Supervisor42

Just for you, I'm going to shoot a "ride along" video of these antiquated, hacked up, old hunks of iron in action...I'll have to hurry since it won't stay together for a year...
Till then:
http://www.youtube.com/watch?v=6RpkfF-IiVY

Streetiron85

Unfortunately, that wouldn't load... I was looking forward to it.
Your car???

I don't need to be convinced of the potential for fun using a set of old factory iron heads tho.
I have a set of ported and otherwise reworked 041s that I've been using since the 70s.
I've never had those heads flowed, I just know that when I put them on a 350 block, it runs stronger
Too bad they're on my truck now... My car is down.

I've seen some of the flow tests that are posted on various sites but in most cases the test heads are all from different shops, tested on different machines.
I think it would be interesting to see some flow #s of different factory heads that are all ported and tested at the same shop.

Soon I hope to have a different set of HP heads to replace the old 041s as my new favorites.
I picked up a set of LT1 heads that I'm doing a number on, to retrofit to the SBC1 block.

Supervisor42

EDIT: I fixed this:
It is (no longer) a Quicktime movie. You have to have Quicktime to play it. (not)
You can get it for free here:
Quicktime Movie Player
My camera shoots this format and I haven't got a converter to put it in .MPG yet. (I have now)
My car is kind of a nostalgia thing with the engine. All the way down to the 108` lobe separation on the cam, I just like to hear the music of a good old high-compression engine from the early 70s. Install the player and take a listen...
http://www.youtube.com/watch?v=6RpkfF-IiVY
Better clip of it in action to come, before I muzzle the exhaust.

Streetiron85

I've got Mac OS-9... it'll load MPG but not that newer quicktime.
Oh well...
I'll just put on some Aerosmith or Nugent and project myself back to my high school days, and try to remember what it was like...
Aaahhhh... the sweet smell of Sunoco 260, thrush mufflers, and a Clay Smith Cams decal on the back window!

lilbowilson

iTrader: (2)

Daaaamn! Streetiron85 that engine sounds MEAN you need to find a way to hear it! Sounds even better than mine! Supervisor42 whats the specs on that cam and how high is your compression? Let me know how it performs when you get it on the road. Also is your cam hyd roller?

Streetiron85

Maybe I'll go to the computer lab tomorrow and try it.
Autocenter sells 109*lsa hyd roller for only abt $80.

Supervisor42

Remember this thread is about camel-hump cylinder heads.
Read my first post in this thread about combustion chamber shape.
I like underrated hardware. Did I mention that it has a Quadrajet on it? nearly stock delco HEI distributor?
Pistons: TRW LF2304 forged 11:1 with moly rings.
Cam: 280 HL. Hydraulic flat tappet, duration 280` at 0 lift. 224` duration at .050 lift. valve lift with 1.5 rockers: .465 intake & exhaust. lobe center: 108`
It is streetable if you don't pump the brakes more than twice.
Compression is 11.1 to 1, runs on 93 octane with lead substitute and some "special" things, like the heads, under-idle solenoid etc.
I've had it on the road with just the turndowns on it and it screams at 6700. As I said in a previous post, "ride along" video to come...

Supervisor42

As I promised: Crappy in car video.
Still working on the "too-early" 2-3 WOT upshift....
And the "too-late" 1-2 WOT upshift. You can hear it bounce off of the Rev Limiter set at 6700 in this clip.

Hull Mike

Ive got a set of 882's with small valves.I also have a set of 186's and the 882s are cleaner they have smoother and better shaped ports for the water passage ways the. insides of the ports are bigger than the 186's. even my 305 heads are bigger than the 186's. the 186's are old skool which isnt bad they have smaller combustion chambers for higher compression. but the craftsmaship is cheap. Im using my 882 on a 400 small block bored 60 over which equals out to 412 cubic inches of neck snapp with flatop hy duty pistons. a crane cam 454 intake and exhaust lift 272 duration int. and exh. with a holley 4165 650 double pumper. the fact that they have small vavles is good for me because this is going in my 1982 Camaro MS (Mike Special) which will have no problem getting going and im going for gas mileage rather than power. it will also be a lifted Camao becuase I live in Montana and with speed limits not over 75 and rocky mountain roads. this car is not a race car its a Mountain climbing car so I can get to my hunting spots.

Jim85IROC

iTrader: (2)

Since this got dug up anyway, I've got some info to add about running camel hump heads in a thirdgen. I ran a set in my IROC for about 10 years. I used the stock 85 v-belt system and long water water pump. All I needed to do was use a spacer on the driver side in order to run the stock exhaust manifold stud that the power steering pump mounts to. I just omitted the power steering pump bolt that goes into the head. For the alternator, the only issue was that there's no way to mount the rear mount, so I ran a bracket from the header bolt to the back of the alternator. I ran the car that way for 10 years. I never had any belt issues at all.

As for power, the 461s don't impress me. I made 250 rwhp with a 214/224 cam, accel base, slp runners, headers, throttle body, blah blah blah. Right now the motor is out and getting vortec heads. I can't wait to see the difference.

I also have a set of 882s that were on the 350 core I started with. They work fine. The door I'm holding open with one hasn't moved in years.

eric17422001

Those were the best availible heads in the days of a factory 14 second quarter mile musclecar. The modern LS generation engines make so much more power that we have all become jaded as to what is "fast".

I still have a set of good 882's with about 15,000 miles on a hot tank, valve grind etc that I pulled off the lo buck 355 combo in my S10 in favor of some 081 casting 305 heads to boost me from a measured 8.5:1 to 10:1 which worked well (don't lug it on the street though, and no more boat towing!)

I'll craigslist 'em to a local dirt tracker, they're still running the battered old Monte Carlos etc and have to run those castings, which the machine shop guy says are getting hard to find uncracked.

FNFAL308

iTrader: (1)

I had a set of double humps back in the early 80s on a 350, victor jr, 850 holley, on so on and so forth. Loved them and if I had some I would run them. I would not go out of my way to buy any now unless they were cheap and rebuilt and had bolt holes.

Now my memory could be off a bit, but I want to say I have also had a set of double humps (that were not the round humps but called that. want to say they were square shaped humps) that had the bolt holes. small chamber 2.02s. But I could be wrong

InfernalVortex

iTrader: (4)

Great idea using heads that made 200hp 400 cubic inch smallblock possible!

Even stacking the whole deck in your favor, a moderately powerful v8 with factory castings is hard to do (even with a 400). You're gonna sacrifice streetability or power one way or another. There are very few factory castings worth wasting your time with, 882's are not one of them. Neither are camelhumps unless you've got a car that came stock with them.

project89

iTrader: (1)

882's + boost ftmfw
i know a bunch of cars that use them with turbos and some of them are over 1000hp
for an n/a build though spend the money on a set of vortec heads

iroczracer07

iTrader: (2)

Just wanted to point out that 882's from the 80's also had a truck variant with much smaller valves in case somebody wants to buy some of them. I disagree with Sofa on one point. The 882's would be useful if you wanted to experiment with porting heads yourself...