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fern51

decoding head numbers

Just can't stay away

is there a way to decode the number stamped into the head on the straight 8 engines.

Posted on: 2009/4/12 19:07

BigKev

Re: decoding head numbers

Webmaster

Which number? The casting number or part number?

Posted on: 2009/4/12 19:58

-BigKev

1954 Packard Clipper Deluxe Touring Sedan -> Registry | Project Blog

1937 Packard 115-C Convertible Coupe -> Registry | Project Blog

Owen_Dyneto

Re: decoding head numbers

Forum Ambassador

Kev, have you actually ever seen a Packard cylinder head with an actual part number? I can honestly say I've only ever seen casting numbers.

Posted on: 2009/4/12 20:17

fern51

Re: decoding head numbers

Just can't stay away

the number stamped into the drivers side rear of the head starts with a j. will go out tomorrow and get the rest of the numbers

Posted on: 2009/4/12 22:01

Owen_Dyneto

Re: decoding head numbers

Forum Ambassador

Starting with an alpha like "j" sounds like a motor number, not a part number.

Posted on: 2009/4/12 22:07

BigKev

Re: decoding head numbers

Webmaster

Are you sure that number is on the Head and not on the block?

If it's on the block on a machined pad in the location you described, then the ' J' signifies 1951 (or 24th Series)

J2XXXXX = 288, 8Cyl, 135hp, 200/200 Deluxe, 5 bearing
J4XXXXX = 327, 8Cyl, 150hp, 250/300, 5 bearing
J6XXXXX = 327, 8Cyl, 155hp, 400 Patrician, 9 bearing

Posted on: 2009/4/12 22:12

-BigKev

1954 Packard Clipper Deluxe Touring Sedan -> Registry | Project Blog

1937 Packard 115-C Convertible Coupe -> Registry | Project Blog

fern51

Re: decoding head numbers

Just can't stay away

my kid swears it is a 327, and i want to know if this is so and if it is engine that came in the car. sent kid out to get number off head and it is: j403816

Posted on: 2009/4/12 22:15

BigKev

Re: decoding head numbers

Webmaster

Let make this easy. If the number is located in the same place as indicated in the picture below, or in a similar location a bit more forward then that is the engine number on the block.

J403816 is a 327, 8cyl, 150ho, from a 250/300 car.

Attach file:

(68.59 KB)

Posted on: 2009/4/12 22:21

-BigKev

1954 Packard Clipper Deluxe Touring Sedan -> Registry | Project Blog

1937 Packard 115-C Convertible Coupe -> Registry | Project Blog

fern51

Re: decoding head numbers

Just can't stay away

ok, thanks. the guy i got the car from must have changed it out. many thanks for the patience yyou show us new packard owners. is there any one that sells rebuild kits for the vacuum wiper motor for the 51 200?

Posted on: 2009/4/12 22:24