What engine came in my '65 impala SS ?

Discussion in '1958-1965 Full size Chevrolet' started by 3deuces, Apr 18, 2007.

  1. 3deuces
    Offline

    3deuces New Member

    Messages:
    4
    Location:
    USA
    I can NOT for the life of me figure out what engine (other than the fact that it was an 8cyl) came in my '65 Impala SS. I've looked all over the net, and can't find anything. Where should I be looking on the VIN/Body Tag to find the engine codes? Thank you for your help!
  2. 1958 delivery
    Offline

    1958 delivery Well-Known Member Supporting Member 1

    Messages:
    2,680
    Location:
    Calif
    That's all you can tell by the vin/data plates whether it was a V-8 or 6 cyl.
  3. 3deuces
    Offline

    3deuces New Member

    Messages:
    4
    Location:
    USA
    so there's no way of knowing if it had a 283, 327, etc.?
  4. tripowerguy
    Offline

    tripowerguy New Member Supporting Member 3

    Messages:
    1,031
    Location:
    North of Bolivar MO
    Didn't 65's have fender emblems that denoted engine size. In 63 they started putting 409 fender tags and I thought 65 Chevrolet put fender tags denoting engine size other than the 6. Of course if the car had fender tags you would'nt have posted this. But I know I have seen 65's or 66's with fender tags of 396 and 327.:dunno Roy
  5. ROYALOAK62
    Offline

    ROYALOAK62 Member

    Messages:
    529
    Location:
    Royal Oak Michigan
    What engine came in my 65 Impala SS

    If you have an engine in the car now or you don't, the V8 engines for the Impala SS are the following.

    Base V8
    283 ci , 195 hp with Rochester (7024101) 2-barrel, code #GA or GC

    Optional V8
    283 ci , 220 hp with Rochester (7024024) 4-barrel, code #GK or GL (NOT SURE IF THE SS HAD THIS ENGINE, AS THE BOOK ONLY SHOWS CHEVROLET NOT SS. ALL OTHERS ARE LISTED AS THEY WERE USED ON THE SS)

    327 ci , 250 hp with Carter (3846247) 4-barrel, code #HA or HC

    327 ci , 300 hp with Dual exhaust and Carter (3851761) 4-barrel, code #HB or HD

    396 ci , 325 hp with Carter (3851761) or Rochester (7025200) 4-barrel, code #IA, LF, IC, IG, II, LB, IV, IC, IW, or IB

    409 ci , 340 hp with Dual exhaust and Rostester (7025123) 4-barrel, RPO code #L33, engine code JB, JC, JE or JF

    409 ci , 400 hp with Dual exhaust and Carter (3855581) 4-barrel, RPO code #L31, engine code JA or JD

    Dave
  6. 1958 delivery
    Offline

    1958 delivery Well-Known Member Supporting Member 1

    Messages:
    2,680
    Location:
    Calif

    There are little things that will point you towards what it had, things like just single exhaust mounts under body indicating it had a single exhaust V-8, radiator size, if it's original. But what's the point. The original engine is long gone, make it the way you like it.
  7. 3deuces
    Offline

    3deuces New Member

    Messages:
    4
    Location:
    USA
    Here's what I've come up with for the numbers I have:

    VIN: 166375JXXXXXX ('65 Impala SS 2dr Sport Coupe)
    11C : November, 3rd week
    ST 65-16637: Impala 2dr sport coupe, 8cyl
    Body - JAN3622: ?
    TR 879: Impala SS, red interior, vinyl, bucket seats
    Paint R-R: Regal Red lower & upper body color
    E: Tinted Glass
    2L: 4 speed, M21, M22
    3C: Padded Dash
    5W: Right Exterior Mirror

    Is what I've come up with correct? I can't find and RPO numbers for the engine... where would those be? Thanks again for everyone's help.
  8. 1958 delivery
    Offline

    1958 delivery Well-Known Member Supporting Member 1

    Messages:
    2,680
    Location:
    Calif

    That's a nice combo. Most 65's seemed to be blue or white. A red on red 4spd car iSS is very very nice. Which engine turns you on?
  9. bobs409
    Offline

    bobs409   Administrator

    Messages:
    7,968
    Media:
    33
    Albums:
    6
    Location:
    The coal regions of Northeast, PA
    I've been trying to complile a list of ways to tell if a car had a 348 or 409 for each year. This may help you to see if it was a 409 car at least. I made a post about this a while back and some members helped by submitting some info. Here is what I have for 1965:

    *All 409 cars had ballast resistor on firewall
    *all 409's had a fuel return line
    *larger radiator
    *No AC on high performance 409's. (63-65 for sure, not certain on 62?)
    *340hp 409 cars had a Heavy Duty unit. The HD/PG is easy to tell apart from a STD/PG as the case is larger and has a giant "H" cast into the top of the bell housing
    *12 bolt rear
    *4-link rear suspension (the left rear upper control arm is unique to 409s and station wagons)
    *14X6" rims
    *Fan shroud-409 fan shrouds have left and right upper gussets spot welded between the ring and the frame. BBC '65-'66 shrouds dont have these.
    *dual exhaust


    Just disregard the powerglide part as yours is a 4 speed.

