Combustion chamber Volume ?

[Boomyal]

Any ideas on finding the combustion chamber volume for my 1975 351w #D5AE cylinder heads?<br />I've found one site but the chart stops at 1972.

 

[ndemge]

Re: Combustion chamber Volume ?

78CC ?<br />Check out this site... found doing a google search, read and see if that is what you are looking for.<br /><br /> http://home.earthlink.net/~bubbaf250/parts/pics03.html

 

[snapperbait]

Re: Combustion chamber Volume ?

I think their 60cc's, but don't take that too the bank..

 

[Walt T]

Re: Combustion chamber Volume ?

What, you looking for the open chamber heads?

 

[Boomyal]

Re: Combustion chamber Volume ?

DieselWalt:<br />I already have these heads. I had them rebuilt last summer and they are currently installed and running on my 302. Being fresh rebuilds I want to use them on my 331 stroker but I need to know the CC volume to properly choose the pistons.<br /><br />ndemge:<br />Thanks for the site. However there is some confusion here. They give my head number but identify them with a Cleveland derivative motor not a Windsor.<br /><br />Update: One source tells me that Windsor and Cleveland use the same ID# sequence but that he cannot find a chart that lists/shows specs for 1975-76 351 windsor heads

 

[Dhadley]

Re: Combustion chamber Volume ?

Why not measure the volume yourself? Take the head to a machine shop. Most have the ability. Very simple and basic stuff.<br /><br />Who are you talking to about pistons?

 

[Boomyal]

Re: Combustion chamber Volume ?

Dhadley, I may end up having to do that. However, the heads are currently installed on my running motor and I was hoping to leave in that way until I had the stroker shortblock assembled. I will get the pistons with the stroker kit;<br /><br /> http://www.speedomotive.com/ford_302_to_331_stroke_crank_kit.htm <br /><br />but I need to supply the deck height and cyl head volume to choose the correct pistons for my desired compression ratio, 9.0 to 1 or slightly lower.

 

[Bhamil]

Re: Combustion chamber Volume ?

I can tell you A way to do it but you probably already know. This has to be done with the head off but it's a cheap way to do it. You need something like a turkey baster (if you can get a large syringe it would be better), a piece of plexiglass large enough to cover the chamber, some vaseline and light weight oil. Drill two small holes in the center of the plexiglass, one large enough for the tip of the baster/syringe, and one a little smaller to evacuate the air as the chamber fills. Place a seal of vaseline around the chamber, cover it with the plexiglass, and inject the chamber with the oil until it comes out the second, smallest hole. Carefully monitor the amount of fluid, and thats the volume. Around 66CC I think. I'm sure you know this procedure already, just thought I would offer my 2 cents worth.

 

[Boomyal]

Re: Combustion chamber Volume ?

Thanks Ben, I will probably go borrow a core head and do just that.

 

[Bhamil]

Re: Combustion chamber Volume ?

You're welcome but I forgot two obvious things, and you probably already figured it out. I'll tell you anyway but don't think I'm treating you like a dunce, I'm not. Remember that neither valve can be leaking and the spark plug must be in place. Kinda obvious but...

 

[Squirterguy]

Re: Combustion chamber Volume ?

According to this page .........<br /><br /> http://home.earthlink.net/~bubbaf250/history/history03.html <br /><br />74.5cc's

 

[Boomyal]

Re: Combustion chamber Volume ?

Thanks JA, but that is for cleveland heads. A poster on a Ford Windsor forum said that Ford used the same casting numbers on both. Go figure. No one, anywhere, seems to be able to find a listing for 1975 351W heads period. I will just go borrow a core and measure the CCs myself.

 

[Walt T]

Re: Combustion chamber Volume ?

I never played with Windsors. I use syringes to measure volume.