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69Goat1 · 05-25-2009, 02:50 PM

Late to the Party but I am putting a 671 on my 462 in one of my 69 GTO's. I pulled the intake last week to install the blower intake and found that the new BDS Blower intake wouls not bolt up without milling for both the intake side and the Valley pan that came with the blower intake so it is slated for machining as soon as the shop has a spare minute... hopefully this week. This setup was made to run with a balancer so I have lower stock pulleys then the hub spacer and then the lower blower pulley.

Here is a mockup I did on a spare engine...

SupergasDil · 05-25-2009, 07:44 PM

Looking good man. The Blower Club is fun.

69Goat1 · 05-27-2009, 10:15 PM

Does anyone make a Blower intake for a pontiac other than BDS or Don Hampton? I have a BDS and so far I am not impressed...

I called Dyers and they said theres was a BDS intake and Superchargers USA is a BDS intake...

Brian Baker · 05-27-2009, 10:24 PM

Quote:

Originally Posted by 69Goat1

Does anyone make a Blower intake for a pontiac other than BDS or Don Hampton? I have a BDS and so far I am not impressed...

I called Dyers and they said theres was a BDS intake and Superchargers USA is a BDS intake...

Nope...but you may be able to find an Offy (which is a "tunnel ram" with the plenum cut off and a 6-71/8-71 blower plate welded on).

What is it about the BDS intake that doesn't impress you?

Blown 69 · 05-27-2009, 10:33 PM

I don't care for the BDS intake either. I bought one and I am thinking about selling it. I'm looking into using a Gutsram intake with a plate to mount my blower.

69Goat1 · 05-27-2009, 10:36 PM

Quote:

Originally Posted by Brian Baker

Nope...but you may be able to find an Offy (which is a "tunnel ram" with the plenum cut off and a 6-71/8-71 blower plate welded on).

What is it about the BDS intake that doesn't impress you?

Lets see... remember uncut block and uncut E-heads - absolutely would not line up with the intake bolt holes could only see the top 1/4 of the hole on either side with No Valley Pan and No intake gaskets on it. With intake gaskets and Valley pan that came with the intake it sits right on the valley pan lip and makes it even higher. I tried it on 3 different uncut engines - same on every one so it had to be milled .100 of both sides and below the ports for the Valley Pan as well as at the top for the Valve covers as it would accept no lip whatsoever on a valve cover and it sits way too low... for starters...

Torment · 05-27-2009, 11:12 PM

Maybe you got a bad piece?

Was the port alignment good, or was it also too high? We're you using the flat steel valley tray they send out or a different tray? The only tray's that will fit with mine are the flat trays - be they steel or aluminum. I never run a valley tray gasket however - just Right Stuff silicone.

69Goat1 · 05-27-2009, 11:16 PM

Maybe I did, I don't know. Port alignment looked good initially but of course now it is off with the intake mill a bit...

Brian Baker · 05-28-2009, 07:56 AM

I agree with Torment...sounds like a "bad" casting. Gotta' run a flat tray too. Mine is an older one that is used (was on Mike Cooper's car at one point), I had no issues like you had.

69Goat1 · 05-28-2009, 10:37 PM

I prefer used intakes... someone has already done the fitment stuff before you get it... mine was brand new and I pick it up tomorrow from the machine shop and over $100 worth of milling

Brian Baker · 05-29-2009, 07:49 AM

Well, unfortunately the BDS intake is the only readily available "true" blower intake for the Pontiac. Everything else is either an afterthought (like the Offy) or a custom deal.

BRYN-THOMAS · 05-29-2009, 11:25 AM

Yeah sounds familiar, had to take .060 off intake faces to align, used aluminum valley tray as it was thinner than compressed thickness of felpro intake gasket, checked with feeler gauge after fitting. Tray fitted with sealant no gasket, has been fine so far.

69Goat1 · 05-30-2009, 01:11 AM

Well it was $200 in machining but now after having it machined on 3 planes (Intake, Valley Pan, Valve cover clearance) it is good to go... Even busted it off tonight - these things are just plain WICKED!

GTOGEORGE · 05-30-2009, 02:30 PM

69Goat1 Quote: "I pulled the intake last week to install the blower intake and found that the new BDS Blower intake would not bolt up without milling for both the intake side and the Valley pan that came with the blower intake so it is slated for machining as soon as the shop has a spare minute... hopefully this week."

