Hot Rod Forum : Hotrodders Bulletin Board

Hot Rod Forum : Hotrodders Bulletin Board (http://www.hotrodders.com/forum/)
-   Engine (http://www.hotrodders.com/forum/engine/)
-   -   Chrysler 400 Vs. 440 into "A" Body (http://www.hotrodders.com/forum/chrysler-400-vs-440-into-body-212827.html)

Newf Wit a 440 01-19-2012 11:37 AM

Chrysler 400 Vs. 440 into "A" Body
 
Hi All,

I have an oppourtunity to get a 78' 400 motor for real cheap $200. This is a running motor out of a NewYorker I believe. I wanted to ask the question how much easier is it to put a 400 into an A body VS. a 440? Also what machining is involved? I have a 440 steel crank which I need to grind anyways, and put it into the 400? Other than that I was going to use the factory rods out of the 400 and just replace the pistons, and heads to get my compression up to 9.5-10:1. I'm looking to make 450HP with the build but if it will cost a lot more to do the 400 I'll just stay with the 440. Your thoughts??

Joe

Centerline 01-19-2012 03:19 PM

It will ultimately cost you less to just do the 440. As far as installing it in your "A" body you'll need to go HERE to pick up the correct motor mounts etc.

Centerline

HotRodsAndHemis.com

"Running a small block Chevy is like having a girlfriend who wears a push-up bra. The numbers look great, but once you get under the hood, there's not as much there as you thought." - Anonymous

RWENUTS 01-19-2012 04:19 PM

X2 on the link from centerline. Awesome mounts. Super quality and great people to deal with. Their headers are the best you can buy too. I used them and the mounts in my 64 Fury.

Newf Wit a 440 01-19-2012 05:49 PM

Quote:

Originally Posted by Centerline
It will ultimately cost you less to just do the 440. As far as installing it in your "A" body you'll need to go HERE to pick up the correct motor mounts etc.

Centerline

HotRodsAndHemis.com

"Running a small block Chevy is like having a girlfriend who wears a push-up bra. The numbers look great, but once you get under the hood, there's not as much there as you thought." - Anonymous

I'm curious as to why it would cost me more to do the 400? I figured I needed to get the crank ground anyways, other than that I thought most people did their own work inside the block to accomodate the rotating assembly? The 440 came out of a 78'Van so the whole thing besides the Block is scrap metal. Thanks for your input.

Joe

Centerline 01-19-2012 07:02 PM

Quote:

Originally Posted by Newf Wit a 440
I'm curious as to why it would cost me more to do the 400? I figured I needed to get the crank ground anyways, other than that I thought most people did their own work inside the block to accomodate the rotating assembly? The 440 came out of a 78'Van so the whole thing besides the Block is scrap metal. Thanks for your input.

Joe

Not only do you have to have your crank done (as you would on most rebuilds) but you'll have to have the mains ground down to the correct size for the 400 block as well as the counter weights cut slightly for clearance. Then you'll need a set of aftermarket pistons. If you do the 440 you don't have the extra machine work on the crank and you can use stock HP pistons. You can figure doing the 451 stroker will cost you about $500 more for the short block than doing a 440. Don't get me wrong, a 451 is a great motor especially if your going racing but for street duty the 440 will be plenty powerful enough. Considering that a stock 440 back in the day cranked out around 375 hp, getting another 75 horses or so isn't all that difficult or expensive. A late 70's 400 will cost you a lot more to get to that 450 hp. mark since its stock hp was in the 190 range. Also just because your 440 came out of a van doesn't mean everything besides the block is scrap. It all depends on the heads. If they're 452 castings they'll be fine. The ONLY major components you'll need to replace will be pistons and those won't have to be anything special. Standard hp 440 pistons are capable of getting you to your goal with the proper cam, carburation and exhaust. It's your choice of course, just be prepared for the 451 to cost you a little more in machine work and a bit more for the correct pistons.

Centerline

HotRodsAndHemis.com

"Duct tape is The Force: It has a light side, a dark side, and it holds the universe together." - Anonymous

Newf Wit a 440 01-19-2012 08:47 PM

Quote:

Originally Posted by Centerline
Not only do you have to have your crank done (as you would on most rebuilds) but you'll have to have the mains ground down to the correct size for the 400 block as well as the counter weights cut slightly for clearance. Then you'll need a set of aftermarket pistons. If you do the 440 you don't have the extra machine work on the crank and you can use stock HP pistons. You can figure doing the 451 stroker will cost you about $500 more for the short block than doing a 440. Don't get me wrong, a 451 is a great motor especially if your going racing but for street duty the 440 will be plenty powerful enough. Considering that a stock 440 back in the day cranked out around 375 hp, getting another 75 horses or so isn't all that difficult or expensive. A late 70's 400 will cost you a lot more to get to that 450 hp. mark since its stock hp was in the 190 range. Also just because your 440 came out of a van doesn't mean everything besides the block is scrap. It all depends on the heads. If they're 452 castings they'll be fine. The ONLY major components you'll need to replace will be pistons and those won't have to be anything special. Standard hp 440 pistons are capable of getting you to your goal with the proper cam, carburation and exhaust. It's your choice of course, just be prepared for the 451 to cost you a little more in machine work and a bit more for the correct pistons.

Centerline

HotRodsAndHemis.com

"Duct tape is The Force: It has a light side, a dark side, and it holds the universe together." - Anonymous

Thanks for the explanation, that is definitely worth thinking about, especially if it isn't going to be any more HP. also I don't think the install into an A body is going to be that much more trouble for the 440 if I have to get headers anyways, I think its only a half inch difference in height on the motor and 40lbs. Maybe that money would be better suited to go towards some Ally heads later. I do have the 452's and I could get a port temp kit and do them myself for the meantime. Thanks again, I think you saved me a few bucks.

Joe

SSedan64 01-20-2012 09:02 AM

Mopar / Chrysler 400 & 440 Info
 
Good 400 / 440 Info here >> http://www.440source.com/blockinfo.htm
Other Parts Info > http://www.440source.com/info.htm
http://www.440source.com/

Newf Wit a 440 01-20-2012 08:43 PM

Quote:

Originally Posted by SSedan64

Thanks for this! Great stuff!

Cheers,

J


All times are GMT -6. The time now is 10:00 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.