New member here looking for guidance on my 1970 Cuda

[harlow conrad]

Yes..I have them but not on the car. Oh...I think the intake is not original too but not 100% sure about that.

Rick

Edelbrock intake and thermoquad carb added some time.I had a 70 383 Cuda all original back in 71. Cast iron intake and a Holley vaccum secondary carb.all I did to mine at the time was free flowing mufflers and a 780 Holley a good clutch and a supper time on the engine.i was going to mechanic school at the time so it was on the engine analyzer every Saturday morning and street racing it that night.it was very fast!!

 

[fastmark]

One piece of advice on the block. The deck of the block may need surfacing. It may not be flat. They can even be warped. I’d make sure it needs it before they just cut it. A good shop can check it with a straight end. Now, there are numbers on the right deck surface that will be removed if the block is decked. I have not had had a 383 block that I have tried to save those numbers but most shops just look at you funny and tell you it will be hard to save them with their machine. So if you have to surface the deck to true it up, be sure and take plenty of pictures and a pencil rubbing of the numbers. Nice original car by the way.

 

[azfrench]

That is great advice! Thank you. I will be sure to do that.

Rick

 

[fasjac]

I love a thermo-quad on a 383 with cast iron intake. Nothing like those big secondaries opening.

 

[azfrench]

What do you make of this? This is the “K” member n my 70 cuda.

 

[azfrench]

I pressure washed the motor compartment and discovered this. It looks like work has been done. What is the tag with the number 12 I wonder?

 

[fastmark]

That k member is stock. They were not pretty from the factory. The 12 coin, as it’s called, is the last 2 digits of the part no of the k member. They started that in 70 but did not go past 71 years.

 

[Chryco Psycho]

They did not start using the Thermoquad carb until 71 , IMO I would reuse the intake & carb both are better than stock , the stock intake was a square bore iron unit & usually in 70 it would have a 600cfm Holley on it

 

[azfrench]

Thank you for the replies. Currently have the car on the lift ready to replace worn parts. Calling machine shop today to make sure they don’t deck the block. Thanks for all the input.

Rick

 

[MoparCarGuy]

The Edelbrock intake manifold and the 71-up Thermoquad could have been added in the first couple of years after purchase. The intakes were available over-the-counter at the dealer. Some good info here.