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Hello from Los Angeles

S

SrtBrad

New member
I might be acquiring a 1965 Pontiac Grand Prix. Overall it seems to be in good original shape. I believe it's the 389 with auto trans. Don't have the exact details on the car yet but I did see it for a for seconds late at night. The owner wants to trade for some home renovation work. What is a realistic value of this vehicle. It's currently painted purple and have no idea if its the original color. It's a rust free California car.

A little about me.....
I work in property management and have a small family owned video production company. I used to race at the 1/4 mile strip a lot till the economy took a dive. I video drag racing now instead of racing for now. Here are the last 2 vids that I did:

http://youtu.be/TomEdOwWfWQ

http://youtu.be/DDuBLi3T5kA

Thanks in advance.
 
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Got a little closer look at it today. Any advise/info would be appreciated as to what this car would be realistically worth.

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Oh wow, that looks great!

As for value, find a reputable classic car appraiser in your area. You may need to call a few vehicle auction sources, but they should at least be able to get you pointed in the right direction.
 


I wasn't positive so I took a look online, and the following is what I came up with.

"no 389 numbers cast any where on the block; look for notch on passenger side deck where the block meets the head"

For a 65 Look for the letters "ws" "wt" "yr" or "ys" on the front of the block.
 
So if the vin doesn't give you the engine description how can you tell if the 389 or 421 was original to the car? Additionally how can you tell what the factory options were to the vehicle. For example were the 8 lug wheels pictured on this thread original to this car? How can you tell?
 
As quoted by Spinner on Google:

Yes the Block Code on the front right of the block (passenger side Front) 2 Letters for most 389 and 421's
On the block just below the right head ...

If you know what year I have 85% of each list...

Example
65 389 256hp Manual trans WA WB
65 389 256hp Auto trans ... YA YB
65 389 333hp Manual Trans WE
65 389 325hp Auto Trans ... YE YF
65 389 RA 360hp Manual WS ... Auto YR

65 421 338hp Manual WG ... Auto YH
65 421 376hp 3X2 manual WJ ...auto YK

There are so many.... But easy to find...

Head codes are the same for both 389 and 421 for 64 65 66
just different combs for each... But you most likely won't find a 64 543796 or 65 #75 on a 421 block
[h=3]Source(s):[/h] 65 ... 421 HO .... YK in my Green 69 4spd car....
67 ... 428 HD ... YH in my Blue 69
4 400's 2 455's 1 LT4
 


those are hub caps, its a 5 lug pattern.

nice solid looking car, all i see are a few dents in that 12 foot long quarter panel. id find a appraiser like said before, best way to figure it out. or see what other cars are selling for in the same original condition.

as far as the engine size, 65 seems to not be marked on the block. but id look for it anyways. if you find a casting of 400 455 ect you know its been changed.

silly thing is the Pontiac big block is really the same size as a small block, unlike a bb chevy where you can tell its a bb or a sb. so it could be a 350 or other engine. makes building a stroker pretty damn easy.

to bad the window sticker is not there, it would tell you everything the car came with, back then you ordered your car from a long list of options.
 
As quoted by Vinnie The Hack from Google:

389
For 1959 the V8's stroke was increased to 3.75 in (95.3 mm), raising displacement to 389 in³ (6.4 L). The 389 would remain the standard Pontiac V8 engine through 1966, offered in a bewildering variety of outputs ranging from 215 hp to 360 hp (160 to 269 kW). The 389 was the standard engine for the Pontiac GTO through 1966.

421
421 in³ (6.9 L) 421. The 421 in³ (6.9 L) was bored to 4.09 in (103.9 mm) and stroked to 4.00 in (101.6 mm), and also featured larger, 3.25 in (83 mm) main journals. Unlike previous enlargements of this engine, it did not replace the 389. Modified Super Duty versions of this engine were extensively used in NASCAR stock car racing and drag racing competition. The 421 also marked the end of the option for a forged steel crankshaft. The later produced 400, 350, and 455 engines, featured an Armasteel crankshaft, the standard crankshaft of the entire Pontiac V-8 line since introduction. "Armasteel" was no more than a fancy name for a hardened cast iron unit.
 
Scottydoggs said:
those are hub caps, its a 5 lug pattern.

nice solid looking car, all i see are a few dents in that 12 foot long quarter panel. id find a appraiser like said before, best way to figure it out. or see what other cars are selling for in the same original condition.

as far as the engine size, 65 seems to not be marked on the block. but id look for it anyways. if you find a casting of 400 455 ect you know its been changed.

silly thing is the Pontiac big block is really the same size as a small block, unlike a bb chevy where you can tell its a bb or a sb. so it could be a 350 or other engine. makes building a stroker pretty damn easy.

to bad the window sticker is not there, it would tell you everything the car came with, back then you ordered your car from a long list of options.
Click to expand...

Getting my own info first before an appraiser see's it is probably good practice. I've seen these cars listed between $1,500 to $20,000. Seems to be an average of $5K listing price in good shape but the above average selling price was around 4K. The wheels are 8 lug not 5. I'm a stickler for giving out the correct info and so far I can't get exact proven details on what was factory on this car and what was not based on id numbers and other info on this car.
 
[TABLE="width: 100%"]
[TR="bgcolor: #FFFFFF"]
[TD][FONT=Arial,Helvetica,sans-serif]PONTIAC[/FONT][/TD]
[TD][FONT=Arial,Helvetica,sans-serif]ALL MID SIZE (GRAND PRIX, GTO, LEMANS, ETC.)[/FONT][/TD]
[TD][FONT=Arial,Helvetica,sans-serif]1964-87[/FONT][/TD]
[TD][FONT=Arial,Helvetica,sans-serif]Metric: 5 X 120.7
Standard: 5 X 4.75[/FONT][/TD]
[TD][FONT=Arial,Helvetica,sans-serif]14, 15 [/FONT][/TD]
[TD][FONT=Arial,Helvetica,sans-serif]7/16-RH or 12 X 1.5 [/FONT][/TD]
[TD][FONT=Arial,Helvetica,sans-serif]70.3 [/FONT][/TD]
[TD][FONT=Arial,Helvetica,sans-serif] [/FONT][/TD]
[/TR]
[/TABLE]


taken from my favorite lug pattern site in the world. once again, its a hub cap, sorry to say its a 5 lug wheel.

Wheel Bolt Pattern Cross Reference Database and Conversion Guide: 5 X 4.75
 
Scottydoggs said:
[TABLE="width: 100%"]
[TR="bgcolor: #FFFFFF"]
[TD]PONTIAC[/TD]
[TD]ALL MID SIZE (GRAND PRIX, GTO, LEMANS, ETC.)[/TD]
[TD]1964-87[/TD]
[TD]Metric: 5 X 120.7
Standard: 5 X 4.75[/TD]
[TD]14, 15 [/TD]
[TD]7/16-RH or 12 X 1.5 [/TD]
[TD]70.3 [/TD]
[TD][/TD]
[/TR]
[/TABLE]


taken from my favorite lug pattern site in the world. once again, its a hub cap, sorry to say its a 5 lug wheel.

Wheel Bolt Pattern Cross Reference Database and Conversion Guide: 5*X*4.75
Click to expand...

This is a 8 lug wheel. It bolts up to the brake drum. This was an option for these cars. The standard 5 lug pattern is probably what you are thinking of. The spare wheel in the has 8 lug holes as well.
 


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