[Saloon-lovers] Con Rod Bolts

Saloons
1

HI! Listers,
Con Rod Bolts are part of the heart of any engine.

I guess that forevermore Jaguar enthusuasts will always raise the Con Rod
Bolt issue.

Connecting Rod Bolts are the most critical threaded fastener in your engine!
They endure tremendous cyclical loading, the latter can cause fatigue
failure and complete destruction of your engine.

Jaguar original equipment connecting rod bolts are slightly better then
commercial grade bolts but designed to meet minimum costs and “normal”
operating conditions.

When you rebuild your engine for increased longevity to not replace the con
rod bolts (the original equipment connecting rod bolts often fail) is to me
a much ovelooked by some simple operation.

When a Con Rod Bolt fails it’s with catastrophic results.

In addition XK engines use s-t-r-e-t-c-h bolts which can only be used ONE
TIME as they are permanently stretched when installed. That’s why Jaguar
says in W/Shop manuals replace the con rod bolts.

My suggestion to use ARP 351/400 M Ford V/8 Bolts is because they are the
only bolt that fits the Jaguar XK Con Rod properly better then Jaguars own
Bolts Also fit better then some other bolts that are marketed for XK
engines.

Furthermore the ARP bolt is torqued to about 60 Ftlbs,this is done measuring
the stretch of the bolt with a Micrometer to ensure correct stretch and a
proper clamping of the all important con rod cap to con rod.

Experience has shown me that ARP bolts are very consistant and that 60 FT
lbs is always right on the money.

Regards
Terry Handley
Bathurst Australia_________________________________________________________
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2

OK, Terry, you’ve convinced me to look into them. We have 351 Fords over
here, so that means we should have the bolts. Does ARP stand for anything or
will they know what I’m talking about? Is it a dealer item or something that
is available at auto parts chains?

“Mark 1” Mark Stephenson (@Mark_Stephenson2)
1952 XK120 Roadster S673129
1958 Mark 1 / 1967 E-type Coupe
1984 XJ6 / 1985,6,7 XJ6 VDP
Jaguar Club of Central Arizona (www.cableone.net/jcca)-----Original Message-----
From: owner-saloons@jag-lovers.org
[mailto:owner-saloons@jag-lovers.org]On Behalf Of JAGPRO
Sent: Wednesday, April 03, 2002 4:47 PM
To: saloons@jag-lovers.org
Subject: [Saloon-lovers] Con Rod Bolts

HI! Listers,
Con Rod Bolts are part of the heart of any engine.

I guess that forevermore Jaguar enthusuasts will always raise the Con Rod
Bolt issue.

Connecting Rod Bolts are the most critical threaded fastener in your engine!
They endure tremendous cyclical loading, the latter can cause fatigue
failure and complete destruction of your engine.

Jaguar original equipment connecting rod bolts are slightly better then
commercial grade bolts but designed to meet minimum costs and “normal”
operating conditions.

When you rebuild your engine for increased longevity to not replace the con
rod bolts (the original equipment connecting rod bolts often fail) is to me
a much ovelooked by some simple operation.

When a Con Rod Bolt fails it’s with catastrophic results.

In addition XK engines use s-t-r-e-t-c-h bolts which can only be used ONE
TIME as they are permanently stretched when installed. That’s why Jaguar
says in W/Shop manuals replace the con rod bolts.

My suggestion to use ARP 351/400 M Ford V/8 Bolts is because they are the
only bolt that fits the Jaguar XK Con Rod properly better then Jaguars own
Bolts Also fit better then some other bolts that are marketed for XK
engines.

Furthermore the ARP bolt is torqued to about 60 Ftlbs,this is done measuring
the stretch of the bolt with a Micrometer to ensure correct stretch and a
proper clamping of the all important con rod cap to con rod.

Experience has shown me that ARP bolts are very consistant and that 60 FT
lbs is always right on the money.

Regards
Terry Handley
Bathurst Australia

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3

Terry said: “My suggestion to use ARP 351/400 M Ford V/8 Bolts is because
they are the
only bolt that fits the Jaguar XK Con Rod properly better then Jaguars own
Bolts Also fit better then some other bolts that are marketed for XK
engines.”

Folks -

In the U.S., Summit is a vendor for ARP con rod bolts - “summitracing.com”.

Bjarn

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4

HI! Mark,
The brand name ARP “Automotive Racing Products”. http://www.arp-bolts.com/

It’s important that the bolts obtained be for a Ford 351/400 M V/8, do not
use the shorter bolts that are available for the Ford 351 C V/8 engine.

Most big parts suppliers like Summit in the US or Rocket ,
http://www.rocketindustries.com.au/ in Australia & in New Zealand ,Segedins,
http://www.segedins.co.nz/Agents.htm carry the ARP bolts, there would most
likely be other Con Rod bolt makers who also have bolts for the Ford
351/400 M V/8.

The Ford 351/400 M V/8 has been exported from the US all around the world so
the bolts should be easy to get, maybe Listers in the UK could advise the
List where in the UK these bolts can be obtained.

In years gone I used for XK engines , a Mopar bolt which meant the rod had
to be re worked a little, once ARP made the said bolts ARP became the
obvious sensible choice.

Regards
Terry Handley
Bathurst Australia----- Original Message -----
From: “Mark Stephenson” marks@jaguarot.com
To: saloons@jag-lovers.org
Sent: Thursday, April 04, 2002 4:48 PM
Subject: RE: [Saloon-lovers] Con Rod Bolts

OK, Terry, you’ve convinced me to look into them. We have 351 Fords over
here, so that means we should have the bolts. Does ARP stand for anything
or
will they know what I’m talking about? Is it a dealer item or something
that
is available at auto parts chains?

“Mark 1” Mark Stephenson
1952 XK120 Roadster S673129
1958 Mark 1 / 1967 E-type Coupe
1984 XJ6 / 1985,6,7 XJ6 VDP
Jaguar Club of Central Arizona >

-----Original Message-----
From: owner-saloons@jag-lovers.org
[mailto:owner-saloons@jag-lovers.org]On Behalf Of JAGPRO
Sent: Wednesday, April 03, 2002 4:47 PM
To: saloons@jag-lovers.org
Subject: [Saloon-lovers] Con Rod Bolts

HI! Listers,
Con Rod Bolts are part of the heart of any engine.

I guess that forevermore Jaguar enthusuasts will always raise the Con Rod
Bolt issue.

Connecting Rod Bolts are the most critical threaded fastener in your
engine!
They endure tremendous cyclical loading, the latter can cause fatigue
failure and complete destruction of your engine.

Jaguar original equipment connecting rod bolts are slightly better then
commercial grade bolts but designed to meet minimum costs and “normal”
operating conditions.

When you rebuild your engine for increased longevity to not replace the
con
rod bolts (the original equipment connecting rod bolts often fail) is to
me
a much ovelooked by some simple operation.

When a Con Rod Bolt fails it’s with catastrophic results.

In addition XK engines use s-t-r-e-t-c-h bolts which can only be used ONE
TIME as they are permanently stretched when installed. That’s why Jaguar
says in W/Shop manuals replace the con rod bolts.

My suggestion to use ARP 351/400 M Ford V/8 Bolts is because they are the
only bolt that fits the Jaguar XK Con Rod properly better then Jaguars own
Bolts Also fit better then some other bolts that are marketed for XK
engines.

Furthermore the ARP bolt is torqued to about 60 Ftlbs,this is done
measuring
the stretch of the bolt with a Micrometer to ensure correct stretch and a
proper clamping of the all important con rod cap to con rod.

Experience has shown me that ARP bolts are very consistant and that 60 FT
lbs is always right on the money.

Regards
Terry Handley
Bathurst Australia

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