Hemi horsepower

For you all who have 346cid with automatic transmissions and have a G5X3 camshafts, what rpms are you spinning to and what is your torque converter stall?

JoeNova

That's not a very big cam. Even though they won't give the cam specs, I don't imagine you'll be spinning it much higher than stock and converter choice will be whatever you want to deal with (people run 4000 stall converters on a stock cam, so yeah).

Hemi horsepower

Big is subjective. I will say that the G5X3 cam is very healthy and probably close in the neighborhood where a small 346 wants with 11.5:1 compression or less naturally aspirated. Specs are available via search on this forum. Its a good cam.

JoeNova

If you're so knowledgeable with the cam, why are you asking questions?

HCI2000SS

iTrader: (2)

A quick search shows 234/242 duration and either 112 or 114 LSA.

Hemi horsepower

Because I don't want to be ignorant. If my question and reply irritated you, I apologize. It's all good!

JoeNova

The cam specs I found were 226/228.
It doesn't help that the manufacturer won't give the cam specs on their website, I guess that's how bad info starts.

Good to know.

HCI2000SS

iTrader: (2)

Yeah I hate when they do that crap, when just about everyone else lists their specs. Definitely causes more problems than it does to help the consumer. My info could be wrong...i just searched it and several threads seemed to agree on the listed specs so who truly knows lol

Hemi horsepower

I believe that you are right. Every thread that I seen confirms those specs of 234/242 @.050 .600"/610" on a 112 but i think you could've gotten it on a 114 as well. Just was curious to what rpms people are turning their cars to with this cam and what stall of their torque converters.

A.R. Shale Targa

iTrader: (2)

I thought this stick was very popular back in the day with AFR 205 headed 346 inchers that needed thin head gaskets to help get the static compression up
I would imagine it could turn 7 grand with good valve springs and push rods
And IMO a 4000 stall would be preferred in an LS1........LS2 could prolly get by with a 3600

Hemi horsepower

I waiting for comp to send my cam. Though not a G5X3, it has very similar specs except i got XFI lobes. 234/242 @.050 .596"/.595" on a 112 LSA +0. I'm leaning towards a 4000 stall myself.

A.R. Shale Targa

iTrader: (2)

Check with some cam guys....but seems to me that intake lobe closes about five degrees too late for a 346"

Hemi horsepower

I'm not using a single plane intake so I should be ok.

Hemi horsepower

Then again, i have an adjustable timing set so i can check ptv clearance and perhaps advance it 4°. But i should be ok either way

HCI2000SS

iTrader: (2)

I agree with the above statement that a 4000 stall and spinning to around 7000 rpm. Also, depending on what rear end gear you have, you might wanna upgrade that as well

Hemi horsepower

Ok great....then a 4000 stall it is then.

HCI2000SS

iTrader: (2)

What rear gear do you have?

Hemi horsepower

I have 4.10s

HCI2000SS

iTrader: (2)

Gotcha. Obviously you'll have more than enough gear with that cam then

Darth_V8r

iTrader: (4)

Run 12:1 compression with that for best results. Beefy pushrods also.