The Cartel

I have a 95 style vented opti and I was going to order this cam from Gmpartsdirect.com, do I need to specify dowel pin length or will it come correct size? Can't remember which is shorter or longer. Is that the cheapest/best place to order it?

Thanks Jason

The Cartel

C'mon guys my search has'nt helped me on this one.

ChevyTuffD.A.

Hey man I am pretty sure that the vented style is shorter. The cam you sold me has a shorter dowel then the cam my friend just ordered, even tho he has a 95 also. But you said this cc305 came out of a 95 so my cam has to be the right one.

The Cartel

Really! I thought it was the other way around. I could'nt remember. Thanks Dustin

Z95m6

The cams usually come with just a longer than needed pin. You just need to compare your old stock cam to the new cam and cut off the difference.

ChevyTuffD.A.

If the cam you sold me came out of a 95 with a vented opti then the dowel is shorter. No prob. I am still gonna get those springs from you sometime.

ibanez6rg

The vented opti needs the longer dowel pin.

atljar

vented is longer as kevvy just said. The 847 comes with the correct length for 95+ cars, but its always a good idea to measure it.

ChevyTuffD.A.

Hey Cartel. You said this cc305 came out of a 95 car with a vented opti right??? I am just checkin to make sure.

The Cartel

yea, that is why I'm confused?? I wish I had my stock cam to compare.

Jason

ChevyTuffD.A.

hhhhm....well, maybe I need to compare my friends cam again. Maybe it just looked like his was longer then mine. I can check sometime soon and we can get a for sure answer.

ChevyTuffD.A.

Hey I just measured my powel pin on my cc305. The dowel sticks out about 9/14 of an inch from the face of the cam. What should it be for a vented opti??

atljar

Non vented opti sparks should be about .300" from the face of the cam to the end of the pin.

Vented optis really range. Ive seen values from .605" to .685", but most agree somewhere around .620-.630"ish is good. 9/14" = .642".

ChevyTuffD.A.

OK then so mine should be fine??

atljar

Ya i really wouldnt worry about it, but if you want it to be perfect, hit it with a file. A hundreth of an inch will only take a stroke or two.