334 stroker or not? - 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> Hotrodding Basics
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 04-30-2012, 11:56 AM
Registered User
 
Join Date: Apr 2012
Posts: 7
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
334 stroker or not?

I profess to know very little about engine building. With that out of the way, the engine going into my 84 GP, which is going to be a cruiser, not a racer. It has the following:
305 block from Z28
Swirl port heads from a 93 pickup
9/16 crank
bored 40 over (not sure if that is the correct terminology)
Lunati barebones cam and lifters
dish pistons
flowtech headers
Any problems with this? Also what kind of power will it generate?
(stock rear end and tranny by the way)

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 04-30-2012, 04:27 PM
68NovaSS's Avatar
Hotrodders.com Moderator
 
Last wiki edit: Working with chromed bolts
Last journal entry: New to me T-Bucket
Last photo:
Join Date: Sep 2002
Location: Nine Mile Falls, Washington
Posts: 5,217
Wiki Edits: 9

Thanks: 100
Thanked 130 Times in 121 Posts
Need much more information for a power guestimate. What heads, chamber volume, what piston dish volume in cc's, what cam specs, lift, duration, what intake manifold, carb, what exhaust, style, size, what ignition?

9/16's crank?
__________________
Boost adds dignity to what would otherwise be a vulgar brawl...

Midnight Sun Street Rod Association
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 04-30-2012, 08:06 PM
zildjian4life218's Avatar
Listen and Learn
 
Last wiki edit: DIY junkyard electrical fan controller
Last journal entry: SBC 305 Twin Turbo
Last photo:
Join Date: Dec 2008
Location: WNY/Rochester, New York
Age: 25
Posts: 1,588
Wiki Edits: 7

Thanks: 44
Thanked 8 Times in 8 Posts
Quote:
Originally Posted by 68NovaSS
9/16's crank?
Took me awhile to figure that out.. im assuming 3.562" stroke crank... but yeah we need way more details.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 04-30-2012, 09:31 PM
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 kewpie79
I profess to know very little about engine building. With that out of the way, the engine going into my 84 GP, which is going to be a cruiser, not a racer. It has the following:
305 block from Z28
Swirl port heads from a 93 pickup
9/16 crank
bored 40 over (not sure if that is the correct terminology)
Lunati barebones cam and lifters
dish pistons
flowtech headers
Any problems with this? Also what kind of power will it generate?
(stock rear end and tranny by the way)
The heads have nominal 64cc chambers- way big for making decent compression w/a 305 or 334.

BTW, a 334 is a 3-3/4" crank in a 305 (0.030" over, I believe). The idea of stroking a 305 is not a particularly good plan, when 4" bore hydraulic roller capable blocks/short blocks/Vortec L31 long blocks are so easily and cheaply available.

If it was me, I'd take the guts out of the 305, get a different set of pistons and install it all back in a 4" bore block. If you want to reuse the cam (keep the lifters on the same lobes they were on in the 305), you can use any block (327 or 350, except the Gen 2 LT1/4 engines) but I'd recommend a hydraulic roller block so if in the future you wanted to upgrade to a roller, you could do so easily.

The stock differential is weak, you will need to upgrade if you make any real power and have traction.

You might want to read up on the subject.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 05-01-2012, 11:21 AM
Registered User
 
Join Date: Apr 2012
Posts: 7
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I do know there are 9/16 cranks, did a search on here to learn all about them.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 05-01-2012, 12:09 PM
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 kewpie79
I do know there are 9/16 cranks, did a search on here to learn all about them.
That's it? That's all that you have to add?

Using "9/16" is an antiquated way of describing a stroker crank size. I know the term is still in use, but if you want to talk stroker cranks- especially SBC stroker cranks (and not early Hemi or flathead Ford, etc.)- you might want to use the more common decimal/fractional measurements, i.e. 3.48" stroke is stock 350/305/267 crank size, 3.75 (or 3-3/4" if you prefer) is the stroke of a 400 SBC and is by FAR the most common size stroker crank to use in a 4" bore SBC block (327/350), but you'll be hard pressed to find anyone using "3/4 stroker" when describing it.

