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Can you install a 66 intake manifold on a '75, 327 small block?
I want to keep the block, and carb and just exchange the intake manifold? Any advise is appreciated, Thanks
Welcome to the forum.
Yes, it will bolt up, depending on the carburetor you plan to use, the Quadrajets are a spread bore and will not fit the 66 intakes as they accepted the 4160 Holley carburetors. If you can post some pictures of the intake and carburetor you have, there are a lot of guys here that can give you guidance.
Also post pictures of your car as we love eye candy.
Ron
Thank you all for the advise and of course any additional will be appreciated, the goal here is to rebuild the engine, I believe that the engine is not of a 66' but newer model, I am guessing 70's this is why I was asking about the manifold, based on my research it looks like the manifold, intake and carb, is from a 75 though I'm not sure, anyway the goal as stated is to buy a 66' manifold intake and adapt it to the block and carb, can this be possible?
last picture is of the manifold.
The Vette is a 66' Auto Black on black Stingray Coupe, small block.
Last edited by gogo2273; Apr 28, 2025 at 11:34 PM.
So, do you want to look like a 300 HP or an L79 which is a 350 HP ?
The 300HP is all cast iron, painted orange, with tin valve covers, while the L79 has an aluminium intake and valve covers.
Either way, you’ll have to ad a PCV valve to an oil fill tube in the front and a breather to one of the valve covers, to take care of crankcase pressure, as that block has no provision for a breather pipe on the back.
A cast iron (NOT alum) manifold with a Q-jet bolt pattern was introduced in 66, which would work. An added plus is that 66-68 manifolds also have a hole up front for an oil tube. I have a pile of about ten 66-68 of these style manifolds.
Those boxes are 2 1/2in Ram Horn manifolds, plus I have a pile of misc ex manifolds, including one 6cyl ex manifold.
I see this car had A/C. If you can post the casting number at the back of the block and the alphanumerics on the stamp pad, we can ID the thing. Dennis
Tom, I can't begin to imagine the weight those shelves are holding!
They are well braced, with steel angle iron all the way across the front of each shelf and the studs/legs are angle braced back to the base of the wall.
This building was to be the absolute end of my storage problems. WRONG!
FRONT
BACK
I'm on a corner lot, so I have a drive all the way across the back.
Looks well done and I'm sure you planned carefully. I know how my back objects when I move a head or two around. Your collection makes me ache just looking at it! And you're right, there is no such thing as "enough storage space".
That engine looks to be a 350 from the 70's (corporate blue). If those are the original heads they are hopeless and I would suggest sourcing another set. The 66 intake will bolt to that head/block just fine.
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.
Manifold Intake
Dennis
