"Performance Cam Grind" Question

[Columbo]

Hello all!

 

I bought my 1975 2002 last summer and have been working on it on and off all fall and winter.  It developed a knock in cylinder #2 so I removed the front sub frame and changed the rod bearings as well as a new oil pan gasket and bushings.  I haven't fired it up yet but I'm hopeful it was the bearings as the #2 was very worn.

 

I was rummaging through some of the recipes I got from the PO (that he was give by the PPO) and on one of them it says "performance cam grind", $65.

 

I know its nearly impossible to know exactly what was done, but can someone give me an idea what was probably done?  BTW, it was done in 2010.

 

 

[Son of Marty]

Well up in the N/W there was a Tacoma cam grinder who had a copy of a Tisa cam and many 02 cams were reground to this profile pretty much called a club grind and about 65$ was the price range, but with out a further info it could be anything. 

[TobyB]

 

You'd have to pull the cam sprocket cover- usually it'd say on the nose of the cam itself.

 

By 2010, Delta Camshaft in Tacoma had the 292 and 304 Schrick profiles as well- they would be most

likely to recommend a longer- duration but lower lift than the 292...

 

t

 

 

[Columbo]

I checked the receipt again and it WAS done in Tacoma at a place called Progressive Automotive.

 

This is my first 2002 so I have nothing to compare it to performance wise.  

[AceAndrew]

Grab a set of measuring calipers and get the measurement of a lobe's base circle (smallest OD) and then measure the tall side (largest OD).  Subtract the smaller number from the larger and you've got your cam lift.  That will give you a step in the right direction (short of Toby's suggestion of looking for a grind number on the nose).

Edited February 17, 2017 by AceAndrew

[TobyB]

That works, too-

and you could always just call 'em. 

Having a receipt is a major bonus..

 

t

 

[Tlambert]

That works, too-
and you could always just call 'em. 
Having a receipt is a major bonus..
 
t
 

I had the same situation, had a receipt from the machine shop, called them up and they told exactly what I have!


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