[Canadian78]

Im thinking of upgrading my motor later in. How much power would you consider safe with a sbc 400? Im thinking about possible adding some boost to it.

 

[ASH]

Im thinking of upgrading my motor later in. How much power would you consider safe with a sbc 400? Im thinking about possible adding some boost to it.

??
what block, crank , rods etc....

 

[Canadian78]

its just a stock 400 block 2bolt main. Just wondering how much the block it self will handle.

 

[JeffMcKC]

The block on a 650-700 Hp N/A 400 motor changing to a Dart will make 30 HP

Boosting it, save your money get a block

 

[Horndog]

The block on a 650-700 Hp N/A 400 motor changing to a Dart will make 30 HP

Boosting it, save your money get a block

X2

 

[spdrcr]

X2

x3. I found out the hard way

 

[mattson]

The block on a 650-700 Hp N/A 400 motor changing to a Dart will make 30 HP

Boosting it, save your money get a block

X4
You'll end up saving money in the end if you get a good block now!

 

[Lightners]

Mine is still holding in there (days are numbered I know),it makes 610 hp, and i've been spraying it with around 275ish...stock block (2 bolt w studs), and stock crank....yea I've got my fingers crossed...lol

 

[dizope]

Stock 400 blocks are garbage, been there done that.

Lightners, it's only a matter of time before you run over the crank...

 

[Lightners]

Stock 400 blocks are garbage, been there done that.

Lightners, it's only a matter of time before you run over the crank...

Yea, I know, hoping to make it thru this year.