1985/1986 5.0 serial numbers

86ACMKIV · January 13th, 2012, 02:32 PM

I have a 1986 AC MKIV Cobra that was built and completed in England, February 1986. Please provide me with the last serial number in 1985 so that I can find out if I have an 85 or 86 engine. Also, please tell me where the serial number is located on the block and if the 85 serial numbers are different that the 86s (ie: added or changed letters).

What is the difference between the 85 /86 pistons and compression?

ryanw · January 13th, 2012, 04:07 PM

No such thing as a 85 or 86 cobra.....it was just an out of country designation , i believe. Most likely all you have is a gt....

85 is carb and 86 is fuel injected. 85 has a smaller rear end and the exhaust sytem runs into a y pipe and then splits back off into two tail pipes. The 86 has the 8.8 rear end and has true dual exhaust all the way back

101fng · January 14th, 2012, 04:44 AM

He's talking about an AC cobra like the factory fives

86ACMKIV · January 16th, 2012, 06:27 PM

I am asking about the engines not the cars. Yes, I have a 1986 AC Cobra MKIV built in England. Number 131 out of 386 built. The Real Thing. No F in kit car!

January 13th, 2012, 02:32 PM	#1
86ACMKIV Newbie Join Date: Jan 2012 Posts: 2 iTrader: 0 reviews	1985/1986 5.0 serial numbers I have a 1986 AC MKIV Cobra that was built and completed in England, February 1986. Please provide me with the last serial number in 1985 so that I can find out if I have an 85 or 86 engine. Also, please tell me where the serial number is located on the block and if the 85 serial numbers are different that the 86s (ie: added or changed letters). What is the difference between the 85 /86 pistons and compression?

January 13th, 2012, 04:07 PM	#2
ryanw I Post Entirely Way Too Much 1991 Ford Mustang GT Join Date: May 2007 Location: San Diego, California Posts: 6,063 iTrader: 0 reviews	No such thing as a 85 or 86 cobra.....it was just an out of country designation , i believe. Most likely all you have is a gt.... 85 is carb and 86 is fuel injected. 85 has a smaller rear end and the exhaust sytem runs into a y pipe and then splits back off into two tail pipes. The 86 has the 8.8 rear end and has true dual exhaust all the way back __________________ DART 331ci stroker, AFR 185 heads, Trick Flow R intake, Accufab 70mm tb, 75mm pro m Maf, 30lb injectors, jba headers, 2 1/2" x pipe flowmaster super 10 mufflers, 255 fuel pump, 3:27 gears

January 14th, 2012, 04:44 AM	#3
101fng Banned 2009 Mustang GT Join Date: Apr 2008 Location: Johnson City, TN Posts: 6,520 iTrader: 2 reviews	He's talking about an AC cobra like the factory fives __________________

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January 16th, 2012, 06:27 PM	#4
86ACMKIV Newbie Join Date: Jan 2012 Posts: 2 iTrader: 0 reviews	I am asking about the engines not the cars. Yes, I have a 1986 AC Cobra MKIV built in England. Number 131 out of 386 built. The Real Thing. No F in kit car!

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