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What year engine do I have?
  • re50calre50cal
    Posts: 29Greasemonkey
    I purchased a 1946 Hudson Big Boy Pick up. If I am correct the serial number is supposed to be the same as the engine number. Well it is not. The engine number is 159659. The vehicle number is 3873708. It appears to me the engine is a 1940 engine and not a 1946 engine. I'm confused. Need to know which year engine to be able to tune it properly. Help Please.
  • Tallent RTallent R
    Posts: 1,574Platinum Member
    At this point in time its not surprising a motor could have been changed. And if you have a pick-up with an 8 it is for sure not original motor.Unless its not realy a truck but a modified car,
    Roger
    Retired Tech.
  • re50calre50cal
    Posts: 29Greasemonkey
    Thanks for response. The engine is an 6 cylinder
  • Park_WPark_W
    Posts: 2,052Platinum Member
    That engine number doesn't seem to match up with any year's number format. Are you sure you're looking at the engine serial nr.?
  • hudsontechhudsontech
    Posts: 4,042Platinum Member
    Park W wrote:
    That engine number doesn't seem to match up with any year's number format. Are you sure you're looking at the engine serial nr.?

    Actually that number, 159659, does match up with March 1952 Ser No's 152065 to160796. If that is indeed the case then the engine is either a 232, 262 or 308.

    Hudsonly,
    Alex Burr
    Memphis, TN
    http://www.hetclub.org/
    http://hetclub.org/burr/lithomepage.htm
  • Lee ODellLee ODell
    Posts: 1,838Platinum Member
    You have a very good looking truck. Have a good time cruising around in it. Thank you for sharing the photo with us.

    In addition to Alex information look at the side of the block about 2 1/2 inches above the oil pan. If there is a 1/2" casting protruding the lenght of the engine it is a 308 engine. If it is not there it is either a 232 or 262 which will have the engine size cast on the head.

    But heads have been know to be interchanged between 232, 262, and 308 engines.

    Have a good day.
    Lee O'Dell
  • re50calre50cal
    Posts: 29Greasemonkey
    Guys there are no numbers on block on the side it is supposed to be on for that year(46)which is supposed to be on the block between exhaust ports 1 and 2. The only numbers I see are on the driver side of engine block (165610) with a CWG under it and a number 1 directly under CWG. Here are some photos
    100_0046.JPG
    800 x 600 - 64K
    100_0045.JPG
    800 x 600 - 55K
  • re50calre50cal
    Posts: 29Greasemonkey
    [attachment=13046]100_0046_2012-01-27.JPG[/attachment]

    [attachment=13047]100_0045_2012-01-27.JPG[/attachment]


    The only number I see on block are on the driver side as shown in the pic. 165610 with CWG under it and the number 1 directly under that.
    100_0046_2012-01-27.JPG
    800 x 600 - 64K
    100_0045_2012-01-27.JPG
    800 x 600 - 55K
  • re50calre50cal
    Posts: 29Greasemonkey
    Thanks, love your car. Take a look at the photos I sent of the engine
  • re50calre50cal
    Posts: 29Greasemonkey
    No, I dont think I am. I pulled that number off the top of the engine. But the only numbers on the block that are visible are in the photos I posted
  • MikeWAMikeWA
    Posts: 1,445Platinum Member
    Somebody smarter than me should take a look, but I think thats a "splasher" 6- pre 1948- from the water jacket on the side- so it wouldn't be a 308, even though it has a rib.
  • Park_WPark_W
    Posts: 2,052Platinum Member
    re50cal wrote:
    No, I dont think I am. I pulled that number off the top of the engine. But the only numbers on the block that are visible are in the photos I posted

    Do you mean you pulled that number from the top of the block? Or from the cylinder head?
  • Marconi
    Posts: 549Platinum Member
    With the dist at the rear of the cyl head it's a 40 to 47 engine. It could be the original engine or a replacement engine, i.e. a Sears reman engine, etc.
  • Marconi
    Posts: 549Platinum Member
    The engine # you want is stamped in the top of the block between the first two exhaust ports.
  • re50calre50cal
    Posts: 29Greasemonkey
    The first number on my first post was off the top of the cylinder head. I think that was incorrect. The only number on the block is the number shown in the photo which is 165610. I do not see any numbers on the other side between exhaust ports one and two or on that side of the engine at all. Thats why I'm thinking its not the original engine. But simply trying to figure out which engine it is.
  • Geoff C., N.Z.Geoff C., N.Z.
    Posts: 2,267Platinum Member
    That's not the engine number, it's the casting number, and I would venture to say you have either the original engine, or a replacement of the correct type.
    If you're stuck in a hole, stop digging.
  • Lee ODellLee ODell
    Posts: 1,838Platinum Member
    It looks just like my 1947 PU engine. The engine # is located on the top of the cylinder block, right side, between numbers one and two exhaust ports. That is where mine is right next to the head.

    If the paint is thick you may have to scrape it off to see the number.

    Lee O'Dell
  • 46HudsonPU46HudsonPU
    Posts: 5,148Moderator
    Your engine looks very much similiar to the engine in my '46 Hudson pickup (picture of my truck's engine below). As has been previously stated, I believe the engine in your truck is either the original engine, or a replacement engine (212 cu in, flathead six, 'splasher').

    71b902457608d85de4aa5183.jpg
    Rick
    Hudson Essex Terraplane Club website
    HET Club on Facebook
    HET Club Forum
    My little webpage
  • Lee ODellLee ODell
    Posts: 1,838Platinum Member
    If the engine has been rebuilt and the block decked then the numbers could have been removed by the cutter.

    I do not thick you will have a problem using 46-47 engine specs. Its not likely someone would put in an earlier engine.

    Lee O'Dell
  • LanceBLanceB
    Posts: 674Platinum Member
    Nice looking truck, and I like the color ;) The picture of your engin look original, but others can tell you more.
    Lance
  • re50calre50cal
    Posts: 29Greasemonkey
    Thanks for the pics, I'm hoping its original. Can someone please send me a pic with someone pointing at the location of where the number should be on the engine. I would be o so grateful. I know I'm asking a lot but I think like you said it might be painted over. The engine paint seems rather thick.
  • re50calre50cal
    Posts: 29Greasemonkey
    In this photo I am pointing at a series of numbers on the top of the engine cylinder head. Is this the correct location?
    [attachment=13052]100_0049.JPG[/attachment]
    100_0049.JPG
    800 x 600 - 57K
  • Tallent RTallent R
    Posts: 1,574Platinum Member
    Move your finger back toward yourself and let it drop down to the block. That small machined flat is where I belive everyone is trying to tell you,
    Roger
    Retired Tech.
  • walts garage-53
    Posts: 1,470Platinum Member
    Move your finger back towards you and when you come to the end of the cylinder head, move finger forwards along the head and when you come to the second head stud the number will be stamped in the flat surface of the block between 1and 2 exhaust ports. Use a small wire brush and clean the surface good. Walt.
  • re50calre50cal
    Posts: 29Greasemonkey
    Got it, Got it!!!!!!!!!!!! the paint is so thick I can barely see one of the numbers, I will wire brush it some in the a.m. Wow, what a relief. Thanks everyone. The engine runs good, needs a carburetor though, so does anyone know where I can find a rebuilt one.
  • Marconi
    Posts: 549Platinum Member
    Check with Jason @ vintage Coach. Tues to Sat 8am 'till 5pm. 909-823-9168
  • Lee ODellLee ODell
    Posts: 1,838Platinum Member
    I'm glad you found the engine Number. Check with Walt (Walts Garage-53). He rebuilds carbs.
    Lee O'Dell
  • Uncle JoshUncle Josh
    Posts: 1,860Platinum Member
    re50cal wrote:
    Got it, Got it!!!!!!!!!!!! the paint is so thick I can barely see one of the numbers, I will wire brush it some in the a.m. Wow, what a relief. Thanks everyone. The engine runs good, needs a carburetor though, so does anyone know where I can find a rebuilt one.

    Walt (previous post) rebuilds them. HETmmordenti@aol.com or HET4158245222 and don't use the HETs.

    BTW, when you get around to it, send me Name, address and Serial No and I'll add you to the truck registry. HETcramerlp@roadrunner.com (minus the HET)
  • re50calre50cal
    Posts: 29Greasemonkey
    Correct Engine # is 17139004.
  • Lee ODellLee ODell
    Posts: 1,838Platinum Member
    According to the engines vin # the engine came from a 1947 Super Six.

    Have a good eventing.
    Lee O'Dell
  • hudsontechhudsontech
    Posts: 4,042Platinum Member
    re50cal wrote:
    Correct Engine # is 17139004.

    Specifically the engine comes from a 1947 Hudson built sometime in early April 1947 (serial numbers for April ran from 37414 thru 47480.

    Hudsonly,
    Alex Burr
    Memphis, TN
    http://www.hetclub.org/
    http://hetclub.org/burr/lithomepage.htm
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