Old Crane

[Daves69]

Pulled this grandpa cam out of a 440 today. Current catalogs I searched don't list any 1 bolt cams.
Anyone happen to have an older Crane Catalog with the year and specs on it they can post up for me?
Stamped.....
Bolt end....….H-236/333-12
Back end...….K1162
TIA

 

[33 IMP]

Educated guess....236° duration at .050, .333 lobe lift, (.500 at the valve with 1.5 rockers, probably slightly less with original mopars), 112° lobe seperation, hydraulic cam. Very similar to a purple shaft .509. K1162 is likely the grind #. Probably a Crane commander, 300° /.500 advertised.
I do have an old crane catalog, but I can't find it.

 

[Daves69]

Thanks again 33 IMP.

Went ahead and contacted Crane. It kinda' surprised me, they sent the card info PDQ..........

 

[wyrmrider]

ok 107 +117 = 224 / 2 = 112 LCA looks like ground 5 advanced
1ntake closes 92 abdc@.004 use for dcr calks or 85 @.006
overlap is 40 + 48 =88
maybe 305 @.006
and close to that mp cam 292@.008 maybe slightly more seat
its a .842 grind so no surprise that the mp is bigger @.050
.200 would really tell the story
shoul rev well
if you have both cams shoot a pic of the lobes
most likely it will have a more pointy nose than the mp, biggr noses wear better and less chance of valve flor
but being a crane should be smooth and rev well, just can't breath as deep as the mp
with spring shown it can't be too agressiv
ps the mp overlap is @.008 (ish) so to compare you have to adjust

 

[33 IMP]

Nice of crane, I'm impressed. I really helps having the actual timing events. Looks like a decent hot street cam for a 440+inch engine. I don't think I'd use it in a 383.

 

[Daves69]

if you have both cams shoot a pic of the lobes

I actually do have a MP 237. I see if I can get a side by side tomorrow.

 

[POMONAMISSEL]

and why not a b block ?

 

[rumblefish360]

I did the same thing with my Crane cam. The numbers can be a mystery sometimes. On the front of mine it just said “CCH-290 NC”, so I wrote Crane and I was answered in a couple of days, 2 I think.

I thought it odd and a bit more so now that I see advertised cam tappet timings of .004 vs .007, yours vs mine. Pretty light spring as well.

Went ahead and contacted Crane. It kinda' surprised me, they sent the card.....

 

[wyrmrider]

good question
that's a long cam
it would like to rev
maybe in a b motor with ported stock heads that max flow in the low .500 area and rev it up
not a low compression b or rb motor unless strip only and you are really going to rev it up
it's a lot bigger than the stock magnum cam

 

[33 IMP]

Interesting. Two crane hydraulics, both 236 @.050, with .500 lift (roughly) and one advertised at 290° and another at 312°. I wonder which one sold the best?

 

[Daves69]

I wonder which one sold the best?

BB vs SB?

 

[Cranky]

I wonder which one sold the best?

Knowing how a lot of people are, the 312 lol

 

[PRHeads]

One of my friends has a 68 Charger he bought in 1975.
At some point early on in his ownership it got a cam, intake, carb, headers.
It was that .500 lift Crane cam(or whatever version of it they had back then), a TM7, 850DP, some sort of headers.
At some point it had the MP electronic ign installed too.

I met him for the first time at the track in about 1987...... it was his first time at the track with it.
Car was 4.10’s and a 4 speed.

With street tires, it went a best of about 13.50(after some practice and coaching).
There were some runs well into the 14’s as well.

Over the next few weeks I ended up recurving the distributor and had him put a smaller carb on it and some small slicks. It ended up going 12.80’s next time out.
I think it ultimately ended up picking up a couple more tenths in that configuration.

So....... that cam is at least good for 12’s in a stock 440 long block, in a 4000lb car.
That’s not to say there aren’t better options out there now....... but that cam seemed okay for the era.

 

[33 IMP]

BB vs SB?

My bad, i didnt see that one was a small block. Still, both 1.5 rocker motors, I wonder why 22° difference in advertised, for the same 236° at .050?

 

[1 Wild R/T]

My bad, i didnt see that one was a small block. Still, both 1.5 rocker motors, I wonder why 22° difference in advertised, for the same 236° at .050?

As was mentioned earlier it appears Crane changed the measurement based on how much lift they took the advertised duration measurement at... One is taken @ .007 the other is taken @ .004. Theres a reason people who know what they are doing ignore advertised duration & go straight to the @ .050 numbers..

 

[33 IMP]

As was mentioned earlier it appears Crane changed the measurement based on how much lift they took the advertised duration measurement at... One is taken @ .007 the other is taken @ .004. Theres a reason people who know what they are doing ignore advertised duration & go straight to the @ .050 numbers..

Do you really think there was 22° between .004 and.007? I think they just pulled the 312 advertised number out of their a$$ for sales purposes.

 

[1 Wild R/T]

Do you really think there was 22° between .004 and.007? I think they just pulled the 312 advertised number out of their a$$ for sales purposes.

When the ramp is shallow it can hide allot of duration on both sides of the lobe... I do admit 22 degrees seems extreme, 12-15 wouldn't surprise me at all... 22 yeah that might have been pulled out of someones ***... If you look at the cam cards theres allot of other minor variations

 

[Daves69]

My bad, i didnt see that one was a small block. Still, both 1.5 rocker motors, I wonder why 22° difference in advertised, for the same 236° at .050?

Nothing bad there by ya'. You guys are teaching me! Thank you all!

It ended up going 12.80’s next time out.

That's pretty much in line with what the the guy told me he was doing at Oswego Drag Raceway (west of Chi) back in the day. Tells ya' how old this animal is.

Side by side.................

 

[wyrmrider]

camcraft shows 7 degrees between 004 and 006 so maybe 9-10??
looks like the purple shaft has a fatter nose
how's everyone else's eyes?
neither looks super pointy

 

[rumblefish360]

camcraft shows 7 degrees between 004 and 006 so maybe 9-10??
looks like the purple shaft has a fatter nose
how's everyone else's eyes?
neither looks super pointy

That’s really funny, “super pointy,” since you always point the finger and point up your nose while trashing non specific .904 designed camshafts as pointed nose garbage. But yet here we are!!!!!
Yes the MP is fatter.

BB vs SB?

Yes.

Knowing how a lot of people are, the 312 lol

LMAO! Definitely!

My bad, i didnt see that one was a small block. Still, both 1.5 rocker motors, I wonder why 22° difference in advertised, for the same 236° at .050?

Different ramps.