Stroke...stroke
+ Reply to Thread
Results 1 to 9 of 9

Thread:
Stroke...stroke

  1. #1
    Senior Member
    Join Date
    May 2008
    Location
    Douglas, MA
    Posts
    1,234

    Default Stroke...stroke

    I don't know much about stroking an engine...but I was curious what is involved.



    This is just a 468 4 bolt main that I have a set of turbo's on...but if I wanted to stroke it to a 502 or ? Could I? What is involved? Is it worth it?

    Since the engine is pretty fresh I probably won't be doing anything for a bit, but like I said...just curious about the stroke.

  2. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  3. #2
    steelcomp was here
    Join Date
    Dec 2007
    Location
    n/e TN
    Posts
    26,271

    Default

    Buy a stroker kit and build a 496.

  4. #3
    Senior Member
    Join Date
    May 2008
    Location
    Douglas, MA
    Posts
    1,234

    Default

    like a speedomotive deal?

  5. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  6. #4
    Senior Member lbhsbz's Avatar
    Join Date
    Oct 2008
    Location
    Long Beach
    Posts
    1,617

    Default

    Your stock stroke is 4.00". The next step is 4.25". You'll need new pistons with a different pin height to compensate for the longer stroke. It's also a good idea, but not mandatory, to go to a longer rod...6.385" instead of your stock 6.135" rods to keep the rod angle reasonable.

    So, you'll need:

    4.25" stroke crank
    6.385" rods
    pistons

    Oh, and speedomotive sucks. I would shop elsewhere.
    Last edited by lbhsbz; 08-02-2010 at 10:31 AM.

  7. #5
    Village Idiot fc-Pilot's Avatar
    Join Date
    Jan 2008
    Location
    Peoria, AZ
    Posts
    3,278

    Default

    The one other detail is that you might have to do a little bit of block clearancing to make sure that you have plenty of pan rail and cylinder clearance. On the last three I built I had to clearance the pan rails and part of the bottom of the cylinder walls. Here is a picture of one of the blocks I did a few years ago. I needed to clearance the bottom of the cylinder walls and only a touch of one of the pan rails. (I did not want to post the picture as it is really big)

    http://i278.photobucket.com/albums/k...d/IMG_0938.jpg

    Paul

  8. #6
    Senior Member
    Join Date
    May 2008
    Location
    Douglas, MA
    Posts
    1,234

    Default

    Quote Originally Posted by lbhsbz View Post
    Your stock stroke is 4.00". The next step is 4.25". You'll need new pistons with a different pin height to compensate for the longer stroke. It's also a good idea, but not mandatory, to go to a longer rod...6.385" instead of your stock 6.135" rods to keep the rod angle reasonable.

    So, you'll need:

    4.25" stroke crank
    6.385" rods
    pistons

    Oh, and speedomotive sucks. I would shop elsewhere.
    What is kind of the 'maximum' stroke (cubes) on a regular block these days? I remember my uncle did a 502 some time back...what a freakin' torque monster that thing was (especially after he Turbo charged it )

    Again, probably not something I am doing any time soon, but just curious so I can get my mind working

    Speedo sucks...gotcha.

    I think flatlander racing was another one I used to see. Some one from the board said they had a pretty reasonably priced kit too.

  9. #7
    No Sandbar To Far sanger rat's Avatar
    Join Date
    Dec 2007
    Location
    MI
    Posts
    3,276

    Default

    Don't forget a new internal balance flywheel, balancer, and a stroker oil pan.

  10. #8
    Senior Member
    Join Date
    Jul 2008
    Location
    Kingman/Golden Vly, Az
    Posts
    1,278

    Default

    Quote Originally Posted by sanger rat View Post
    Don't forget a new internal balance flywheel, balancer, and a stroker oil pan.
    NOT necessary!...my Scat crank uses the external balancer, flex plate & my Milodon 10qt pan fits just fine ...after all parts are aquired for the build, take everything & get it balanced!

    FastRat

  11. #9
    gn7
    gn7 is offline
    Senior Member gn7's Avatar
    Join Date
    Jan 2008
    Posts
    25,975

    Default

    Your uncle didn't build a "stroker" 502. It was either a 502 to start with, which is a just larger bore 454, but requires a different block than a 454. Or, his stroker was really a 505. Which is a 454 bored .100 over and a 4.25 stroker crank.



    100% free webcam site! | Awesome chicks and it is absolutely free! | Watch free live sex cam - easy as 1-2-3

+ Reply to Thread

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Please select your insurance company (Optional)

Log-in

Digg This Thread

Posting Permissions

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

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95