413 industrial motor

[bobgears]

Does anyone know if you can put 440 heads and intake on a 413 industrial motor and what other changes need to be made?

 

[Glenwood]

413, industrial or not, is a RB block like the 440. I've started to build one now and plan to use 906 heads on it with either a stock dual plane intake or an alum performer that I have.
Though it's worth mentioning that the waterpump housing has to change if it was plumbed into the heads.
I will likely change the timing cover & damper to use the 440 pulleys. Some of the industrial blocks have timing gears instead of a chain and a cam that runs reverse.

 

[PurpleBeeper]

I will likely change the timing cover & damper to use the 440 pulleys. Some of the industrial blocks have timing gears instead of a chain and a cam that runs reverse.[/QUOTE]

Interesting note on a reverse rotation cam & OEM gear drive.

To bobgears....yep, the 440 parts will bolt right up. I had a '65 or so 413 that I put into a '69 Road Runner many years ago with 906 heads and a stock 440 cam. Everything bolted up just fine, though thinking back on it, I bet my compression ratio was pretty low. The stock pistons might be "down in the hole" quite a bit. I'm not sure at all on that, but I think all/most of the 413's came with closed-chamber heads, so it wouldn't surprise me.

 

[Glenwood]

Just to let you know, this thread is in the wrong section and will probably get moved.
It's worth mentioning that some of the industrial blocks also have 8 bolt cranks and I believe clearance differences with the flexplate. Do lot's of research and take a good look at the block as I did. Mine has a standard 6 bolt forged crank.
My block is in the builders shop and a quick sonic check revealed very thick cylinder walls. He's planning on boring it out to 426 spec, about .070 over with lot's of room to spare. Also, I was told that these blocks had high nickel content and wear very little, which might explain my near perfect cylinders.

 

[MFP]

Hi , I'm not a mechanic and I'm probably wrong and will be corrected , however , if you had a 413
( "motorhome" block as I call them ) and you rebored by + 30 would you then have 426 cu in ? Then add some hemi heads and essentially have a hemi engine ?

 

[Glenwood]

A 413 has a bore size of 4.18" and a 426 is 4.250". The difference is 0.070" not .030. A 413 is an RB motor like a 440 and may share the same heads but not hemi heads.

 

[MFP]

Thanks mate , was just thinking out loud when I read it ..... Every day's a school day

 

[Glenwood]

Thanks mate , was just thinking out loud when I read it ..... Every day's a school day

Tell me about it, I'm still trying to learn this stuff!