... A blown big block.

Well, that's what this woman wants anyway. And sorry, I am not currently taking additional marriage proposals. smile.gif

In about a year I am planning on doing a major teardown/rebuild of my 69. Part of the plan is to drop in a big block. And I want it blown. I all ready have a 454 waiting patiently in the corner for this swap (with the NOS motor mounts). Don't waste your time telling me I don't need a blower for a cruiser. I all ready know that. :D I just need your help in figuring out the best and most cost effective (not necessarily cheap) way of making this work.

I am in the planning stages now. I want to develop a plan and stick with it, so I want to spend a lot of time on research to make sure it gets done right the first time. I want this to be a "clean" job when done.

The car currently has ps and pb on the front. I'd like to keep those nice touches as well as throw on some aftermarket a/c if possible. What I am looking for is :
* good engine combos any of you may be running at this time
* any problems to watch for specifically: ie: bracket issues, etc.
* a possible way to make all of this fit under the hood. I want to be sneaky.
* pics of your set ups
* good reading material

I've all ready started working my way through the archives here. I would appreciate any additional
input, hints, tips, or tricks that you have.

Thanks

Check out the article in Super Chevy HERE (http://www.superchevy-web.com/tech/0309_sc_blowin/) on a Vortec Supercharger they installed in a 68 Camaro.
You are talking at 6 lb boost over 140 additional horses. Not sure why you would need the 'big block'. I personally would stick with a small block as to keep the better handling characteristics because a 383 could easily put out 600+ HP using a centrifugal supercharger!

"Not sure why you would need the 'big block'."

She doesn't NEED a big block. She WANTS it. Nobody NEEDS a Vortech supercharger, either.

I would stick to a centrifugal supercharger to keep it under the hood, if that is still possible with a big block. Now that I think of it, I've only seen this huffers on a small block, never a big block. May be a reason for that.

Hi Angie,

Glad to see that you want a BB just like I want mine.

Heck, really don't need anything better then my 3-banger commuter corn-popper, but what the hey!!!

Good luck with how it turns out.

pdq67

A centrifugal blower is the way to be sneaky, under the hood and not noisy. Be sure to spend plenty of time planning a drivetrain that will handle that nasty big block also. As far as accessories, Alan Grove Components makes some really nice brackets to mount them, alot of street rod guys use them. Good Luck, Brent

Angie,
Two things come to mind. 1. Cooling. Aluminum heads will help...some. Aluminum radiator (a big one) Lincoln Mark electric fan (watch clearance), high flow pump, etc. 2. The cops. Having a roots type blower sticking through the hood can be described and a vision impairment. Check with the local constables.
I have a couple of friends that have blown big blocks and this is what they report.
Good luck with your project.

Here's a blown big block under the hood setup:

http://www.camcojb.com/

Angie, I like your idea :D stealthy blown BBC graemlins/thumbsup.gif Just keep in mind that it will make enough HP to put you well into roll cage territory at the track . . . even if you don't plan to race at the track a cage would be a good idea to keep your poor uni-body chassis from twisting into a pretzel the first time you get her to hook :D

I agree with the others that a Centrifugal would be the way to go - probably the Vortec setup that can use a carb (since you mention keeping the price down - fuel injection is big $$$$'s IMO). The only challenge when running a carb is the tuning . . . be prepared to have some major tuning sessions to get a nice clean (and safe) fuel curve for your BBC.

Personally I would look at keeping the compression ratio down and the cam fairly small. Like flat top pistons and open chamber heads would make right about 8.0:1. Then a cam designed for a blower like the Comp NX274h - 2000 - 6500 rpm - 230* Intake / 244* exhaust duration @ .050 on a 113* lobe separation angle.

Maybe someone that has built a blown BBC before can comment . . .

blown BB in building stages. (http://hometown.aol.com/badass69maro/) http://hometown.aol.com/badass69maro/images/tubing.jpg.jpg


like this Angie ?

Originally posted by angie rs/ss:
... A blown big block.

Well, that's what this woman wants anyway. And sorry, I am not currently taking additional marriage proposals. smile.gif

Tell 57 plymouth to look out, I'm coming for ya anyway! :D LOL tongue.gif

lol, Stevo !

Thanks guys for all of the tips and suggestions. I'll keep you posted, but we've got a long way to go. I think we've got some economic issues to work out too.

Angie,

I've been doing the same thing for two years now, mainly because of economical issues, yet to say the least, I did tons of research, lot's, lot's, wait one more time, lot's of money, but I now have everything except for a couple minor things. I actually have been craving the day I can stick up the pictures and details that went into my project and once a week arguing over the money that went into it with the family.

But, a quick story that makes me smile is I've had everything for the BIG BLOCK BLOWN CENTRIFUGAL ATI PROCHARGED CAMARO for about 7 mo. now, just sitting in my office all in boxes from SD Concept Engineering, they know me well now, and summit racing boxes, custom seats, new 12 bolt rearend, roll cage(just got that 3 day's ago), cam, canfield heads, the supercharger system, carb, etc. etc. all around the office, why is it not together? Well, because I want to do it all myself, but time has became such a factor, and with my brother and friends teasing me about when is it going to be DONE! It took a 10 days ago at a house party, some drinking, and enough teasing about, friends saying how there car has been done, and my car has been sitting for almost three years, I got pissed off and it happened. The very next day I called Pro-Tow and it is at my mechanics shop, will be there for about 4 weeks and will be compleatly done!!!!! I Am SO EXCITED about that story I just had to share it, sorry for the long note. What did the wife say,"Fine, just get done and over with! I just hope it ends here! LOL. I can post all my specs, what I actually got and where, and post some pics. here shortly! Thanks

Chris

Wow, Chris !

That's great. Yes, please post the pics and details when you get a chance. But most of all, enjoy driving it. graemlins/beers.gif

Angie,

The title threw me off or I would have been here sooner! :D

I think the centrifugal is the way to go also. Everything fits under the hood and you can make as much power as you want. You also can easily retain all the power options, including A/C if you choose to.

Scott at SDCE mentioned above, is a good guy to deal with. He can get your parts list squared away and offers the kits for less than direct through ProCharger. His number is (401) 732-4047.

I've done four of these Procharger deals, both carbed and EFI. I used Scott for the carb mods and they run as smoothly as the EFI versions. Here's a small block version I just finished for a friend. He just swapped from the carb to EFI.

http://www.camcojb.com/files/dons_ss0002.jpg

Jody