Guys with Crane Cams Book- Need Help

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madhatta360

madhatta360

1973 Duster 340 H-code TX9
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friends that have the old crane cams book, I need your help to determine what valve springs they recommend for crane cam 150062

I believe I may have found the spring part number but looking for some confirmation- valve spring 99835

I’m doing up a set of SM heads so need to find the specs so I can seek out a spring that will work for my cam.

Thanks
Kevin
 
Also, what engine is it for? The coldest I found is part number 150052 for an LA, which is a 272 energizer hydraulic flat tappet.
Okay, I found 150062, 282 Energizer for an LA small block.
The correct spring for that is Crane
99835-16. I’ll get spring specs so you can cross reference it in case you’re modifying your installed height/valve legnth/etc.
 
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Garrett Ellison said:
Also, what engine is it for? The coldest I found is part number 150052 for an LA, which is a 272 energizer hydraulic flat tappet.
Okay, I found 150062, 282 Energizer for an LA small block.
The correct spring for that is Crane
99835-16. I’ll get spring specs so you can cross reference it in case you’re modifying your installed height/valve legnth/etc.
Click to expand...
Nice, thank you, that’s the part number I found as well just wasn’t sure on the specs as I couldn’t find a lot of details.

340 LA block
 
Here You Go!
O.D. I.D. Damper Seat Press. Open Press. Coil Bind Rate (lbs/in.) Max Net Lift Application Part No
1.500 1.086 Yes 113 lbs @ 1.600 280 @ 1.150 1.000 412 lbs/in. 0.565 SB Chrysler; Street/Strip; RV/Truck Power 99835-16
According to the Wallace spring calculator if the installed height is set at 1.60, the spring pressure at .480 lift will be 291 pounds
 
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Crane #99835:
- 1.5" OD, 1.086 ID, has damper; Seat 113 @ 1.600". Open pressure 280 @ 1.15". Coil bind 1.000"". Rate 412 lb/in. Max net lift 0.565".

That is very high spring pressure for that size FT cam, not good for lobe/lifter life.
Might want to look at the Crower #68404.
 
Bewy said:
Crane #99835:
- 1.5" OD, 1.086 ID, has damper; Seat 113 @ 1.600". Open pressure 280 @ 1.15". Coil bind 1.000"". Rate 412 lb/in. Max net lift 0.565".

That is very high spring pressure for that size FT cam, not good for lobe/lifter life.
Might want to look at the Crower #68404.
Click to expand...
Yeah that was my initial reaction too seems like over kill for a hydraulic flat tappet cam. I’m gonna have to find springs to work with 1.6 rockers and 1.8” installed height cuz I’m using Eddy rpm heads/speed masters same thing. Just trying to get my base line down and then see if I can get close.
 
Garrett Ellison said:
Here You Go!
O.D. I.D. Damper Seat Press. Open Press. Coil Bind Rate (lbs/in.) Max Net Lift Application Part No
1.500 1.086 Yes 113 lbs @ 1.600 280 @ 1.150 1.000 412 lbs/in. 0.565 SB Chrysler; Street/Strip; RV/Truck Power 99835-16
According to the Wallace spring calculator if the installed height is set at 1.60, the spring pressure at .480 lift will be 291 pounds
Click to expand...
Thanks!
 
From Comps site
Max Lift: 0.54
Installed Height: 1.75
Coil Bind Height: 1.15
O.D. of Outer: 1.43
I.D. of Inner: 0.697
I.D. of Outer: 1.07
Spring Style: Dual
Spring Rate: 322
Seat Pressure: 132
Damper: Yes
The seat pressure comes up to a 123 @ 1.80, but you may could use some + .050 height valve locks to come in at 113 @ 1.85.
 
Old book.
20230226_083621.jpg


20230226_083635.jpg
 
If you don’t care to change retainers and locks and spend a little extra, this set would play nicely with that camshaft. The smaller retainer diameter provides more clearance for aftermarket rocker arms, too.
Howards Cams, Beehive (Inverted Conical) Valve Springs, 1.289" O.D., 110 @ 1.800", 275 @ 1.200" - Competition Products

From the Howards catalog
Beehive Beehive Valve Springs; 1.289 Howards Cams 98115 | Howards Cams

Retainers and locks for 11/32 valves. The retainers are for any valve stem diameter, you’ll have to use different locks if using something other than 11/32 valve stems.

VTO, 4140 Chrome Moly Steel Retainers 10 Degree , 1.095" - Competition Products

VTO, Forged Steel 10 Degree Valve Lock, 11/32 Valve Stem - Competition Products
 
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Been awhile since I’ve played with hydraulic cams but what type of open and closed spring pressure would you guys like with this 150062 hydraulic Crane cam
 
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