No Cam Card

[bsprowl]

I bought a BBM 482 short block and to my surprise the seller had no cam card for his new solid lifter cam.  I finally got around to checking the cam today.

This is what I found:
@0.050 lift 0.391 at the cam, 0.688 lift at the valve on both intake and exhaust.
Intake opens at 28 degrees BTDC, closes at 76 degrees ABDC.  Lobe center line is 104.  Duration is 284.
Exhaust opens at 70 degrees BBDC, closes at 32 degrees ATDC.  Lobe center line is 105.  Duration is 282.
Lobe separation angle is 104.5. Overlap is 48 degrees.
 
The short block uses Jay's adjustable timing gear setup and is at 4 degrees retarded.  I did not use this setting in the above calculations.

I have no idea who made the cam and no idea what valve clearance I should use.  I am thinking about starting with .022 and then experimenting from there.  I have a set of BBM heads and a set of Edelbrock Pro Port heads from Blair Patrick.  It will be using a Cleveland Weiand tunnel port intake with Jays adapter.
 
I will be using this engine in a ’70 Maverick; the car weighs 1400 pounds without the engine and transmission, radiator, etc., and hopefully not more than 2500-2600 pounds when completed.

[frnkeore]

That's quite a cam!

Try measuring the LSA at .050 from the top of the lobes. If it's a asymmetrical lobe, it may be different.

Are there any markings on the front or rear of the cam?

Do you have any idea who built the short block?

It has a low lift for the 284 duration. I took a quick look at CC lobes and found a fairly close CR lobe, 315, 284, .395 lift and with that 104.5 LSA would give 105 overlap.

[blykins]

Pop the rear cam plug out of the block and look at the rear of the cam.  Chances are the lobe numbers and LSA are on there. 

[bsprowl]

Engine was built about five or six years ago by Total Engines near Minneapolis, MN.  The shop is closed and the retired owner does not recall any details.  The seller had no paperwork on any part of the engine.  The seller did give me the name of the shop that did the heads, Janson Anderson Heads, did not reply to my emails and phone messages; I assume they too are out of business.

To get to the cam plug I'll have to remove the engine from the engine stand. Probably be next week.  I'll also measure the duration at 0.006, 0.100, 0.200, and 0.300 at the cam to get a better picture of the cam profile.   

Changing the subject a bit:  The Scat engine does not rotate easily.  Break away torque is 35 Ft-Lbs, turning torque is 30+ ft-lbs. I'm going to squirt some oil in the cylinders and see it that will help.  I did wipe the top of the cylinders and got a lot more tiny bits of dirt than I wanted.  It was bagged when I got it and I've kept it bagged.

[thatdarncat]

… The seller did give me the name of the shop that did the heads, Janson Anderson Heads, did not reply to my emails and phone messages; I assume they too are out of business.

Jason Anderson - JAnderson cylinder heads - is very much in business and doing well. I’m going to guess you maybe have out of date contact information. He has a facebook page.

[blykins]

Engine was built about five or six years ago by Total Engines near Minneapolis, MN.  The shop is closed and the retired owner does not recall any details.  The seller had no paperwork on any part of the engine.  The seller did give me the name of the shop that did the heads, Janson Anderson Heads, did not reply to my emails and phone messages; I assume they too are out of business.

To get to the cam plug I'll have to remove the engine from the engine stand. Probably be next week.  I'll also measure the duration at 0.006, 0.100, 0.200, and 0.300 at the cam to get a better picture of the cam profile.   

Changing the subject a bit:  The Scat engine does not rotate easily.  Break away torque is 35 Ft-Lbs, turning torque is 30+ ft-lbs. I'm going to squirt some oil in the cylinders and see it that will help.  I did wipe the top of the cylinders and got a lot more tiny bits of dirt than I wanted.  It was bagged when I got it and I've kept it bagged.

Just a short block?  I'd check things out closely.   I usually get anywhere from 8 lb-ft to 15 lb-ft on turning torque depending on the rings and bore size. 

[bsprowl]

I agree.  482 cubes from a 4.25 bore and 4.25 stroke.  I'm hoping a bit of oil will fix it.  It has been sitting a long time.  I really don't want to tear it down.

[My427stang]

The seller did give me the name of the shop that did the heads, Janson Anderson Heads, did not reply to my emails and phone messages; I assume they too are out of business.

Jason Anderson is a sharp guy and does very nice work.  As said, his business is JAnderson Heads

He has done a bit of work for me that I used on forum member builds. He has done some nice FE and 351C work and hit the numbers each time.  Nice guy to boot.  His email is Jandersonheads@gmail.com.

if on Facebook you can contact him too,  https://www.facebook.com/Jandersonheads/

[blykins]

I agree.  482 cubes from a 4.25 bore and 4.25 stroke.  I'm hoping a bit of oil will fix it.  It has been sitting a long time.  I really don't want to tear it down.

Is it a new short block or one that's been ran?

[bsprowl]

New.  Never completely assembled.  I got 98% of a complete engine - no flywheel or distributor.  Probably missing a few other minor things.

When I wiped the excess oil out of the cylinders I got a lot of fine dirt. I'll probably tear it down to get it clean.

[blykins]

IMO, dirt wouldn't cause that much drag.  I'd yank it all apart, make sure the rods are facing the right way, make sure the rod bearings aren't hitting the crank fillets, make sure that the slinger on the crank isn't hitting the block, make sure the thrust bearing isn't giving you issues, etc.  That much torque to turn a fresh, modern engine over is a warning sign that something isn't right. 

If you would have told me that it was a new 390 with old tractor piston rings on it, I might entertain that thought, but not modern stroker stuff.

[bsprowl]

Removed the cam plug.  This is what I found:  "T50550"  "312803"  "424349". Nothing else; I have no idea what those mean. 

[mn67]

Cam Card for the 482 - Sent 10-22-23

[DuckRyder]

^  This place is amazing.

[Jb427]

That cam is close to what I have in my 482 fairlane mine is a solid roller my car is 4000 pounds and if you think you will have 2600 pounds finished that will be a spicy unit. Did you give Blair a call now you know the spec's and ask him what set of heads you should use? I run bbm's on mine.