[greg7764]

As I am about to replace the intake manifold gskts. on our C/A we noticed that the intake is date coded L160 (12/16/70). Was wondering if this could be the wrong intake. Have found a 1/76 manifold that has a EGR valve and the heat tube for the carb. choke that the current manifold lacks. Just want to know before I mess this up and install a manifold that isn't correct. Thanks to all who reply.

[billygoatii]

What are you trying to accomplish? Are you looking for a correct date code manifold for shows or more of a performance type application? The 1/76 would be closer to correct, as far as date code; but is still wrong for the CanAm (The 1/76 intake would be correct except for the date code). The non-egr 12/70 (1971 model year) intake would be better for performance.

[greg7764]

Trying for as close to original as possible. As you might be able to tell several things are not hooked up because of this manifold. Carb. choke tubes, exhaust manifold restricter for crossover, etc. We want would like to show this car, its unfortunate that someone robbed the original parts.

[billygoatii]

The 1/76 intake would then be the better choice for you. It would have the wrong date code but be visually and functionally correct otherwise. I am planning to hop up my CanAm in the future. All the stock pieces will be saved so that it can be restored to original though.

[WW3]

I may have an extra correct '77 intake if your interested.

[greg7764]

Was hoping 77 Canamman was going to weigh in on the date codes on his intakes. Maybe its pole nite at the local club.

[WW3]

Originally Posted by greg7764

Was hoping 77 Canamman was going to weigh in on the date codes on his intakes. Maybe its pole nite at the local club.

He will...BTW, I didn't realize Rick was a stripper!

[greg7764]

Not that I know that for a fact, just going off his profile, LOL, SEE FOR YOURSELF!

[WW3]

I do have 2 intakes: one is date coded C267 the other is F106, both are part number(s) 525355...if you're interested.

[77 Canamman]

Originally Posted by greg7764

Maybe its pole nite at the local club.

It's tough doing what I do...

[greg7764]

Went ahead and installed the 76 manifold this week, now I'd just like to see the under hood vacuum schematic so that I get everything tubed in right. Surely there is someone out there with a camera phone that could snap a photo and send it to me. Man, this car sounds sweet! Figured out the vacuum routes for the internal HVAC so now it has vent doors working inside. Should get the Turn signal handle back from the welders shop tomorrow after he repairs the break. A/C repair in the future after I can find a receiver/dryer that looks like the original. We are still looking for a new/good used fan shroud, anybody seen one lately? Thanks all........... Greg

[Ron Landis]

. We want would like to show this car, its unfortunate that someone robbed the original parts.[/QUOTE]
I don't believe anyone "robbed" your parts because they were original. They were trying to make the car perform better by eliminating the smog BS. Those intakes should be a dime a dozen. I believe I know of some being used for wheel chocks. No kidding! I've never seen anyone remove a '67-'71 intake to install a smog piece. If you don't find one, let me know. I also have some printed material left over if you'd be interested. Some magazine and dealer promo stuff. Good luck. Ron

[greg7764]

Thats just the thing, I don't have a problem with high performing a engine, but the 70 intake will not work on a 77 head. The exhaust ports on a 70 head are large rectangular holes. The exhaust ports on a 77 are smaller square holes. The manifold that was on the car had a massive exhaust leak on the right side. Someone tried to weld extra material into the intake port (not a pretty site and broken loose) and filled the cavity in the head above the exhaust crossover with some substance like JB weld that I had to chisel out! The 70 intake also used a divorced choke whereas the 77 used a heated air drawn through a heat tube running through the exhaust crossover chamber. So now at least we have a working choke system on the car, which was one of my main concerns. Could have just used a electric choke but was against using something that wasn't on the car originally.

[greg7764]

Originally Posted by 77 Canamman

It's tough doing what I do...

So are your intakes orginal or performers like jegstec talks about

[77 Canamman]

Mine are original. There isn't a whole lot of difference in flow between the non EGR, the 1973-1974 EGR and the 1975-1979 EGR intakes. The so-called restricted secondary EGR intakes from 1975-79 appear to flow less because of the shape of the secondary openings, but the flow loss isn't much.. The Super Stock guys are running them with good results.

Now if you are going to compare a Eddie Performer RPM, which will not fit on a Can Am unless you modify the crap out of the shaker, to a stock EGR intake, the flow is better with the aftermarket piece. The performance difference with a regular Performer is very slight...The main advantage is weight reduction.

On both of my cars, I run stock intakes with the EGR and the backpressure transducer valves present and hooked up, but I have disabled them using good old beebees to prevent their operation.

I have run a best of 15.30@89.5 with the stock parts, and a race weight of 4275. My old car, which weighed much less at 4080 race weight ran a 14.9@92 with the Performer, but ran 15.0's with the stock cast iron intake. You will not see a huge difference. You will find more power by recalibrating the carb and distributor, opening the shaker, and putting a great flowing dual exhaust system on the car.

[Ron Landis]

you are right about the differences...nothing you'd notice seat of the pants, anyway. I've talked folks out of Performers if they had a good '67-'71 intake..especially if they were retaining the Q-Jet. The Shaker becomes a mitigating factor on these cars. Spend the money on getting the carb tuned...preferrably by Cliff. I've heard that the smog intakes worked nearly as well...nearly being the operative word. Personally, I just cannot stand to look at them! lol Anyway, if you plan on showing the car, by all means make it right. Not gonna hurt your perfomance measurably, I don't believe. Ron

[greg7764]

Originally Posted by WW3

I do have 2 intakes: one is date coded C267 the other is F106, both are part number(s) 525355...if you're interested.

Thanks, I feel better now after having installed this manifold because I was worried that 76 might not have been used, although casting part number matched. Trying to talk the owner into showing up in Tulsa with his car. Booster/master cyl coming off this week to get rebuilt and refinished.

[greg7764]

Would hate to see anybody not use the q-jet carb. I havn't always been a fan of them but after doing a few rebuilds you get to know how valuable these carbs can be. last one I installed pri. shaft bushings into eliminating all the shaft play and making idle settings much easier to do.