What are the differences, in relation to strength, between the 422 and a 427? I see alot of 422's getting sprayed, but not any 427's. Would the 427 handle a 250-300 shot, assuming it was built up for that purpose?

I see the Ling 427 TT is putting out 700 HP, so the block appears to be able to handle power in the range that I am thinking.

School me..

 

The reason for 427, is because it reminds me of the old school big block era..

 

so whats the specs for the aluminum 427 <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />

 

Nasty N8, I thought most of the 422's on spray were aluminum blocks? I know MTI's are.

 

I plan on a 200 shot with an ARE block. They told me it will handle that and a whole lot more.

 

Your right that most of MTIs 422 are resleeved alumimum blocks which get sprayed. Because i couldn't stomach a possibility of a dropped sleeve and for better peace of mind MTI is building me a 427 Ironblock with the same specs mentioned above, that being a 4.060 overbore and 4.125 crank. Even though i could spray this engine up to 150HP no problem this baby will stay naturally aspirated. Just did a ton of research on this before finally pulling the trigger on my MTI LQ4 427 and here is what i learned.

Many guys doing 422s with other builders are going with ironblock for same strength reason i am. What would be most durable for big doses of N20 and still maintain 420plus cubes, would be an ironblock with 4.030 bore and 4.125 crank which would give you 420.9 cubes or better yet, 4.035 bore and 4.125 crank=422 cubes. By going this route on the ironblock you could spray the **** out of it (up to 250HP+) as long as you don't take the bore much past 4.035 or 4.04.

Using the Darton resleeved block discussed in length on another thread here, that would also allow major spray and big cubes as its very durable. Of course, many have successfully sprayed 422 cubes resleeved aluminim block such as the one used on MTI's famous 422 (Z07) stroker ,but a few poor souls have had a sleeve drop cauing major headahes and heartache! <img border="0" alt="[barf]" title="" src="graemlins/gr_barf.gif" />

Best bet for strenghth if you going forced induction or N20 in my honest opinion would be to use the ironblock and go with 422 cubes as set forth above or of course, if you can afford the extra $ the Darton Resleeved block.

Good luck.

MTI 427 C5 Roadster <img border="0" alt="[Corvette]" title="" src="graemlins/corvette.gif" />

 

All of the ARE blocks use the Darton sleeves. So there is no additional cost. I know that the the record holding ARE Camaro uses a 422 that cranks out about 1000 hp, so that's alot of juice going through that block, with no dropped sleeves yet. I was just wondering if the 427 would be compromising strength. It sounds like with the proper sleeves, and the rest of the block built up, that it would handle the 250 shot. Block would have better main bolts and of course head studs, in addition to an O ringed block. I only want 750-800 HP <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

 

Most 422 you see w/ nitrous are iron blocks,and 427 are usually aluminum. It also depends on how they are building 427`s, 4.060 bore and 4.125 stroke is 427 on an iron block you could spray that if built right. Also testing a new sleeve that should be strong enough to throw what you want at it.
Nate

 

It all depends how you spray and how well your engine is built. Im sure on a well built block, like with the Darton sleeves, and with a progressive controller you could get away with spraying alot.

 

I was told by ARE that my aluminum motor can take a 250 shot all day long. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

 

"I was told by ARE that my aluminum motor can take a 250 shot all day long. "

That would be a wild ride!! Let us know how that works out. <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />

 

I know someone who has an MTI 422. It makes about 550 on motor and it makes over 700 on spray. And he is always spraying it. No issues that I am aware of...

 

4.100 bore aluminum is safe for spray. 4.125 bore alum is not(but new sleeves will be with no problems)4.100 bore and 4.000 stroke=422 4.125 bore and 4.00 stroke=427 Now put that with a bigger stroke and you have more CID and stroke will not affect wether or not you can spray.
Nate