Unless you're trying to fit into an oddball class displacement rule or trying to cheat, there's little point in not using as much stroke as can be used w/o needing to jump through too many hoops (like is required to use a 4" stroke in a SBC, for instance). That means a 3.75" stroke. Which is (as I've already said) what's needed to get 334 cid out of a 305 block. The same crank w/different pistons will get you 383 cid from a 4.030" bore SBC.
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 05-01-2012, 01:23 PM
Registered User
 
Join Date: Apr 2012
Posts: 7
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I guess you failed reading and comprehension in school. Read the first line of the post .
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 05-01-2012, 01:38 PM
Silverback's Avatar
Boost Retard
 
Last photo:
Join Date: Mar 2007
Location: DC Metro
Posts: 373
Wiki Edits: 0

Thanks: 1
Thanked 2 Times in 2 Posts
That depends on your goals. The cheapest approach to getting more power in a decent cruiser is to find a 350 or someone's abandoned project and swap it in, it will bolt in the place of the 305 with no other changes.

If you have a reason for keeping the 305, then go for it (I've always wanted to build a stroker 305 just to tinker with some of the advantages of the small bore 305 and see if I can get around the breathing problems, but that's a different discussion).

Things to note:
- the swirlport heads will be too big for good compression if they are off a 350, but fine if they're off of a 305. If they're off a 350 you'll probably want to get them milled to get the chambers down below 60cc. FWIW the swirlport design is actually an interesting complement to the stroker 305, which should help build torque and control detonation making for a surprisingly efficient engine.
- most aftermarket heads will not fit, anything with larger than 1.94/1.50 valves will be a problem.
- What year Z28? Be aware that they will use different balancers, flywheels, some gaskets... and the later heads will use the >86 intake pattern
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 05-01-2012, 03:52 PM
68NovaSS's Avatar
Hotrodders.com Moderator
 
Last wiki edit: Working with chromed bolts
Last journal entry: New to me T-Bucket
Last photo:
Join Date: Sep 2002
Location: Nine Mile Falls, Washington
Posts: 5,217
Wiki Edits: 9

Thanks: 100
Thanked 130 Times in 121 Posts
Quote:
Originally Posted by kewpie79
I do know there are 9/16 cranks, did a search on here to learn all about them.
If you mean a "3 - 9/16 stroke" crank, and know what it means, why didn't you just say it?

Quote:
Originally Posted by kewpie79
I guess you failed reading and comprehension in school. Read the first line of the post .
And then you throw more attitude? That statement was uncalled for, will not be tolerated. Take a timeout.
__________________
Boost adds dignity to what would otherwise be a vulgar brawl...

Midnight Sun Street Rod Association

Last edited by 68NovaSS; 05-01-2012 at 04:22 PM.
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 05-01-2012, 04:09 PM
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 Silverback
- the swirlport heads will be too big for good compression if they are off a 350, but fine if they're off of a 305.
Good point, I automatically assumed 5.7L heads.
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 05-03-2012, 05:27 PM
Registered User
 
Join Date: Oct 2011
Location: Mo
Posts: 148
Wiki Edits: 0

Thanks: 0
Thanked 6 Times in 6 Posts
A 10cc dish with proper (.040) quench, .030 overbore, 3.75 stroke and a 5.7 in rod yields 9.2:1 static compression with 64cc heads.
Reply With Quote Quick reply to this message

Recent Hotrodding Basics 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
383 stroker or 396 stroker crate engine augustine Hotrodding Basics 5 11-26-2011 11:12 AM
please help with my stroker shalashaska91 Engine 9 11-07-2007 08:54 PM
93 Mustang EEC-IV Code 334 door64 Engine 1 12-16-2006 08:32 PM
supercharged 334 stroker transam-man305 Engine 21 11-30-2004 05:18 PM
305 stroker or 350 stroker cragars Engine 3 02-11-2004 01:05 PM


All times are GMT -6. The time now is 02:48 AM.


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.