what measurement are you searching for?

Richard

i think hes thinking from the edge of the valve to the cylinder wall. dunno

Jun 11, 2007 | 07:22 AM

LSPerformance

Thread Starter

On The Tree

iTrader: (23)

Joined: Oct 2006

Posts: 155

Likes: 0

From: Charlotte, NC

Yes, valve "edge" to bore clearance @ 4.000" bore - I thought the nominal bore size for the L92 was 4.065"?

Jun 11, 2007 | 09:40 AM

Richard@WCCH

Banned

iTrader: (3)

Joined: May 2002

Posts: 1,853

Likes: 5

From: Van Nuys, CA

The valves aspect to the bore changes as it moves off the seat. The valves move toward the center of the cylinder and away from the bore edge as they leave the seat. Nearest I can tell the closest point of valve/bore distance is as follows:
The stock intake valve (2.160") leaves approx. .153" from the closest valve edge to the bore. The exhaust valve has a distance of .047" from valve edge to bore.

Hope this helps.

Richard