[Scarebird]

I agree with HIS and Nick - the 455 breaks things and revving a motor with a 4 speed is where the fun is at.

[Nicks67GTO]

Originally Posted by Scarebird

I agree with HIS and Nick - the 455 breaks things and revving a motor with a 4 speed is where the fun is at.

Agreed. I guess another part of my thinking was that an honest 500 ft/lbs of tq is completely unmanageable on street tires at WOT, will allow for donuts in a parking lot at any moment, and pull like a train everywhere in the power band. Dave from SD told me my TQ curve would be very flat and broad with the combo too. I don't see a downside to going with the 400 for a stick car really?

[ta man]

Originally Posted by Nicks67GTO

Agreed. I guess another part of my thinking was that an honest 500 ft/lbs of tq is completely unmanageable on street tires at WOT, will allow for donuts in a parking lot at any moment, and pull like a train everywhere in the power band. Dave from SD told me my TQ curve would be very flat and broad with the combo too. I don't see a downside to going with the 400 for a stick car really?

I'm a big believer in more cubes is better...but in this case I think this 400 build will be great.Anybody that has ever dealt with Dave at SD knows that this will be quite an engine....Nick is he building the complete engine?This should be a smooth nice running street engine when done....but it will still do what is described aboveWhat was Daves estimate on power?450hp/500ft/lbs

[Nicks67GTO]

Originally Posted by ta man

I'm a big believer in more cubes is better...but in this case I think this 400 build will be great.Anybody that has ever dealt with Dave at SD knows that this will be quite an engine....Nick is he building the complete engine?This should be a smooth nice running street engine when done....but it will still do what is described aboveWhat was Daves estimate on power?450hp/500ft/lbs

500-525hp and 500 ft lbs

[Nicks67GTO]

Originally Posted by ta man

I'm a big believer in more cubes is better...but in this case I think this 400 build will be great.Anybody that has ever dealt with Dave at SD knows that this will be quite an engine....Nick is he building the complete engine?This should be a smooth nice running street engine when done....but it will still do what is described aboveWhat was Daves estimate on power?450hp/500ft/lbs

oh and ill be building it myself. I already have some of the parts, the rest i intend to buy from him. Ill get the machine work done locally and me and an old buddy will do the assembly/startup.

[Nicks67GTO]

BTW sorry for hijacking the heck out of this thread....

[ta man]

Originally Posted by Nicks67GTO

BTW sorry for hijacking the heck out of this thread....

Oops I thought you were the original poster...

[kookykrispy]

You stated you already have a 455. If it were me, I'd build that engine and don't look back. You can build a relatively mild 455 that will work fine with pump gas with easy to find inexpensive 6x heads and still have a torque monster. That big stroke will put a smile on your face every time you drive it.

The other guys are right that you'll need sticky tires to get all that torque to hook up and then once it does your stock drivetrain is not gonna last... so be prepared for parts to grenade if you bolt on slicks. might as well start saving for the good stuff now