Here are the specs on my little motor.
95 LT1 out of a 9C1 Caprice
94 LT1 Heads from a Corvette
LT4 Hotcam with a short dowel
96 SS Optispark
96 SS Waterpump
96 SS Accessories and bracket

the old LT1 cam had a long pin on it, and I tried to pull it out but couldn't. I couldn't get the short one out of the hotcam either.
There is a little bit of the dowel pin sticking out of the cam gear that is goes into the opti. Will anything break due to the dowel being so short since it looks like if the dowel wasn't there that the cam gear bolts would turn the opti just fine.
I've got the motor all assembled and ready to drop into the car tomorrow.

Oh, and how do I get the hub all the way onto the crank? It needs just about 1/4"-1/3" more until it is completely on. I don't want to bang on it too hard if I don't have to.

Any help at all is appreciated.
Thanks.

 

I used a small hammer and tapped in the pin on my CC306.. If you need it to the dowels will come out.

 

As far as putting the hub on the crank it should be put on with a installer, they use the threads of the bolt in the crank and a large threaded nut and washer to pull the hub on the crank. If your hub is on and you need to put the ballancer/pully on a little work with some sandpaper or emery tape and it will slip on the hub.
I dont like to hammer them on its hard on the thrust bearings and the crank.

 

Vice grips, and twist as you pull the dowel.

 

I just installed a CC502 cam and a new DynaSpark opti on my 97. The dowel was too long so I ground it down to the specs I was provided in the DynaSpark directions:

Max height .605" (from face of cam to tip of dowel) and from installed camshaft gear to tip of dowel max height .375".

From another source I read from face of cam: .620 +/- .10

Check with others, but that is what info I have.

 

Thanks for the tips.
I was trying to pull the longer dowel out of my stock cam, but it wasn't coming out. It was the same on the hot cam, dowel is stuck inside.
What ill effects will I encounter from using a dowel pin that is too short? I plan on taking this motor back apart in the fall, I just need it running asap for the summer.


For the hub,
I used the screw that holds it on to get it most of the way on. I was using an impact wrench since I was alone and didn't have anyone around to hold the crank from turning.

 

I imagine if the dowel is too short it could chew up the opti slot and mess up the timing. If the dowel is too long it will eventually ruin the opti bearing and the opti will fail.

To get the hub on, I used a bolt a few inches longer than the oem bolt and used an power impact wrench to carefully "pull" it on. I lubricated the inside of the hub and installed a keyed hub (not the oem one)

That pressed on LT1 hub can be a bear the first time you try to tackle it.

 

Half inch longer crank bolt, found at Napa, they will know SBC thread, or bring numbers for them, can post if needed.

Get a long wrench, and use 2 bolts for the hub to hold this wrench in place on a jackstand, and there is your helper right there. You probably know, but you are not supposed to hammer on the end of the crank.

 

The bolt needed is 7/16inch, 20 thread

 

How long is the stocker? I'm gonna be working on swapping my cam this weekend and would like to know

 

I think you will want a 3", or heck maybe it was 2.5."

www.go-fast.org , look in the Camaro section and go to the damper install, then control + F and type in thread and that should pull it up.

 

Cool, I'll give that a shot and see if I can get it on all the way.

I am still debating the dowel pin. I'll see if I can get a slide hammer and get them out with that.

thanks

 

The oem is a hardened bolt with an uncommon (.874 OD x .450 ID x .311 thick) size washer. The bolt measures 7/16" x 20 x 2.125"

I almost forgot to add that it uses a 5/8 socket and you TQ it to 75lbs...have fun.