azmusclecar

I'm looking at a 1964 that shows the Tach redline at 6500

Car also appears, to have stock A/C..........R12 compressor and all.

What or is this possible?

If so what engine could this have been?

The engine in the 64 WAS replaced by GM in 1965 ...I would like to know what the original could have been, AND if it was replaced, then probably with what?

I realize it may be easier to install A/C rather than change out a tach.

So....confused here? You bet...............

The owner does not know how to decode............

Powershift

Probably the 327/365 SHP solid lifter engine. The carburetor version of the SHP FI engine.

AC was available on these engines, but I think you would want it off if you shift at 6500 RPM. The AC compressor had a bigger clutch on it to try and keep the AC compressor RPMs at a manageable level during spirited driving.

This same engine was available in 1965 as well………..so hopefully GM replaced it in kind.

Larry

MikeM

Even though these engines would rev well over 7000 when new, the best advice I could give you is to limit your playdays to 6000 or under. Parts get old and tired.

You can tear it up if you want to.

azmusclecar

Thanks Larry, I was assured it was or is NOT a fuel injected.....I just heard that hi revving engines rarely if ever got A/C....thus my question.

It has a carb and all but the seller is not up to decoding. It's just part of a collection of cars...........

Powershift

The Flint engine factory build code for the 327/365 SHP engine with AC for 1964 is RR. If it had TI ignition also the code would be RU. In 1965 these codes changed to HK and HM, respectively.

The transmission is obviously a 4 speed (only) for this engine.

Larry

jprop

The 327/365 had a 6500 red line. A 327/365 could be had with a/c in 64. Its rare but it sounds correct.

Since they replaced the engine, I have no idea what that could be. You'd have to post some of the numbers.

BTW, its not easy to add a/c and do it factory correct. I doubt that was done. It is much easier to change the tach. Based on your information, I would say the car was originally a 327/365 with a/c.

azmusclecar

Yes it's a 4 speed.....but owner has no idea of rear gear.........that's still a mystery.

Any guesses on what gear it MAY be with the engine A/C options?

azmusclecar

You are so right, not having information as in engine codes does make this an interesting process. CAN YOU SAY STRESS BOYS AND GIRLS?

jprop

I don't know of any gear restriction with a/c. If its still there, there should be a metal tag attached to the differential. The shape of the tags denotes the gear ratio. Its also stamped on top of the diff but can't be seen easily from under the car.

Vet65te

There have been a few recent threads on 64/65 365 Vettes with A/C. Can't remember the exact number but I thought they made only a couple hundred with that combination in 65, not sure about 64 but more than likely it was a low number. How's the rest of the car pan out? Get any pics?
Mike T.

azmusclecar

My last 64 had a 2 letter stamping on it decoding it as a 3.08 open....hard to even find those 2 letters

jprop

This is true. It is a very rare combination. If the engine was really replaced by GM in 1965, I would think they would have put the same engine back in. With a little more information it would be easy to tell what engine it has. Does he have any proof that the engine was replaced by GM? Again, the casting date may reveal some answers.

C2Racer

I just bought one of these. Here is what I have learned and have no idea what is correct or not. All 64's have the same tach redline. FI motors could not be had with AC in 64. So not sure what you have found and nobody will ever know with the original engine gone.

Oh, they made 241 in 64 365hp AC cars.

Edit, the NCRS books says the FI and 365hp cars only had the 6500 tach?? But there is a newer book now.

jprop

250hp and 300hp had 5500 redline.

Nowhere Man

more then likely if the engine was replaced under warranty only a long or short block would have been used. so the intake, carb and dist would have been used over from the original block

azmusclecar

This is correct..my numbers matching 64 327 300 hp had the 5500 redline..................

azmusclecar

good point..............I'm working to contact the previous owner to get more info.................hopefully this will bear fruit................

C2Racer

Look for a Holley 2818 with a 63 or 64 date.

Ironcross

64 with a 6500 red line tach would be equipped with a solid lifter engine....easily heard by its very noticable valve train noise....if its quiet, its not a high performance engine.........

And one of my toys has a L-72 engine against a T-400...as a footnote it is also a factory air car and a 4.1 gear.....if any question concerning performance doubts, they do work very successful with those option combinations.....

azmusclecar

Will do thanks for the info.........

I'm learning reality is a lot different from rumors when you learn what is the truth.............
Thank you for your input as well............