I've had plans of doing a 422 over the winter. Now I've been seeing more 4.125 cranks and bores of more then 4.125. Is it worth it to go 434 for a mainly street driven car? Does durability start to be become and issue with the longer strokes and bigger bores?

 

Gee poor you .... having to decide between a 422 and a 434 . How do you take all the stress in your life ?! <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

 

bigger is better!

sounds like we are going to have fun at the track this spring! anxiously awaiting mt mti 422!
about 3 more weeks....

 

422 is PLENTY BIG. Just match it with the best heads and matched aggressiv cam that you can afford. <img border="0" alt="[Fluffy]" title="" src="graemlins/fluffy.gif" />

MTI 427 Roadster <img border="0" alt="[Corvette]" title="" src="graemlins/corvette.gif" />

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Racehead:
<strong>Gee poor you .... having to decide between a 422 and a 434 . How do you take all the stress in your life ?! <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Hehehe plenty of stress every time I gotta tell the girlfriend that we're staying in again so I can build my engine. I think I'm gonna settle for the 422 for now.

 

Just a word of advice. Dont "settle" for anything. get what you really want. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

 

When you refer to a 422, I assume you're planning to bore/stroke the 6-litre CI block. What is the exact bore and stroke you're using to calculate 422 CID?

 

Plans right now are to get an ARE resleeved block with a 4.100 bore and use my 4" crank. I think that equals 422. HEHEHE don't make fun of my 4" crank guys lol

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by TanRchy:
<strong>Just a word of advice. Dont "settle" for anything. get what you really want. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I just don't want to sacrifice reliability for a little extra power. More power is great but not if I'm always working on it.

 

It's a car. You're already always working on it no matter what. <img border="0" title="" alt="[Razz]" src="gr_tounge.gif" />

In thory your larger stroke should bring the peak HP RPM down a touch, right? That should improve reliability. Of course, reliability is often a factor of how you drive your car, not it's bore/stroke measurements.

Is there anything else I can say that will push you toward the bigger inces??? <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

 

422ci is plenty big. Some of us just have 434ci setups to be different <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

-Tony

 

The 4.1 bore and 4.125 stroke crank would also be a nice combo. <img border="0" alt="[devil]" title="" src="graemlins/gr_devil.gif" />

If you already have the 4 inch stroke crank I wouldnt bother selling it to get something else hehe. If you can trade it for a 4.125 stroke crank I would definitely do that <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

Cheers,
Chris

 

Neither.
4.19" bore
4.125" Stroke
455 cu. in.!! <img border="0" alt="[Fluffy]" title="" src="graemlins/fluffy.gif" />