need pointers on 383 build - Hot Rod Forum : Hotrodders Bulletin Board -- Hot Rod Forum

Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine
User Name
lost password?   |   register now

LinkBack Thread Tools
  #1 (permalink)  
Old 10-30-2008, 09:20 PM
Registered User
Join Date: Oct 2008
Location: Fla
Posts: 5
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
need pointers on 383 build

this is what Ive got...

-4 bolt main 383 - planning on valley girdles if it sounds like a good idea
-forged pistons/rods, cast crank
-8 brodix heads, Ti valves/retainers/locks.
-11:1 cr, closer to 10.5:1 dcr
-475# open/175# closed springs, don't want to go too high for the solid lifters but im not sure if theyll be enough
-hv1000 brodix intake
-750 mighty demon
-1.6 full roller rockers
-planning on a 'radical' solid lifter cam (don't know much about specs, ill call all the manufacturers for recommendations then buy the average like i have before)
-3in fender-well headers
-93 octane...?

im not super worried about target rpm/hp/tq stuff too much, ill build the tranny according to what the engine dynos, but i would like to see 7000 rpm with a little power if it'll hold up

might be going in an s-10 if i can afford to build it after the engine is done
-manual th350, ill learn about torque converters when i get there
-something to get traction
-loud, fast, spinning tires, occasional 1/4 mile.

im looking to be overbuilt for street use but it'll be more of a toy/weekend speeding ticket machine

any recommendations or '*** this is better dont do that dumb *** go buy this' would greatly be appreciated

dont hold back

OH!!! AND the max over bore is 60 over... is this too much for a 60 over block?

Reply With Quote Quick reply to this message
Sponsored Links
  #2 (permalink)  
Old 10-30-2008, 09:52 PM
Last photo:
Join Date: Sep 2006
Age: 57
Posts: 1,681
Wiki Edits: 0

Thanks: 3
Thanked 61 Times in 56 Posts
Using Ti valves and skimping on a cast crank. And if your going .060 over that will be a 388.

If your looking for a good block you may want check into the Dart SHP
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 10-30-2008, 11:39 PM
327NUT's Avatar
Registered User
Last photo:
Join Date: Dec 2004
Location: So. Utah
Age: 70
Posts: 3,413
Wiki Edits: 0

Thanks: 0
Thanked 123 Times in 110 Posts
What CNC said........why go to all that expense and use a cast crank?
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 10-31-2008, 03:05 AM
techinspector1's Avatar
Last wiki edit: DynoSim combinations Last photo:
Join Date: Oct 2005
Location: Zephyrhills, Florida, USA
Age: 75
Posts: 15,456
Wiki Edits: 326

Thanks: 1,546
Thanked 2,077 Times in 1,606 Posts
10.5 DCR on 93 octane? I don't think so. And with 11.0 SCR, you'd have to close the intake valve at 15 degrees ABDC @ 0.050" tappet lift to achieve 10.5 DCR. The smallest Crane Cam I can find closes the intake at 16 degrees. Please read the description in the upper right......
It is fun to play "what-if", but you may want to do some more reading before putting your revised combination together.

One other thing, be sure to specify roller lifters on your revision. Flat tappets wouldn't make it through break-in with those springs. And shop around for some unobtanium pushrods.

Last edited by techinspector1; 10-31-2008 at 03:49 AM.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 10-31-2008, 11:17 AM
Registered User
Join Date: Oct 2008
Location: Fla
Posts: 5
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
i got an AMAZING deal on the heads ($700!!!)and they already had the Ti valves, and the 383 short block is from my previous set up. i rechecked the pistons ive already got and theyll put me at 11.5:1 so im going to have to swap them out for sure. ill get them to run me at 10:1 so things arent as complicated.

soooo im thinking a new block and forged crank will be worth the wait.

no sense in building an engine that doesnt meet my goals.

so i guess im done for now till i can get the block/crank.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 10-31-2008, 02:21 PM
Registered User
Join Date: Oct 2008
Location: Fla
Posts: 5
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
well i think ill stick with the short block ive got and rebuild that after im done with the top end

some more q's

if i go with solid rollers i can get stronger springs right?
vertical or horizontal stabilizers for the lifters? are there any pros n cons?

are valve stud girdles worth the money for a 7000max rpm engine?
Reply With Quote Quick reply to this message

Recent Engine posts with photos

Quick Reply

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Please select your insurance company (Optional)


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
383 build Novaguy383 Engine 14 01-14-2012 01:21 PM
how to build a 383 chevy stroker? chevy4x4man Engine 3 04-17-2008 10:15 AM
I Got the go ahead...New 383 Build 65Guera Engine 1 02-12-2008 08:06 PM
a budget 383 stroker build using a stock 400 GM Crank Mustangsaly Engine 7 10-15-2007 12:57 PM
How to build a 383 stroker JAKE 68 GMC Engine 15 05-30-2006 01:28 PM

All times are GMT -6. The time now is 01:58 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999 - 2012. All Rights Reserved.