Speaking of hot cams

[dremu]

http://www.compcams.com/Technical/Search/CamDetails.asp?PartNumber=11-239-3

Apparently my new-to-me motor has one of these.

Not knowing a cam spec from a kumquat, is this like a high-RPM wheel-spinning sort of thing, or a low-end grunt torquey kind of thing?

-- A

 

[ryan22re]

Looks like an in-between cam to me. May be the best of both worlds. I assume this is for the 454?

 

[73k5blazer]

You got a new motor? For your Crew?

 

[HarryH3]

It doesn't look like it's designed for towing. I found this on their website:
[FONT=Arial, Helvetica][FONT=Arial, Helvetica]"Best with improved intake manifold, needs headers and 3.55-3.90 gears and 2000+ stall." [/FONT][/FONT][FONT=Arial, Helvetica][FONT=Arial, Helvetica]It's not recommended for use with the stock torque convertor and doesn't start building power until 1,600 RPM. :-( Take a look at their cam info for big blocks here.

That engine will be a blast to drive once the cam hits the sweet spot, but it probably won't be the best choice for towing heavy loads. Give the tech line a call at Comp Cams and talk with them about your truck and what you want to do with it. They can then recommend a cam that meets your needs. It's WAY easier to swap the cam now, before the engine is in the truck.
[/FONT][/FONT]

 

[4X4HIGH]

Not the cam you want for towing. For a towing application comp cams 11-231-3 would be best. What year is the rig it's going into? If it needs to be smog friendly then you need to watch out what cam you choose.

 

[dremu]

Not the cam you want for towing. For a towing application comp cams 11-231-3 would be best. What year is the rig it's going into? If it needs to be smog friendly then you need to watch out what cam you choose.

'74, so thankfully, no no smog

Yep, it's for the sixpack. Dangit, I was hoping to have this truck together this month =)) ... this stuff never ends!

-- A

 

[RootBreaker]

personally it depends on what you want to do with the truck...

1600rpm's is steep for towing..


I was going to go with the comp cams xtreme 4x4 roller cam
http://www.compcams.com/Technical/Search/CamDetails.asp?PartNumber=12-411-8

but that one didnt start making power till 1200 rpms and I wanted idle - 5k so I went with this...
http://www.compcams.com/Technical/Search/CamDetails.asp?PartNumber=12-409-8

 

[Zeus33rd]

Hmmm...

Where ya getting the motor from? iceman?

 

[imiceman44]

Hmmm...

Where ya getting the motor from? iceman?

Yep

 

[imiceman44]

Not the cam you want for towing. For a towing application comp cams 11-231-3 would be best. What year is the rig it's going into? If it needs to be smog friendly then you need to watch out what cam you choose.

Will that cam work on my 396/402 BBC?
It's going in a 70 2wd pickup that will be for cruising and show.
If so then I will take it Aaron and I will get you the cam of choice for the setup you need.

 

[dremu]

Hmmm...

Where ya getting the motor from? iceman?

Sound familiar?

Iceman, I'll pm ya.

-- A

 

[WantedaDodge]

that cam's a little big for a truck imho, especially if it's not like 9.5-10:1 CR. Power brakes may even be effected. I'd swap something a little milder in unless you really need the horsepower.

 

[dremu]

that cam's a little big for a truck imho, especially if it's not like 9.5-10:1 CR. Power brakes may even be effected. I'd swap something a little milder in unless you really need the horsepower.

Power brakes? You mean *vacuum* boost? (The truck has hydroboost.)

But yeah, it sounds like a great street, grumbly-exhaust, tire-chewin' monster ... which is not me.

And thanks Iceman, I'm looking for to my package from Summit, and your brother should enjoy this cam

-- A

 

[Zeus33rd]

Ha! Thats pretty cool. Atleast that motor is going to someone who will approciate it. It was installed in my '83 K20...former 6.2 truck with a 465. It also had hydroboost, and no torque converter worries. It was fuuun to daily drive it. No problems shredding the carp out of 35" BFG AT's even with 3.73 gears. I had to install different valve springs for that cam too....so if you switch it out, you'll mos likely need new springs. The timing set and lifters are also new comp cams stuff.

 

[Zeus33rd]

I have the desktop dyno screenshots on my other computer. Soon as its fixed, I can send them to you.

 

[dremu]

Ha! Thats pretty cool. Atleast that motor is going to someone who will approciate it. It was installed in my '83 K20...former 6.2 truck with a 465. It also had hydroboost, and no torque converter worries. It was fuuun to daily drive it. No problems shredding the carp out of 35" BFG AT's even with 3.73 gears. I had to install different valve springs for that cam too....so if you switch it out, you'll mos likely need new springs. The timing set and lifters are also new comp cams stuff.

Well, my sixpack is not so likely to chirp the tires

New springs duly noted.

-- A