400 stroker or 440

demon1515 said

OK i have read all the comments here and i just come to a conclusion,
Lets be real here,
If he build the 440 it will last for ever no mater what he trow at it remember guys this is no race car here and he don't need 900 HP.
All in all a well built & tuned 440 will give him 450+ HP in a budget with more torque to spare than a 451,
Size is not to significant to take it in consideration,
Weight, neither,
So why take the inconvenience on doing such an engine when you can have what you need in the 440?

Buddy if you are not building a serious race only machine, save the head etches and build your 440 you will be more than happy with your end results and even in the 650 hp range it will last for years to come, if done properly.

Click to expand...

How do you figure it will give more torque? Compared to a stock 400 yes,but not to a 451. I'd say the 451 will give the same tq as a 440 and more h.p due to the light recip weight.

A 451 is every bit as rock solid and reliable as a 440. It's a MoPar! Seriously the bottom end is the same as a 440,but the 400 block is stronger. It's also lighter and physically smaller than a 440,being a B block Makes it easier to fit in a Dart.If you want real world comparisons go install a 440 and then replace it with a 400. Come back and tell us which fits better,lol!

Heck even a stock stroke 400 will give you over 500 h.p easily...it has the largest bore of any mopar engine and this helps a motor breath.

Im not a 440 hater by any means,but the advantages to a B block in a Dart are not as insignificant as you seem to think.

I cant remember the weights of the respective blocks but lighter is lighter! Even if it saves 50 lb's this is great! Weight savings in a street car are important too. Will show up at the pump in $$ saved..

Myself if given the choice I'll go for the 400 every time.