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8 & 10 cyl Bristol cars Type 407 onwards - restoration, repair, maintenance etc

Spark plugs for 313/318 small block engine

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Old 18-06-21, 04:38 PM
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Default Spark plugs for 313/318 small block engine

Please could anyone inform me what is the current equivalent of the "Autolite" A32 spark club specified by Bristol in the workshop manual. I keep going round in circles but can find nothing definite.
Champion mention RN14YC and RN11YC
Autolite 65 and 64's also 751s
NGK are mention but non seem to be suitable for a 313/318.

Thanking you in anticipation, Nick Challacombe
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Old 18-06-21, 06:37 PM
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Autolite 32 replacement spark plugs
AC Delco 84TS
Beck Arnley 176-5178
Bosch D8AC
Bosch DR8BPX
Bosch stk 4226
Champion F62Y
Champion F79Y

Champion F81Y
Champion RF9YC
Champion stk 409
Denso MA16P-U
Denso stk 5007
General Motors 5612150
Mopar 4339430

Motorcraft BF12
Motorcraft stk 144
NGK AP7FS
NGK AP8FS
NGK AP9FS
NGK stk 1027
NGK stk 2227

Splitfire SM004E

From a simple Google
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Old 19-06-21, 12:23 PM
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Default Spark plugs for 313/318 small block engine

Not what I required thank you

Last edited by Nick Challacombe; 19-06-21 at 03:09 PM. Reason: Delete
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Old 19-06-21, 03:06 PM
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Default Spark plugs for 313/318 small block engine

Thank you Peter, simple google,

I too tried that but fail to understand why 21 plugs from 9 different manufacturers were the equivalent to Bristol Autolite 32

I was looking for a recommendation, not a clue as to which search engine I should use.

Thank you all the same.
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Old 19-06-21, 10:10 PM
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Nick
I went on same roundabout as you and ended up with these - NGK BP6S.
SLJ who had serviced the car previously had used NGK BP5S's.
Am happy with the plugs - mine's a 410 with a 318.
Hope this is of some help.
Andrew
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Old 20-06-21, 12:03 AM
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I covered many miles in 2 different 410s as daily drives using BP6RS. The same as Andrew suggests, but resistive. Originally using standard ignition, then with Lumenition electronic. No problems with them and would fit them again.
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Old 20-06-21, 06:31 AM
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I think I missed out an R and mine are resisted as well - will go and have a look in a mo.
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Old 20-06-21, 05:44 PM
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Smile 318/313 small block engine spark plugs.

For my sins I bought NGK AP8FS stk 2227 , which will be fitted next week preparing for a tour of the Dale’s. We did Brecon and the Gower last week and I felt the old girl should have all fluids changed and the filters, plugs, and pads including the hand brake pads which after 22 years of ownership and the fact the handle is now vertical need attention. The power steering fitted two years ago is a god send. I have done 60k miles in the beast , the only problem this year has been the Facet Red top fuel pump which occasionally ceases to function after stopping on a up run, but a tap on the body gets it going. I have cleaned the filter but have bought a spare just in case.
Thank you all for your help , including Peter the simple Googler !
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Old 21-06-21, 01:29 PM
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Glad you've got yourself sorted - sounds like a great couple of trips.
Andrew
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