What exactly is a peanut cam, why is it called that and what is the difference in other thirdgen cams?

thanks

 

The peanut cam is the camshaft that was installed in LG4's, L03's and LB9 automatics. The reason it has it's name is because it has really sad duration and lift specs....

 

its tiny

 

copied this from the tech articles 1985 cam compared to the peanut cam
1985 305 TPI 1986 305 TPI
215 hp / 275 lbft 190 hp / 285 lbft
Tach: yellow 5000 Tach: yellow 4500
red 5500 red 5000

Lift: intake .404 .350
exhaust .415 .385

Duration: intake 320 307
(crank) exhaust 320 311
Pathetic isn't it

 

It's manufactured from peanuts.

It's unfortunate the cost-cutting lengths that GM will go to sometimes.

Although, it's not as bad as the time that I took apart a Chevette, and realized that there were Mexican hamsters running the whole thing. Cheaper than American hamsters, I suppose.

 

ok,, its just iv seen it used everywhere (and i mean everywhere) i thought maybe it was a special type of cam.. besides being crappy

thanks

 

Whoa man, you are being too generous to the "Peanut Cam" by a country mile!

It's real lift is .350 intake and .385 exhaust

Yeah, I rubbed my eyes the first time I saw it, too

As Apeiron once told me, "It's easy to have 18 pounds of vacuum when your valves are never open!"

 

Hey, now that I look again, you did get it right

Don't mind me, it's been a hard week ...

 

In all fairness, most peanuts have larger lumps than this cam profile. To prevent insulting most self-respecting peanuts, I began a campaign several years ago to rename the design the "LA" cam (LameAss). It seems more appropriate.

The one good thing that can be said for the profile is that it will support decent low RPM torque and provide a smooth idle, and is certainly never going to stress the valve train.

 

:sillylol: