400 Stroker AKA 434

What is your goal horsepower?

I think a conservative estimate is around 500hp/tq. He has an engine dyno so we will know before putting it in the car. It would have been easy to put a cam getting a lot more but it would have narrowed the powerband and taken it to a much higher rpm. This will get large amounts of power at low rpm and keep the tq through the rpms.

Gary

Way to go Gary, this is a good project.

I've got 2 questons. Did the issue regarding the "lagging" of the head flow numbers get addressed by CHI; and what intake will you be using, how are you adapting it?

George

George, If you look at the flow numbers, the lower numbers are a slightly smaller quite a bit larger further open. Right off I doubt it would be that big of a deal BUT....Tim went ahead and releave the materal around the seat which was the root which should return the numbers.

Intake is our next step. I sent him a new Weiland for the 400 but there are some issues. I'll let you know how it goes.

I have talked about how good a 400 would be for the Pantera. I figured it was time to put my $ where my mouth was.

Gary

Out of curiosity, why a 434 instead of the more common 427?

This is a 400 stroker which is almost identical to the Cleveland. I think it has a lot of potential and has largly been over looked. More because I wanted to do a 400.

Gary

Got one!



Ain't it cool!

Gary

Gary,

It is pretty cool! Since this is an unusual buildup, try to take as many pictures of the 'deviation points' as possible as you go along. Broaden our horizons!

Michael

I will, if we can get a regular source for bellhousings it would make it a natural choice. I am going to take several measurements of my cleveland before I remove it so I can make sure I get everythign to fit as needed.

Gary