Page 1 of 2 12 LastLast
Results 1 to 10 of 17

Thread: anyone run a 4 7 swap camshaft?

  1. #1
    flattie
    Did anyone run one of these cams? How do they like it? Does the engine sound any diffrent?

  2. #2
    Senior Member
    Join Date
    Feb 2009
    Posts
    4,974
    Did anyone run one of these cams? How do they like it? Does the engine sound any diffrent?
    Engine sounds the same. They do make a little more power. If you are dragboat racing trying to squeeze everything out of your motor then put one in. If not, you probably wouldn't notice a difference between the two.

  3. #3
    flattie
    Well Im going to try to pick out a bigger cam for my engine within the next few week or so. Just wondering if it is something I should consider doing

  4. #4
    Senior Member
    Join Date
    Feb 2009
    Posts
    4,974
    It you are buying a new cam either way, get a 4/7 deal. Just dont forget to redo the plug wires.

  5. #5
    PGF500
    I have one in my pro gas engine. If you have an over sized cam 54mm I have a brand new spare comp cams. Don't know the exact numbers on but I can look on the box. Let me know if you are interested.
    Cole

  6. #6
    flattie
    ordered one today custom grind I did the 4-7 swap along with a 3-5 swap. Should be a brain buster for the next guy

  7. #7
    the real k-boat king
    It you are buying a new cam either way, get a 4/7 deal. Just dont forget to redo the plug wires.
    dam i didn't know you were a engine pro to.

  8. #8
    steelcomp
    A header change is usually a good idea to take advantage of the 4-7 swap. Honestly, most guys leave so much power on the table by overlooking other things they should be concentrating on, that they'll never really get the benefit out of a 4-7 swap. If you have everything absolutely dialed in with your combination, then -sometimes- a 4-7 will net you more power. Rarely, though. I woldn't bother.

  9. #9
    turbo wog
    i had a fuel problem & burned # 7 (3 times) & # 4 once with # 7 . . the 4-7 swap would have gave me a little insurance from what i understand. its in the degrees of which they fire .7 gets some exaust pushed into the cylinder from 5 i believe? (not sure wich cylinder 4 gets heated by) but causes temp in 7 to go up hotter than the other cylinders & put exaust in cylinder also. it doesn't matter if you have long tube headers but water logs it does. someone else might know the exact facts,but this is what ive been told.

  10. #10
    LandSpeedRacer
    Hey man . . . . .
    After reading your post . . . . .
    I think what you need is two more turbos!

Page 1 of 2 12 LastLast

Similar Threads

  1. ID a Camshaft
    By BIGCHRIS in forum Gear Heads
    Replies: 9
    Last Post: 11-26-2006, 06:06 PM
  2. Okay Camshaft Gurus..Let's talk about the 4/7 swap
    By DeputyDawg in forum Gear Heads
    Replies: 24
    Last Post: 08-16-2005, 06:20 PM
  3. What does a camshaft do?
    By cstraub69 in forum Gear Heads
    Replies: 46
    Last Post: 02-20-2005, 08:56 AM
  4. Camshaft ID
    By mickeyfinn in forum Gear Heads
    Replies: 5
    Last Post: 05-20-2004, 08:29 AM
  5. Camshaft for you?
    By Fiat48 in forum V-Drives
    Replies: 10
    Last Post: 01-12-2003, 02:27 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
  •