ClassicCar

vmike wrote:

Is there published a chart that gives the cam specs for hudson cams by part number? I've done a bit of searching on the internet and hudson boards and come up with lift and duration for two hudson cams and three maas cams. The cam I pulled out of my junkyard 308 and currently curious about is 304078.



I have the same kind of question about where to find the manufacture dates of engines by serial number. Done some searching of the net and hudson boards, the few hudson manuals and service books from the epoc, no joy. My junkyard (practice) engine is 132181, the twin h engine I pulled out of the 53 hornet is 230678, and a 262 I bought to use as a test bed/display engine is 50180918. The engine out of the hornet is red with about an eight inch relief cut, as is the junkyard engine and from what I've read the hornet engine for 53 should have been gold. The 262 I'm just curious about.



I am interested in having these data charts if they are available. Can someone point me to a source?



mike

For your use









The following bulletin was taken from Ken Cates Stepdown Restoration Website:



S-553 dated 2-9-54



TO ALL DEALERS AND SERVICE STATION AGREEMENT HOLDERS:



We have available for Models 4D, 5D and 7D an EXTRA High PERFORMANCE CAMSHAFT, part C 311040. It was originally announced to Zones, Distributors, and Dealers on General Parts Policies and Information Bulletin 54-2, 1954 Series, dated August 27, 1953.



The NEW CAMSHAFT may be used to replace C 306344 standard production Camshaft for Models 4C, 5D and 7D, or C 309742 standard product ion Camshaft for Models 4D, 50 and 7D. C 309742 is also the standard production Camshaft for the 7X EXTRA High PERFORMANCE ENGINE offered for 1951, 1952, 1953 and 1954 models.



The price schedule of the new Camshaft follows.



Part No. - Name List Price Whlse. Net Dealer Net

C 311040 Camshaft 32.50 26.65 21.78



It is not possible to install this Camshaft in production; however, it will be shipped with the new car for field installation or installed at the Factory Service Garage at established flat rate charges.



When ordering for a new car, send a Parts Order to Fur Zone or Distributor covering the Camshaft specifying whether it is to be shipped for field installation or installed by the Factory Service Garage. It will be billed on a regular Parts Invoice.



C. J. Perrin

Parts Specification Division

Service Department

Mike

I have the manufacture dates by serial number (car and engine numbers are the same).

If you go to my website @ www.freewebs.com/hudsontech you can find this listing under "Miscellaneous Technical Information" - open the link and scroll down.



Hudsonly,

Alex Burr

HudsonTech

Memphis,TN

dougson wrote:

The cam I pulled out of my junkyard 308 and currently curious about is 304078.



IMy junkyard (practice) engine is 132181



mike

I've been doing some research on stepdown camshafts and regarding standard factory cams, there is some conflicting information. Most of the information on these cams comes from this website and the restoration website. Most print literature lists the standard '51-53 cam as the 306344, .356 lift, somewhere around 254 deg. duration. Two other cams have surfaced, the 304073 and the 304078 and possibly one other that I am still researching. The 073 has been found in '53 Hornet cars and has been measured, .356 lift, duration unclear. The 078, like yours, seems to have been found in '51 308s', I have no lift or duration info. It would be helpful if we had every example with a specific Hudson number spec'd and provide a table like the Clifford example in the restoration website, which in its current form is very inaccurate regarding cams.[/QUOTE]



Some additional info after checking MPC '48-'54:



306344 is listed as stock cam for the following:

1948: Super 6, Com 6

1949: Super 6, Com 6

1950: PM, PMD, Com 6

1951: PM, Suer 6, Com 6, Hornet

1952: same as '51

1953: Wasp, Super Wasp Hornet



I checked the Clifford Catalog back when he was actually make a store of parts:



"All Hudson engines (232, 262 & 308) come with a 306344 cam which became the standard low HP cam for Hudsons in '53. The '54 Hudsons first came out with the 309742 (7X) "Flat-top" cam and later in April '54 was replaced with the 306344A series cam. The 311040 cam (Super 7X high- lift cam .390" gross lift) came out in the fall of '53 for all-out oval track racing and has been a "severe usage" cam since. The HP rating of all 308 std. engines equipped with Twin-H power and 7.5 to 1 C.R. (alum. head) using a 306344 cam is 155 HP when using a 309742 (7X flat top) cam the HP is 170; and when using the 311040 Super 7X cam the rating is 180 HP. Our new 1956 mechanical grind cam has a HP rating of 170."



Haven't found any info on the 304078 as of yet. Alex Burr says he has no information on cam specs, as such. Someone like Randy or Russ Maas can probably fill in the missing blanks.

Well, I'd definitely contact Randy Maas and see if he has any additional info.

Turbopackman wrote:

Well, I too have one of the 304078 cams so they must have been relatively common. I'm just curious as to if they're worth anything before I put it on ebay.

Do you know what year and make of Hudson your 078 came out of?

Go here and send them an e-mail:



http://21stcenturyhudson.net/