Yes, I remember the red one.  Did you end up getting the build sheet for that one?  If so, were there any other LS5 wagons on the production sheet?  Did any of them show having N10?

using common sense i agree, but why would gm offer an LS5 if it did'nt offer more power over the LS4. and your right the build sheet does'nt show dual exhaust.

-- Edited by rarechev at 17:35, 2009-02-03

-- Edited by rarechev at 17:38, 2009-02-03

-- Edited by rarechev at 17:40, 2009-02-03

don't forget, the LS4 only came with a single exhaust, so even an LS5 with just a single exhaust should have offered more power.  I'm sure the power bands were slightly different, with the LS5 developing its horsepower at a higher rpm because of the higher lift cam and the carb probably being jetted differently, which would have made the LS5 better for high speed passing maneuvers and top end speed.

rarechev wrote:

---

using common sense i agree, but why would gm offer an LS5 if it did'nt offer more power over the LS4. and your right the build sheet does'nt show dual exhaust.

-- Edited by rarechev at 17:35, 2009-02-03

-- Edited by rarechev at 17:38, 2009-02-03

-- Edited by rarechev at 17:40, 2009-02-03

---

One thing we are not even considering is torque and I am sure the engines are different there too.

I know with my daily driver Deville has 275HP and 300 lb ft torque, the Concours optional engine with the same displacement and higher lift cam is 300 HP with 290 torque. Hillar's reasoning is valid, more HP for high speed performance.

The LS4 may well be a better choice for a wagon if it has higher torque at lower speed for towing and hauling. The other thing about dual exhausts is generally they move the torque curve hiugher up in the range which may be why single exhaust on wagons. Just some musings.

-- Edited by 73SC at 18:11, 2009-02-03

Well that clears it up

My listing from GM says less than 13 427 4spd cars  ( L36 M20) were built in 1967< so you could probably put that update on there. Has anyone got any data on L36 M40 cars for 1967 ?

1965 laurentian 75645 3 seat wagon number produced        683   wow

Ken

I dunno Andrew. All I have is that George states less than 13 L36 M20 cars but not sure if he is looking at 2+2 rags or what models or generally Pontiacs, i doubt it includes Chevys as their numbers would be greater for sure. I will send him an email maybe he will enlighten the situation ??

Hi guys a friend of mine just had his  66 custom sport convertible checked out by George and here are the production numbers he got;

Model number 76467 - 4784 produced (less than 150 with M20 4 speed)

ken 

76637-grande parisienne 8 cyl 2 door hardtop; I have a figure of only 130, 13 of which had the L36 427.



There has been discussion about only the single exhaust LS5 454 being offered for the wagons.


The 1970 and earlier wagons were not limited to a single exhaust system and could be ordered with the single exhaust LS4 and the dual exhaust LS5. I do remember the 1970 full-sized Chevy and Canadian Pontiac wagons coming with a funny outer heat shield on the tailpipe. The tailpipe was sort of crushed down to fit within a larger diameter pipe that flared out and encircled it. There was an angle cut on the lower part of the shield.

-The single exhaust LS5 was only offered on the 1971 & 1972 full-sized Chevy wagons.

-For 1973 the LS5 was dropped and the milder cammed LS4 came back and took over, now being equipped with dual exhausts except on the full-sized wagons.

-For 1974 dual exhaust finally made it to the LS4-powered full sized Chevy wagons, with both outlets stacked one on top of the other on the left side.

-For 1975 the catalytic converter meant single exhaust for all.

-In 1976 a Y-pipe branched into duals downstream from the catalytic converter. The wagons had duals again, but this time the pipes came out on both sides (the RHS must have been a tight fit between the spare tire well and the bumper). I remember seeing them all brand new. I saw a brand new '76 Bel Air wagon with a 454 on Manitoulin Island, towing an Airstream trailer. We were also passed by a new '76 Bel Air 454 OPP cruiser on Highway 400. We were going over 100 km/h and he passed us like we were standing still and he was going 140. Whoosh!





-- Edited by CdnGMfan on Monday 16th of March 2009 02:57:45 PM

Hey Carl:  I have documentation showing "less than 13 67 2+2 converts with L36-M20 combo"  I can send it to you if you need. I did check with GM and confirmed this number is referencing the 76867 model Pontiacs only.
take care & thanks !

-- Edited by Elroy at 11:58, 2009-03-07

Holy Moly! I don't know if anyone here has seen the online ad for this car, but it is a rare and oddball Canadian Pontiac for sale in Kansas. It is a 1967 Pontiac 2+2 coupe, 6 cylinder, 1 of 20! Here's the link: Posted until March 21/09

Now, rare does not mean desireable I know. The old sixes pull fairly well down low though but were almost always relegated to the base series sedans.

Check it out, factory Emerald Turquoise with RED interior. It doesn't look as bad as it really should. Personally I'd lose the BLING wheels (unless it had a Neilson Racing Engines 572 under the hood and some serious chassis upgrades).

I've been observing these cars since they were nearly new. I have seen 2 Parisienne 6's for '67 and no 2+2 with 6's.

If it were mine I would return it to stock (just changing the wheels would do it), but I can be a bit of a freak.  I did see a '67 Impala SS convertible on e-Bay back in 2006 that was stated as being 1 of 53 (in U.S.) My figures show 1 of 46.