Engine Number

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betterlifenz
New Member
Posts: 2
Joined: 07 Oct 2021, 21:41

Engine Number

#1

Post by betterlifenz »

I believe my 1973 XR7 Hardtop has had an engine transplant. The current engine number is 3B19457C. Can anyone help with decoding that number?
68PUMA
Registered Member
Posts: 513
Joined: 02 Nov 2011, 11:43
Location: MO

Re: Engine Number

#2

Post by 68PUMA »

Yes, you are correct that it is an engine transplant. It breaks down as:3-Year (Possibly 1973), B-Assembly Plant of the car that the engine was originally in-Possibly Oakville,Ontario Canada & 19457C-VIN to the car. Since it starts with a "1", it was in a Ford originally (Mercury would of started with a "5".Also, recheck to see if the letter "C" is either a 0 (zero) or a "6".
Also to determine what year the block is, check for the engineering number, it should start with a letter: D would be for the decade of 1970s, D3 would be 1973,E would be for the decade of 1980s, etc. and also look for the casting date: ie: 3B22 would be 3-year, B-Month of February & 22-22nd day.
Good luck. John
betterlifenz wrote: 07 Oct 2021, 21:50 I believe my 1973 XR7 Hardtop has had an engine transplant. The current engine number is 3B19457C. Can anyone help with decoding that number?
1968 XR7 F-Code (302-2V), C4, Polar White (M), Dark Red Leather (6D), 23U, 46, 5, W, PS, A/C, CCOA #8579, MACC, Under Restoration
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