Name That Cylinder Head!

Reply Subscribe

Thread Tools

Search this Thread

Apr 6, 2018 | 10:30 AM

joejamesatou

Thread Starter

Staging Lane

Joined: Jul 2017

Posts: 78

Likes: 2

From: Texas

Name That Cylinder Head!

So I picked up two heads that were identified as 243/799 heads, but the casting was shaved off at the corners. Just wanted to see if anyone could tell by the casting #s that I can see to verify what it is. See attached pics! Thanks!!

Attached Thumbnails

Name That Cylinder Head!-img_20180405_070216.jpg

Name That Cylinder Head!-img_20180405_070205.jpg

Apr 6, 2018 | 11:22 AM

Hardtop Brian

10 Second Club

Joined: Oct 2015

Posts: 238

Likes: 5

From: Hillsdale, MI

12564243 is a gm part number. Comes up as a 2001 ls6 head

Apr 6, 2018 | 11:23 AM

joejamesatou

Thread Starter

Staging Lane

Joined: Jul 2017

Posts: 78

Likes: 2

From: Texas

Well! So those have sodium filled valves. In that case I am ecstatic. Ported/polished and will be going on an LQ4 soon.

Apr 6, 2018 | 11:52 AM

parks450

TECH Enthusiast

iTrader: (17)

Joined: Oct 2010

Posts: 649

Likes: 2

From: Wyoming

They may not have those valves since they are have had work done to them. They could have been swapped out etc. Technically they should but only way to confirm is to take a few out and weigh them.

Apr 6, 2018 | 08:01 PM

00pooterSS

TECH Veteran

iTrader: (40)

Joined: Mar 2008

Posts: 4,920

Likes: 531

From: Dallas

Quote:

Originally Posted by parks450

They may not have those valves since they are have had work done to them. They could have been swapped out etc. Technically they should but only way to confirm is to take a few out and weigh them.

Or measure length, the lightweight LS6 valves are longer.

Reply Subscribe

Reply Share

First
Prev
1 / 1
Next
Last