383 Stroker (432) Build - Mopar Muscle Forums at Mopar Muscle Magazine

383 Stroker (432) Build

  
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383 Stroker (432) Build

 
SuperBee69 SuperBee69
New User | Posts: 26 | Joined: 02/08
Posted: 03/17/08
05:19 PM

In the May 2006 article 383 Stroker Build to 432, ~500 HP were achieved and in the follow up Part 2 article ~ 625 HP were achieved.  Is this  typical numbers for similar builds?  I'm preparing to build a similar stroker and wanted to get an understanding what to expect.  

 
BadFish BadFish
Moderator | Posts: 307 | Joined: 01/07
Posted: 03/19/08
06:31 AM

I didn't write that article, but those sound like good numbers based on what I read and my experience. Remember that power is greatly dependent on compression, cam, cylinder head selection, induction, etc.

The low deck/440 crank combination is a very good bottom end to start with. It has a relatively long rod, and light pistons. I've had very good luck with the 400block/440 crank engines in both street and race applications. These are kind of a well-kept secret, as they use a lot of factory parts and run very strong.

If you aren't worried about the numbers matching, I'd recommend finding a 400 block to increase displacement to 451 cubic inches. Externally it'll look like a 383.  

 
MOPAR1962 MOPAR1962
User | Posts: 148 | Joined: 02/08
Posted: 04/08/08
03:02 PM

I think you want the 383 you already have but the main webbing on these blocks is very weak .290 taken from 50 blocks around the main bearings. I wouldnt push it past the 600hp mark .440 source.com  

 
MOPAR1962 MOPAR1962
User | Posts: 148 | Joined: 02/08
Posted: 04/08/08
03:04 PM

400 block would be best thickest main webbing of all mopar blocks ever built  

 
MOPAR1962 MOPAR1962
User | Posts: 148 | Joined: 02/08
Posted: 04/08/08
03:06 PM

by gosh, build yourself a 426 383 hemi, heh  

 
MOPAR1962 MOPAR1962
User | Posts: 148 | Joined: 02/08
Posted: 04/08/08
03:17 PM

I thought the buildup stunk as the buildup didnt even use main studs or aftermarket caps, much less block filler. It shows what kinda hp you can expect but it wont be racing for long with mods they did.  

 
AndyF AndyF
New User | Posts: 30 | Joined: 12/08
Posted: 12/08/08
11:58 AM

Mopar1962, you must not have bothered to read the article as it was fairly clear in there that ARP main studs were used.

The 500 hp output was with 906 heads and the 600+ hp output was hit when Indy heads were installed.

A 400 block would be a better choice, especially when using the Indy heads since the 383 block isn't that strong on the bottom end.  A better combination when using a 383 block would be to stick with a standard port head such as an Edelbrock Performer RPM.  

 

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