327 stroke it or buy 383 short block - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- 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
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 11-09-2010, 12:13 PM
Registered User
 
Join Date: Nov 2010
Location: florida
Posts: 7
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
327 stroke it or buy 383 short block

i have a 327 that will go in a jeep wrangle i am building what would be more costly to build the 327 or start with a 383 short block i am looking for 400+ hp the jeep will have 40"tires and 488 gears with a 350trans and 205tcase it will be street driven on weekends and on the trail it will be it will be tbi not carb any thought's i want to keep the build in the 5.000 range and use a gen1 sbc

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 11-09-2010, 12:16 PM
How fast is fast enough?
 
Last photo:
Join Date: Jun 2005
Location: St. Louis, MO
Age: 29
Posts: 9,112
Wiki Edits: 0

Thanks: 17
Thanked 335 Times in 315 Posts
The cost will be about the same. For $5,000 you can buy a pretty nice crate engine though, or a good LT1 with the computer and everythig for a LOT less.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 11-09-2010, 02:34 PM
my87Z's Avatar
Veteran/Firefighter-EMT-I CRT
 
Join Date: Mar 2009
Location: maryland
Age: 31
Posts: 1,685
Wiki Edits: 0

Thanks: 6
Thanked 11 Times in 11 Posts
i was originally going to say build up the 327 until i saw that you want more than 400hp with 40" tires. now i would say build the 383 cause it wont have to be built quite as radicle (not that a 400hp 327 is radicle, just wont be as street friendly) the 383 will make more tq than the 327 will all day long, and with a mud vehicle or truck with tall tires you will want as much tq as you can get
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 11-09-2010, 03:55 PM
Registered User
 
Join Date: Nov 2010
Location: florida
Posts: 7
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
if i go with a 383 short block what parts off the 327 can i use it has powe pack heads i will chang the intake a go eith a tbi 4 barl set up or get a stroker kit for the 327
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 11-09-2010, 04:41 PM
my87Z's Avatar
Veteran/Firefighter-EMT-I CRT
 
Join Date: Mar 2009
Location: maryland
Age: 31
Posts: 1,685
Wiki Edits: 0

Thanks: 6
Thanked 11 Times in 11 Posts
i would scrap the whole TBI idea all together, i wouldn't use anything from the 327, i would sell it as is, a lot of people like the 327 and they are getting to be rare, they will normally fetch more money than a 350, so that is the route i would take. if you want to get the 383 short block or build it your self that is up to you. but i wouldn't use any of the parts from the 327
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 11-09-2010, 06:59 PM
Registered User
 
Join Date: Nov 2010
Location: florida
Posts: 7
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
i was thinking of the holley commander 950 tbi kit the 700 or 900 cfm at sumit. Carbs dont like to run at steep angles or am i wrong?last car i had with a carb was my 77 z28 it ran good but did not like the could starts.this jeep will see a lot of off road and hill climbs.
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 11-09-2010, 09:29 PM
327NUT's Avatar
Registered User
 
Last photo:
Join Date: Dec 2004
Location: So. Utah
Age: 68
Posts: 3,283
Wiki Edits: 0

Thanks: 0
Thanked 89 Times in 80 Posts
Look at www.yearone.com, they have a 350 crate engine WITH a dyno sheet for $2995. As said before, forget the TBI and install a Holley "Off Road Truck Avenger" 670/770 carb. They are built just for that purpose, Summit # HLY-0-90670 or 90770...bout $400

Last edited by 327NUT; 11-09-2010 at 09:37 PM.
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 11-10-2010, 06:01 AM
cobalt327's Avatar
WFO
 
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Location: Atlanta
Age: 59
Posts: 5,037
Wiki Edits: 1616

Thanks: 128
Thanked 597 Times in 546 Posts
Quote:
Originally Posted by steve35
if i go with a 383 short block what parts off the 327 can i use it has powe pack heads i will chang the intake a go eith a tbi 4 barl set up or get a stroker kit for the 327
The 327 will be a 2-bolt if original. A 4-bolt would be preferred for use w/a 3-3/4" stroke crank unless it won't see much RPM and is really well balanced- which should be done anyway.

The TBI will definitely handle rough, steep off road 'abuse' better than floats will, but the cost difference is significant. Unless you plan on some really hard trails, you might want to use the Truck Avenger like 327NUT mentioned. Tech @ BG has been around lately, maybe he'll chime in w/a carb recommendation.

Power Pack heads are out for anything but a restoration, IMHO. They were just OK back when they were new- now they are not worth fooling with- especially not worth putting on a 383-sized engine.

If I were going to do an engine for the Jeep, I would use a 4-bolt L31 5.7L Vortec engine as the foundation. I would keep it a 350, reuse the Vortec's and I would cam it for torque. If and when "more" was needed, a 3.75" crank and pistons would be used.

Only if it needed a crank anyway would I go w/a 383- that is, unless money is no object. If THAT is the case, I'd use an aftermarket block and forged internals and build a 427 SBC and never look back.

The heads will make or break the build. Whatever you decide to build, do yourself a big favor and start w/at least Vortec heads. There are many heads that are better than Vortec's- but they are decent, and are better than anything that preceded them from the factory production line.

If you need to cut costs, do it anywhere but the induction side of things. Use stock covers, brackets, pulleys, a simple correctly curved HEI ignition w/a good module and coil (maybe add a MSD 6AL), even an offshore knockoff of the RPM intake, if need be.

But- GOOD HEADS!!
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 11-10-2010, 06:56 AM
How fast is fast enough?
 
