Results 1 to 10 of 10

Thread: Olds 455 K code heads vs. J code heads

  1. #1
    73sleekraft
    Whats the main differance? one of my heads cracked (K code) and i have the opportunity to get my hands on a set of rebuilt J code heads. Is there a big performance differance?? any one know where i can get another K head? Thanks for any help!

  2. #2
    Jetaholic
    Yes there is. "J" heads are the "smog era" heads. They run a smaller intake valve than the "K" heads. They'll work but won't perform as well as the "K" heads.

  3. #3
    ap67et10
    got a set of k heads if you want...well my dad does but hes trying to sell all the olds stuff he has...block pistons rods crank, k heads, torker manifold and some other crap...give him a call he'll give you a real good deal cause hes just getting everything out of the garage. i'll pm you his info
    AP

  4. #4
    ap67et10
    ok you don't have that set up e-mail him at markwpete@sbcglobal.net or call him at 559-917-1785 his name is mark.

  5. #5
    Jim Brock
    i have one K head, $75.00 Jim 818-890-1867

  6. #6
    73sleekraft
    ap67et10 , left a message for you dad....
    what about "c" heads? do they flow the same as the "k" heads?

  7. #7
    kcsteck
    c heads are the best flowing heads. Try to get a set without the hardened seats cause they just cause problems..like fall out and break valves and take out pistons. Trust me been there done that twice!
    Casey

  8. #8
    75 spectra V-drive
    I have one set of K heads new valves ready to go. one set of C heads with one droped hardend seat I installed the edelbrock heads on my motor it made a huge difference. make an offer if interested

  9. #9
    396_WAYS_TO_SPIT
    c heads are the best flowing heads. Try to get a set without the hardened seats cause they just cause problems..like fall out and break valves and take out pistons. Trust me been there done that twice!
    Casey
    Yup what he said!

  10. #10
    biggraypig
    Get the C's.

Similar Threads

  1. Olds 455 Heads
    By 87HARDIN in forum Jet Boats
    Replies: 21
    Last Post: 04-14-2007, 10:06 PM
  2. Olds 455 heads
    By Flip in forum Jet Boats
    Replies: 5
    Last Post: 08-07-2005, 06:34 PM
  3. Heads up, 455 OLDS Edelbrock heads on Ebay
    By Sniper4x4 in forum Jet Boats
    Replies: 5
    Last Post: 03-07-2004, 06:02 AM
  4. Olds heads?
    By jetaddict in forum Jet Boats
    Replies: 3
    Last Post: 09-19-2002, 02:34 PM
  5. 455 olds C heads
    By montrone in forum Bench Racers
    Replies: 8
    Last Post: 05-31-2001, 08:52 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •