Octania

I have no idea why the PN database used to assert that the '15336 intake was for injection. Rumor from sight unseen existence rumor probably. Now that we have photos, obviously a carbed intake. The things you see at each runner are the runner numbers, just like your intake, except, as with other experimental castings, this one's runner numbers were put in the mold by nailing little blocks onto the master. You can see the block and the teensy nails. Thanks for sharing the photos!

Octania

"The round openings at the side of the carb mounting base indicates it is for the W43 series. That is were the pipe from each of the exhaust manifolds bolted to the intake/crossover for emissions stds. "

I give up
what features are you referring to?

davebw31

Octania: Next to the mounting position for the divorced choke is a mounting position for an oval 2 bolt flange with another like it on the left side of the intake. The other end of these 2 pipes attached to the center port of both exhaust manifolds. The purpose of this system was two fold: 1) to supply heat to the crossover for carb. heating; and 2) recirculation of exhaust gases for emissions, thus eliminating the need of an EGR valve type system.


Please note that the manifold pictured in this thread is not the final production manifold, however very similar.


BTW: thank you for the info you provided. Hope to meet you at Lansing Homecoming in June, 2015.

Chesrown 67 OAI

And I now own this one and it is on my racing engine in my 67 W30 clone. My avatar pic
1

Chesrown 67 OAI

Yup! Just like mine, but it was originally experimental for a 67 W30 so it was made way before May of 68 as was listed above. It was made from a cast iron version of a 66 tri-carb intake -- thats why it all looks like a 66 with the crosover blocks. They made it in aluminum and changed the top to fit Q-jet and they called it hi-rise even though it doesnt appear to be, but it is higher than a regular 67 intake because the hood will not shut on the W30 shroud without modification to the underside of the hood.
Anyway mine is in use today? Does anyone know anyone that has another in use today? or How many ever existed? Dale Smith told me " a few" when i asked him. Never heard a number.

Chesrown 67 OAI

It belonged to Craig Couris from Georgia

Chesrown 67 OAI

Heres mine:

preacher

I need some info on this 350 olds block.
ED 17735

BlackGold

Preacher,
Here's what the logbooks say about your block. Unfortunately, the answer is pretty mundane.

ED-17735......Block - Cylinder......12-8-67......McAvoy......OSA 395558 w/added Chaplet Bosses (Trial Run)

[Note: OSA means "Otherwise Same As."]

Casting #395558 is just a normal 350 ci block.
Chaplets are lilttle stand-offs used in the casting process to properly locate a core within the mold. They are usually constructed of the same material as the melt being poured, and they are made with thin dimensions, the result being that they dissolve into the melt and become one with it. I assume that the bosses added to this experimental block were to help locate and hold the chaplets in position during the pour.

While it's possible that the chaplets and bosses were being added to improve the location of some engine feature so as to improve engine performance, it's far more likely that this exercise was to improve the manufacturing yield of the casting process, or perhaps to reduce the amount of machining needed after casting. Seeing as how this is a cylinder block, it's most likely that the cores being served by these chaplets were simply coolant passages.