Last photo:
Join Date: Jun 2005
Location: St. Louis, MO
Age: 29
Posts: 9,112
Wiki Edits: 0

Thanks: 17
Thanked 335 Times in 315 Posts
The Vortec 350 is a good candidate to use and you can use the stock fuel injection, give it a cam swap and a spring upgrade and you're ready to roll.

Another option is the LT1, which I really like for what it is. It'll bolt right in place of your 327, makes great power and has a good fuel injection setup. Just be sure to keep the distributor clean and dry.

Using a modern 350 will be a much better route to take than stuffing a 3.75" crank in an old and out dated 327.

Then again there are a LOT of crate engines on the market...
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 11-10-2010, 07:37 AM
Member
 
Last photo:
Join Date: Dec 2004
Location: San Antonio, Texas
Age: 50
Posts: 4,023
Wiki Edits: 0

Thanks: 0
Thanked 23 Times in 23 Posts
get a complete 5.7 vortec with factory roller cam (96+) with the computer. from fan to flexplate. should be able to get these for $1000 with the computer.

these engines make 275hp stock. add some headers, message the heads a bit, and install a mild cam and you can easily make 325 to 350hp.

40 inch tires and a 4.88 gear is like a 3.42 gear with 28's. so, you can't get to crazy with the cam and stall. I would shot for 375hp max with a 2600 stall, or 325 to 350hp max with the stock converter.

If you need 400hp really badly, then upgrade to a 383 or 406. But the cost will go up.
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 11-10-2010, 07:40 AM
my87Z's Avatar
Veteran/Firefighter-EMT-I CRT
 
Join Date: Mar 2009
Location: maryland
Age: 31
Posts: 1,685
Wiki Edits: 0

Thanks: 6
Thanked 11 Times in 11 Posts
Quote:
Originally Posted by steve35
i was thinking of the holley commander 950 tbi kit the 700 or 900 cfm at sumit. Carbs dont like to run at steep angles or am i wrong?last car i had with a carb was my 77 z28 it ran good but did not like the could starts.this jeep will see a lot of off road and hill climbs.


look into Holley's truck avenger carbs, they are made to run at the steep angles that you are talking about
Reply With Quote Quick reply to this message
  #12 (permalink)  
Old 11-10-2010, 07:59 AM
cobalt327's Avatar
WFO
 
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Location: Atlanta
Age: 59
Posts: 5,037
Wiki Edits: 1616

Thanks: 128
Thanked 597 Times in 546 Posts
Quote:
Originally Posted by my87Z
look into Holley's truck avenger carbs, they are made to run at the steep angles that you are talking about
And they have annular boosters on the 670 and 770 CFM models.
Reply With Quote Quick reply to this message
  #13 (permalink)  
Old 11-10-2010, 07:59 AM
Registered User
 
Join Date: Nov 2010
Location: florida
Posts: 7
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
first off i just want to thank you all for your help.
i am going to use the 327 for now it runs good just goin to clean it up and new seals and gaskets also going to upgrade it a bit with a Holley truck avenger 670cfm carb,edelbrock performer air gap intake, and a msd ignition system 6al-2 kit from summit electric water pump!
Then i will start looking for parts to build a 383 or maybe an LS1, but i have to do more research on the LS1 due to I do not know much about them(LS1). But the Gen1 sbc has always been good to me! Also it is easy to work on and find parts! Thank you again for your comments and help! I will post pics of 327 as soon as I get it put back together! For now it is in parts on my work bench! I will post the part numbers of the parts i'm thinking of a! holley carb part number 0-90670 msd kit 06-0015 intake 26011 water pump 66225B all from summit

Last edited by steve35; 11-10-2010 at 08:26 AM.
Reply With Quote Quick reply to this message
  #14 (permalink)  
Old 11-11-2010, 10:03 AM
Registered User
 
Join Date: Nov 2007
Location: utah
Posts: 416
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by steve35
i have a 327 that will go in a jeep wrangle i am building what would be more costly to build the 327 or start with a 383 short block i am looking for 400+ hp

Neither. I would simply source a good 350 4BM core and go from there. I see them around for $50.00 to $100.00 all the time. And you could build a 400 hp 350 rather easily and for considerably less $ than a 383. (Strokers are nice though.. )
Reply With Quote Quick reply to this message
  #15 (permalink)  
Old 11-11-2010, 10:14 AM
Registered User
 
Join Date: Nov 2007
Location: utah
Posts: 416
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by steve35
first off i just want to thank you all for your help.
i am going to use the 327 for now it runs good just goin to clean it up and new seals and gaskets also going to upgrade it a bit with a Holley truck avenger 670cfm carb,edelbrock performer air gap intake, and a msd ignition system 6al-2 kit from summit electric water pump!

I didnt see this post. Not sure why you want 400+ hp in a jeep, but if it were my jeep I would consider mpg a factor for trail purposes. A well built 327 will make nearly the same torque as a 350, just does it at a slightly higher RPM, and they always do better from a mileage standpoint.

Vortec heads, a small cam and you would make some very respectable bottom end, TBI is excellent for 4 wheeling and also contributes to torque and MPG..

Just a little food for thought.
Reply With Quote Quick reply to this message

Recent Engine posts with photos

Quick Reply
Message:
Options

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:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

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
283 0r 327 small block chevy trockkid41 Engine 35 11-10-2010 10:08 AM
Long block short block fitted block what do opelitis5 Hotrodding Basics 4 01-10-2010 06:12 PM
383 short block v8crazy Engine 7 05-08-2009 10:51 AM
Chevy 327 with a 3.48" stroke??? Chevelle Crazy Engine 9 01-12-2007 10:52 AM
4.00 inch stroke crank in a stock gm 400 block sb72elcamino350 Engine 27 12-24-2006 11:17 AM


All times are GMT -6. The time now is 06:35 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.