[xk-engine] engine numbers

Can anyone give me the interpretation of numbers
LA9419-9 FD94
I need to know displacement, compression ratio, and anything else useful.

Thanks,
Brandon B. Shriver
XK 140 OTS MC-E
S810189
Hazleton, PA
http://www.shriverperformance.com
http://www.knightmares.com/wagoneer/engine

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In a message dated 12/1/02 4:00:25 PM Eastern Standard Time,
bbshriver@earthlink.net writes:

Can anyone give me the interpretation of numbers
LA9419-9 FD94
I need to know displacement, compression ratio, and anything else useful.

Hello Brandon,

LA9419-9, would be a 3.8, from a 1961 Mark2, originally fitted with 9:1
pistons. It should have a blue “B” type head (core plug in first position)
and twin HD6’s with a starting carb.“E” type intake manifolds will not fit
this engine.

Paul Saltwick

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I have a question regarding engine numbers. I have a head
with the number W6383-8S which matches the number on the
plate. The block number says C4820 and is a 3.8 liter
engine. I have been told there where no 3.8 engines for a
1953 XK120. Could this be because someone replaced the
block with a 3.8 in place of a 3.4 ? Thanks–
skip clemons
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–

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In reply to a message from skip clemons sent Mon 10 Sep 2007:

FYI

http://www.jdht.com/my_jaguar/pdfs/XK.pdf

http://www.car-nection.com/jagbase/jxk120.htm

http://www.car-nection.com/jagbase/engines1.htm--
Alex_007
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
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In reply to a message from skip clemons sent Mon 10 Sep 2007:

Hi Skip,

A list of engine/head numbers can be found on

http://www.jag-lovers.org/xk-lovers/library/engine_numbers.htm

This doesn’t list a ‘‘C4820’’ it’s probably ‘‘LC4820’’ which
comes from a 3.8L Mk2.

The 3.8 engine wasn’t introduced until the middle of the
life of the XK150.

So as you guess, someone has replaced the original 3.4L
block with a later 3.8L one. As the head wasn’t replaced it
was probably because there was a problem with the original
block. If they’d changed it just as an upgrade they would
probably have changed to a later head as well.

Cheers

Ken–
The original message included these comments:

I have a question regarding engine numbers. I have a head
with the number W6383-8S which matches the number on the
plate. The block number says C4820 and is a 3.8 liter
engine. I have been told there where no 3.8 engines for a
1953 XK120. Could this be because someone replaced the
block with a 3.8 in place of a 3.4 ? Thanks

skip clemons


Ken XK150 FHC S824252, see her on xkdata + X300 3.2 Sport
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
–Support Jag-lovers - Donate at http://www.jag-lovers.org/donate04.php

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In reply to a message from Ken Green sent Tue 11 Sep 2007:

Thanks, that is what I thought might have happened. I am
trying to find a distributor cap and there is some confusion
over what I need. Since I have a different block from a 3.4
in 1953 to a 3.8 I am not sure which cap I need. The
numbers on the distributor look like DVXH6A 40 996 but so
far no one seems to know for sure which cap I need. I do
know that it is the screw in type.–
skip clemons
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
–Support Jag-lovers - Donate at http://www.jag-lovers.org/donate04.php

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My XK120 cap has a ~1/2" semi-circular cutout on the bottom edge while the
3.8 does not.

Mike Eck
New Jersey, USA
www.jaguarclock.com
'51 XK120 OTS, '62 3.8 MK2 MOD, '72 SIII E-Type 2+2

Thanks, that is what I thought might have happened. I am
trying to find a distributor cap and there is some confusion
over what I need. Since I have a different block from a 3.4
in 1953 to a 3.8 I am not sure which cap I need. The
numbers on the distributor look like DVXH6A 40 996 but so
far no one seems to know for sure which cap I need. I do
know that it is the screw in type.

skip clemons

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