    Other than that, have you checked under the seats for a build sheet? They could be many other places too but I wouldn't recommend tearing the car up over it, sometimes a car didn't have one. (although, some had 3!)

    Bob
  10. real61ss
    Offline

    real61ss Well-Known Member Supporting Member 6

    Messages:
    2,040
    Location:
    Richmond, Virginia USA
    Bob,
    I believe some corrections may be needed to the list you posted. My comments are in red.





    *All 409 cars had ballast resistor on firewall
    *all 409's had a fuel return line '61 & '62 409's did not have return lines
    *larger radiator
    *No AC on high performance 409's. (63-65 for sure, not certain on 62?) solid lifter 409's were not available with A/C
    *340hp 409 cars had a Heavy Duty unit. The HD/PG is easy to tell apart from a STD/PG as the case is larger and has a giant "H" cast into the top of the bell housing
    *12 bolt rear
    *4-link rear suspension (the left rear upper control arm is unique to 409s and station wagons) I don't know of any factory installation of the left arm other than maybe the Z-11 cars
    *14X6" rims 6" rims were available in '63 & '64 but not standard on any 409 unless the motor was factory installed in a station wagon
    *Fan shroud-409 fan shrouds have left and right upper gussets spot welded between the ring and the frame. BBC '65-'66 shrouds dont have these.
    *dual exhaust
  11. gearhead409
    Offline

    gearhead409 Member

    Messages:
    798
    Location:
    central ohio
    Tommy

    i'am not into 65s but i was thinking all 65 409-396 cars had 4 link rear axels???
  12. real61ss
    Offline

    real61ss Well-Known Member Supporting Member 6

    Messages:
    2,040
    Location:
    Richmond, Virginia USA
    Gearhead,
    You are correct, I forgot, they had they had the new style rear.
  13. Rockfish39
    Offline

    Rockfish39   Supporting Member 1

    Messages:
    523
    Location:
    Longwood, FL
  14. real61ss
    Offline

    real61ss Well-Known Member Supporting Member 6

    Messages:
    2,040
    Location:
    Richmond, Virginia USA
    Rock,
    You are correct. When I think of the 409's, I think of the '61 to '64 cars. I don't mean to exclude the '65 cause I know they are special cars. They are a different frame and body style. I had a '66 427/425 and it had 6" wheels with 8:25x14 tires.
    Thanks for correcting me.
  15. 1958 delivery
    Offline

    1958 delivery Well-Known Member Supporting Member 1

    Messages:
    2,680
    Location:
    Calif

    Unfortunately since GM didn't vin code these, everything can be re-created on that car to make it appear to be original. Buyer beware. Plus his statement of how many is nothing more than a some what educated guess, no production records are in existance from GM.
  16. bobs409
    Offline

    bobs409   Administrator

    Messages:
    7,968
    Media:
    33
    Albums:
    6
    Location:
    The coal regions of Northeast, PA
    Thanks for helping Tommy. The fuel return line I listed was really only aimed at 1965. Didn't mean to sound like all years had it. From my info, 63-65 was the only years for this.

    I'll update my info for the AC though. I wasn't sure on 61 & 62 but now thanks to you, I am. :)


    Bob
  17. belair6162
    Offline

    belair6162 Member

    Messages:
    55
    Location:
    Speedwell,Tennessee
    Would the fuel line size determine big block or small block ? that would be a start.:dunno
  18. real61ss
    Offline

    real61ss Well-Known Member Supporting Member 6

    Messages:
    2,040
    Location:
    Richmond, Virginia USA
    "Would the fuel line size determine big block or small block ?"


    Depends on what year model you are referring too. If you are referring to '61...yes, if the car had a 3/8" fuel line that appeared to be original, that would be a good indicater that the car may have been a 348.

    Later years......the 300/327 also had the 3/8" fuel line.
  19. bobs409
    Offline

    bobs409   Administrator

    Messages:
    7,968
    Media:
    33
    Albums:
    6
    Location:
    The coal regions of Northeast, PA
    Agreed. If 5/16", would have been a 6 or 283. If 3/8", would have been a 327, 396 or 409.