Follow Along As I Build A 400

[TexasNomad]

heck yeah Air kicks ass

 

[393clevor]

Got the tools I need to keep going, just haven't felt to good the past two days. Hopefully I'll be back at it tomorrow...

I'll be sure to update when I have one.

 

[TexasNomad]

its a awesome Build, the more i read about the 351m/400 the more I think the 460 isn't the best choice for what I want..

 

[393clevor]

its a awesome Build, the more i read about the 351m/400 the more I think the 460 isn't the best choice for what I want..

Your not the first person I've heard say that
460 has a 3.85 stroke I think
the 400 has a 4.00 inch stroke, only thing that sucks is the intakes are limited unless you use adapters and run a 351C intakes,,, dime a dozen

 

[F 150Cobra]

what about a 351W is it good for a 393 stroker or 408 ?

 

[393clevor]

OK I got back at it the other day, still waiting on parts. I rechecked the ring gap and had to open the top ring from .023 to .026 the second ring was .014 so all is good there. Waiting for new HV oil pump and the heads.

check out the new pistons, they land right at 0 deck perfect that should up the compression.

Got the cam, timing set, water pump installed... I use the ARP assembly lube on the cam, it's thick and stays where you put it. I'll put some on the bottom of the lifters as well.

 

[393clevor]

Ok I got the heads back from the shop, they needed 4 or 5 guides so I have to trim the guides back in the bowls.

Here's a few pics of the heads after I started on the exhaust ports.
Notice the deep grooves in the chambers around the seats, if left as is it would create a bunch of turbulence coming in and going out.

This pics shows the groove free chamber around the seat

These pics show how I opened up the oil return path to the drain holes in the heads.

This is the D5 Exhaust post found on most 351M/400 it is very restrictive. The heads I used are 74 351C 2V heads they have a must better exhaust port.

D5 Exhaust Port

Here is the 351C 2V after some porting

intake port bowl before

Intake port bowl after

Wow I got lost in this post.... The heads will be done on Monday he has to set the spring height and finish the 3 angle valve job so I should have it done ether Monday night or Tuesday... I'm still looking for a junk big block C6 so I can cut the bell off it and mount the engine to my stand and run it before I put it in the truck.

 

[F 150Cobra]

wow.. coollll o should send u my GT40 heads for u to port them

 

[393clevor]

wow.. coollll o should send u my GT40 heads for u to port them

OK you pay the shipping plus 200.00 and I'll port them for you.

 

[TexasNomad]

Wow man!
I want you to build me a engine..lol

 

[flareside_thunder]

OK you pay the shipping plus 200.00 and I'll port them for you.

That's not a bad quote.....I got quoted the same by a buddy of mine.That build is lookin good man.

 

[m78]

post a picture of the tools you usd

 

[393clevor]

post a picture of the tools you usd

Here you go.. I've been doing it a while. I just started doing some 351W D0OE heads for my! mud truck... this time I got crazy and installed some brass tubes in the push rod holes so I could open the inlet as much as possible.

 

[393clevor]

That's not a bad quote.....I got quoted the same by a buddy of mine.That build is lookin good man.

Thanks I wish it were mine I would have done it right....

 

[flareside_thunder]

Hey mind if I ask what the plumber's putty is for?

 

[393clevor]

I use it to protect the inside of the brass tubing from filling up with JB Weld. I drilled the push rod holes to an even 9/16 diameter, half the hole is 9/16 and the other half is a little smaller. Once it's an even 9/16 I hone the hole with a ball hone to clean it. Then port the inlet to where it's just starting to brake through into the push rod hole evenly the all the way across.I clean every thing with some lacquer thinner then I mix up some JB Weld and cover the brass tube and the inside of the push rod hole, ball up some plumbers putty and fill the end of the brass tube with it. Push it through the hole and the plumbers putty keeps the JB Weld from getting inside the brass tubing. I read how to do this on a site somewhere I'll look for the link and post it for ya...

 

[flareside_thunder]

Hmm, cool theory.

 

[393clevor]

http://www.diyporting.com/Sleeves.html

 

[flareside_thunder]

Ahhh, that's cool.

 

[money_pit]

I would psi test a head before doing all that port & chamber work.