Welcome to Club Hot Rod!  The premier site for everything to do with Hot Rod, Customs, Low Riders, Rat Rods, and more. 

  •  » Members from all over the US and the world!
  •  » Help from all over the world for your questions
  •  » Build logs for you and all members
  •  » Blogs
  •  » Image Gallery
  •  » Many thousands of members and hundreds of thousands of posts! 

YES! I want to register an account for free right now!  p.s.: For registered members this ad will NOT show

 

Thread: need help, pisron hits valve
          
   
   

Reply To Thread
Page 2 of 2 FirstFirst 1 2
Results 16 to 20 of 20
  1. #16
    pat mccarthy's Avatar
    pat mccarthy is offline CHR Member/Contributor Visit my Photo Gallery
    Join Date
    Apr 2005
    Location
    bay city
    Posts
    10,546

    Quote Originally Posted by Dave Severson View Post
    I'm certainly no BBC guy, but should the piston be that high out of the block or am just seeing things in your picture????? Looks like the top of the piston is dang near 1/8" above the block?????
    NO dave there ok he doing some thing worng with the way he checking his PV them are not big look at them 638 or 632 on my photos them are big domes
    Last edited by pat mccarthy; 09-14-2009 at 09:31 PM.
    Irish Diplomacy ..the ability to tell someone to go to Hell ,,So that they will look forward to to the trip

  2. #17
    canadianal's Avatar
    canadianal is offline CHR Member Visit my Photo Gallery
    Join Date
    Nov 2004
    Location
    waldeck
    Car Year, Make, Model: 66 ford custom,27 t bucket
    Posts
    683

    when i did my farm boy rebuild on my cadillac engine i put the head on and put a piston at tdc and carefully let the valve down on the piston and actually measured the distance of valve drop without a gasket ugly and fast, but it worked to see where i was in relation to valve clearance with calculating lift and rocker arm ratio. I wasnt anywhere close to a clearance problem but it gave me an idea of where i was at.
    I agree Pat he has to start somewhere cause it wont work the way it is now. I deferr any thoughts to you cause any advise you have ever given has been spot on.
    If i ever want to build my 454 i am going to ask you for shure for some good advise

  3. #18
    skids72's Avatar
    skids72 is offline CHR Member Visit my Photo Gallery
    Join Date
    Dec 2005
    Location
    Lafayette
    Car Year, Make, Model: 68 Firebird 439 BBC
    Posts
    745

    Stupid question but hard to tell from pics: is piston in backwards?
    Paint don't make it no faster

  4. #19
    jerry clayton's Avatar
    jerry clayton is offline CHR Member Visit my Photo Gallery
    Join Date
    Feb 2006
    Location
    Bartlett
    Posts
    6,831

    well after reading thru here and looking at the pics I have come up with the answer-----first it does look like the piston is out of the hole some and it could possibly be a 427 piston instead of a 454 piston--the putty is NOT marked from valve contact----I think he cranked down too far on his adjuster nuts and the retainer hit the guide/seal, never touching the piston

  5. #20
    pat mccarthy's Avatar
    pat mccarthy is offline CHR Member/Contributor Visit my Photo Gallery
    Join Date
    Apr 2005
    Location
    bay city
    Posts
    10,546

    Quote Originally Posted by skids72 View Post
    Stupid question but hard to tell from pics: is piston in backwards?
    water ports for heads cooling are in back of the mark 4 block and open so your looking at the front of the block os that number one hole and is right ? from what i can see ???????????????????? mark 5/6 are open front and back but the mark 5 cnc bowtie is plug in front to make the water go thru the back of block
    Last edited by pat mccarthy; 09-15-2009 at 05:25 PM. Reason: i added some stuffffffffffffffffffffffffffffffffffffff
    Irish Diplomacy ..the ability to tell someone to go to Hell ,,So that they will look forward to to the trip

Reply To Thread
Page 2 of 2 FirstFirst 1 2

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
Links monetized by VigLink