I had the same problem with the alignment problem, called BDS to complain and they said they never had a complaint before .................now this was back in 1995 or so. (probably weren't selling a lot of blower intakes back then)

The intake does seem to work though!

GTO George

Steve Barcak · 05-30-2009, 03:30 PM

Glad you got your intake figued out. Not sure why others here have not told you but, anyone can easily use an early, pre '65 blower intake with later blocks and heads.
The M/T is most common but Edelbrock, Weiand and others made them too. The ports and most of the bolt holes are in the same place. You just have to make a simple water cross over for the front if you are using for a street application.
I have 3 early M/T intakes. I use one on my 389 AA/Fueler with highly modified Wenzler Super Chief heads and the other 2 with Edelbrock heads.
Your motor looks good. I only hope you are using a forged crank. If not, take it easy with it.
Good luck,
Steve

blown 68 · 10:22 PM

i am running the offy conversion, it's quite a bit taller than the bds, and the blower sits further back, making distributor tweeks a breeze.

it can be done, but it ain't no easy task.....

i had an option when buying my setup, he was either going to order a bds, unpolished, or sell me the offy, all polished, with aluminum skirts made for it to hide the manifold and flange, for the same price. i chose the offy, becuase it was there. i didn;t realize the size difference until later, but, i like the tower of power look. i ended up having to add a billet one inch plate too, to clear my distributor. so, it's quite a bit taller than a bds setup, i would say a good 4 to 5 inches easy. and further back, which makes for a long blower snout, after clearing two groove factory pulleys, it's out there. but, no problems yet, so, it's how she stays.......

here are shots of it without the cover plates, with, and together with the spacer, and my snout length.....

the guy in the middle is my uncle, larry, my partner in the car. the guy on the right is my dad, and i am on the left....... putting the motor back in for the 6th time.

davey

69Goat1 · 05-31-2009, 01:41 AM

George - $200 worth of milling and welding finally fixed mine

Steve - It has a Factory N Crank in it so I plan to take it pretty easy on it...

Blown 68 - Thanks for the pics and story on your build - it helps alot to see what the difference is in the Offy and the BDS deal. The things that are good about the BDS are it is easy to get to the distributor - bad is I will have to pull the blower/intake to change the thermostat

Yours is way up there and I have no idea where you found someone to sell you the Offy at the Same Price... Don Hampton wants $950 and said nothing about the side skirt deal... BDS is $600...

I like your pulley set-up for the crank and water pump - where did you get them?

blown 68 · 02:01 AM

yeah, you pull the blower for the thermostat, i pull it for the distributor.........(well, i have is set up where i can get it in and out in one position only, but the housing has to go EXACTLY in a certain position, so i can adjust timing, and not hit anything with the vacuum can.... yes, i run vacuum advance, and it works awesome........)

believe it or not, the pulley system is all factory, just chromed! with a bop alternator bracket that is chromed as well. (it actually broke, rewelded it, been fine ever since....) stock power steering brackets, chromed as well. bds snout idler bracket. i know some people on here don;t like the snout setup, but it's been flawless for me..........

i paid $500 for the manifold and skirts, the bds was the same for unpolished, $600 for polished, so i went offy, and had it that day. oh, and it bolted right up, no problems, with a butler flat valley pan.........

i have learned alot, if ya ever have any questions, or want to share/trade knowledge. sorry for not knowing the history of your blower car better, i have been gone for awhile......

davey

stimpy · 06-01-2009, 05:33 AM

I am very late to the party , live down the street from Dyers , been thinking more of doing it since I hear a local guy fire up his alky funny car every other weekend , I think it will be a cheaper way of making power than trying to bump up compression

Brian Baker · 06-01-2009, 07:51 AM

Quote:

Originally Posted by Steve Barcak

Glad you got your intake figued out. Not sure why others here have not told you but, anyone can easily use an early, pre '65 blower intake with later blocks and heads.
The M/T is most common but Edelbrock, Weiand and others made them too. The ports and most of the bolt holes are in the same place. You just have to make a simple water cross over for the front if you are using for a street application.
I have 3 early M/T intakes. I use one on my 389 AA/Fueler with highly modified Wenzler Super Chief heads and the other 2 with Edelbrock heads.
Your motor looks good. I only hope you are using a forged crank. If not, take it easy with it.
Good luck,
Steve

Steve, we didn't tell him because these intakes are almost never for sale, and when they do come up for sale, the seller thinks they're worth a small portion of Rockefeller's fortune.

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