Jay, when you showed that bracket I got to looking at what was available on ebay. It seems there are some manifolds out there that have the collectors leaning like the Nova manifolds do but no provisions for the alternator mounting. The collector neck seem to be longer than the Gen I & Gen II Novas. There are also some that have the collector leaning back which have the short stubby mounting on the front of the LH manifold (3855183) to use the brackets that I was showing. I think. That was the reason I posted those brackets because they looked like they would fit that type manifold. Of course I can't say for sure.
This whole thing about exhaust manifold for the 1964-67 Novas is very confusing. Especially when trying to piece together a LH-RH set. There are a lot of manifolds available but not for the 64-67 Novas. I will be using the short water pump so that clouds the issue even more.
I was looking at the 1967-72 truck manifolds as a source but have been finding a lot of conflicting comments on the internet about the truck manifolds. Some say they will fit find and other not. One main concern was that the truck manifolds 45 degree collector was made to lean out slightly because there was more room inside the truck frame and to help stop interference with the starter. Whereas, the Nova manifold collectors leaned in a little more because of the frames being so close to the exhaust pipes. I can't prove that. Just repeating what I read on another Nova site. Maybe someone that has an engine installed in their Nova that is using the truck manifolds can post a photo of the clearance in those areas.
I have found that if I am going with the GM manifolds then the '65 Nova non-A/C manifolds would most likely be the 3790729 LH and the 3890424 RH manifolds with the 424 manifold having the heated air type choke system.
But there were also some Novas delivered with the 3790729 LH and 3790730 RH combination. I haven't found out any info as to why they changed the RH from a 424 to a 730 manifold except I do know the 730 was mounted on a 2 barrel 283 engine which had the divorced choke setup on the intake manifold.
The GM 3849288 exhaust manifold from a 64-67 327 is suppose to fit. I haven't seen a 288 manifold that has the heated air choke tubes installed so I have to assume those manifolds were used on engines that had either divorced or 12 volt choke systems.
The following is a list of manifolds that are suppose to fit the 283, 327 and 350 engines: 3780728, 3790729, 3790730, 3791130, 3849288, 3849290, 3872723, 3872738, 3890424. Please tell me about any part number that you think is not correct. This info came from:
Chevy Exhaust manifold Identification - Chevrolet Ramhorns
I'm sure there are many guys that would like to get all the facts about what will work and what will not. I'm wanting a nostalgic look so using the rams horn exhaust manifolds are what I am going after.
Anybody want to comment?
Sam