New cam showed up today.....

[Samckitt]

Now time to tear the LT1 apart to remove & replace. I am shooting for getting it done in a night, not sure if I am going to try to do it tonight or tomorrow.

[70fireturd]

nice whats the specs on the new cam or is it the cc306 you have listed?

[Samckitt]

No, CC306 is existing cam. I have gotten tired of the surging while driving. Wide open is a blast, pulls hard to 6K & beyond. I bought one from Lloyd Elliott, 223/230 .565/.565 112 LSA. It has higher HP & torque numbers up to a tad over 6K where the 306 cam passes.

[Scott Parkhurst]

Don't rush- take the whole 3 day weekend if you need to. You know you'll see some other stuff you'll want to clean, paint, or fix while you've got it apart. Relax, do a good job, and don't be in a hurry!

(PS- Touch base with TPIS - they've got a slew of new LT1/LT4 stuff you'd probably be interested in!)

[Samckitt]

Other than the cam, what I want is to get my AC working. Now that summer heat is here.

[AintQik]

Lol last time I put together an LT1 the guy "helping" forgot the water pump drive. That was a long time ago. Isn't there a gear or something behind the distributer that drives the water pump? For some reason I forget how that works and I can't picture it in my mind. But, from what I recall you kinda needed that.

Good luck with the new cam and if you can take your time. Nothing can make a good time like changing cams not fun like rushing and forgetting.

[Samckitt]

DOH! Yep, the gear on the front of the cam has teeth for the chain, & teeth of another gear that spins the waterpump. I took mine off & use a normal double row chain & put an electric motor on the water pump.

[MonzaRacer]

Scott do your self a favor and swap in a new melonized gear on the oil pump drive , I find they do need changed, it same as melonized gear for distributors running on factory rollers.
big tube of silicone, new thermostat/coolant, all gaskets. if its FI replace the injector orings while apart.

[Samckitt]

I'll look at the gears & put one on. In the mean time, I am having a h3ll of a time getting the damper hub off. Gave up for the night.

[Samckitt]

Got the damper hub off & get alot done, put the cam in, then went to put the cam sprocket on, & discovered the dowel pin is too short to drive the optispark. So I called cam company & he told me how to get the pin out, & he is goiing to mail another pin. What a pain in my behind.

[Ricoch3T]

I was thinking bout downsizing the cam in my lt1 also. mine is 230/230 .603 lift with the 1.6 rockers.
The surge isn't BAD but noticeable. Feels like it pulls good up to around 6500.

[Samckitt]

Existing cam is the comp cams 306, 230/244 .510/.540 with 1.5 rockers. Going to 223/230 .565/.565 with 1.6 rockers.

[Samckitt]

Got the new cam installed, started right up, but immediately idles at about 3K. Hopefully that is because the PCM is still tuned for the Comp cams 306 cam.