How to check for upgraded cam

[yaahoos]

Is there a way to check whether an upgraded cam with longer lift or higher lift is in my 305?
( without tearing the engine apart ) I was told it did have a upgraded camshaft and does run a wee bit rougher than it should . Thx

 

[500/600]

You could check lift at the pushrod but that only tells you one facet and is more effort than it’s worth. Especially since you barely notice that it isn’t stock.

 

[pontiacgp]

https://performancetrends.com/ca20.htm

 

[yaahoos]

https://performancetrends.com/ca20.htm

I’m not understanding the viability to check while in engine and hookup. Quite extensive info though.

 

[ssn696]

If you end up digging into the engine, I have sometimes seen engraving marks on the end of the cam behind the timing gear. Not helpful now, I know.

 

[500/600]

If it’s not radical enough to be undriveable or obnoxious then it is close enough to stock to not be worth digging into. At most it’s probably in the neighborhood of a 0.450” and 214 degree. Any more in a stock 305 likely decreases performance.

 

[yaahoos]

If it’s not radical enough to be undriveable or obnoxious then it is close enough to stock to not be worth digging into. At most it’s probably in the neighborhood of a 0.450” and 214 degree. Any more in a stock 305 likely decreases performance.

Ahhhhh ok. Thx

 

[500/600]

In my opinion don’t let your curiosity cost you money in this case. Not trying to be a jerk in any way.

 

[fleming442]

I'll be a jerk...

NOPE

 

[yaahoos]

In my opinion don’t let your curiosity cost you money in this case. Not trying to be a jerk in any way.

I understand, compression is 145-150 , runs , starts, cruises fabulous, was just wondering what I had .......hehe