Cam to crank center to center?

[gary534]

Can anyone tell me the camshaft center to crankshaft center distance?

 

[dq409]

Gary, What are you doing? Your own machine work!
Sounds like you need a blueprint guide ,,dq

 

[gary534]

contemplating bored stroked 409

dq409, I dont have the $ to make it happen, not yet anyway, but I was wondering what the max bore, max stroke you could get from a custom cast block, custom crank W series.

 

[jim_ss409]

If you go .060 over on a 409 block. Then use a modified 454 crank with a 4" stroke I think you end up with 481ci. If you use the same .060 over pistons with an aftermarket 4.25" crank I think you'd get about 510ci. I think a 4.25" stroke is about as far as you can go because the pan rails aren't all that wide. You usually have to gind on the block a little just to fit the 4" (454 style) crank.

 

[gearhead409]

Gary

cam bore to crank center line is 5.045" if my mind hasn't went south. you asked what the deck height is on a W block, my trig. is a little rusty but i think it's 10.200".

 

[jester]

You guys are in a league of your own.

 

[gary534]

thank you very much, Jim and gearhead409

gearhead409, where do you measure that 10.200 deck ht? At the cylinder center, or at the valley side where its lowest? Note I was thinking about 4.50 custom cast block bore, which would move valley side of the bore farther down the 16* angle.

 

[gearhead409]

Gary

center of bore.

 

[gearhead409]

Gary

sounds like you may have the means to redesign and cast a new 409 block. if so, there are alot of guys on here that can give you enough ideas to make a 600-700 cu. in. W motor! WOW

 

[gary534]

Thank you very much, gearhead409

I dont have the kind of $ it would take, not yet anyway. Custom cast engine block runs about $200K for setup.

 

[dq409]

I dont have the kind of $ it would take, not yet anyway. Custom cast engine block runs about $200K for setup.

It won`t be too far off until there is a all alum 409 block on the market, hint,,hint

 

[jim_ss409]

It won`t be too far off until there is a all alum 409 block on the market, hint,,hint

Now I know what I need to make my life complete... An all alluminum 409 for my 55 Chevy!!!

 

[gary534]

16* deck angle complicates matters

Aluminum block needs iron cylinder sleeves, sleeves would have to have 16* angle at top, sleeve angle would have to be aligned with block angle.

 

[dq409]

Aluminum block needs iron cylinder sleeves, sleeves would have to have 16* angle at top, sleeve angle would have to be aligned with block angle.

From what I hear, not a problem,,dq

 

[models916]

Merlin

Merlin tall deck BBC is the way to go.

 

[threeimpalas]

cam bore to crank center line is 5.045" if my mind hasn't went south...

How does this compare to the cam-to-crank distance of the BBC (what is this distance on the BBC)?

 

[gary534]

5.152

Thats what I heard for BBC on a Ford forum.

 

[gearhead409]

Gary

sounds about right. GM moved the cam bore up higher when they designed the bbc. one of our members pointed this out to me awhile back.