Need to know the difference between the 799 and the 243 heads!

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Sep 25, 2009 | 12:53 PM

#11

nonnieselman

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From: Crystal Springs, MS

Quote:

Originally Posted by m3srt

i belive i have a 799 on the drivers side and a 243 on the pasengers side

were you the one to post up about it awhile back when you first got your truck? your SN looks fimialar..

Sep 25, 2009 | 06:55 PM

#12

joeyc125

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From: Cedar, MN

Only the ls6 243's have the sodium filled valves, the ones that came on the ls2 and 4.8/5.3 and the 799's do not have them. The ls6 ones also came with the yellow springs.

Sep 26, 2009 | 12:53 PM

#13

LS1FREEK

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From: Sublette, KS

Quote:

Originally Posted by joeyc125

Only the ls6 243's have the sodium filled valves, the ones that came on the ls2 and 4.8/5.3 and the 799's do not have them. The ls6 ones also came with the yellow springs.

Hey thanks man... That helps alot i thought all 243's had sodium filled valves.

Sep 29, 2009 | 02:16 PM

#14

JAX04

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From: Indy

Quote:

Originally Posted by LS1FREEK

Hey thanks man... That helps alot i thought all 243's had sodium filled valves.

is this true?

Sep 29, 2009 | 02:33 PM

#15

TXsilverado

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From: Humble Texas

not all 243 heads came with sodium valves...only the 243 castings used on LS6 engines came with sodium valves. all of the others use your standard valves.