350 street rod motor - 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 05-30-2011, 01:42 AM
Registered User
 
Join Date: Jan 2011
Location: texas
Posts: 141
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
350 street rod motor

OK I am trying to build a pretty hot motor for my 1/2 ton truck. It has 2.73 gears. And a t350 Amy builds or ideas welcome. Budget of about 3500
.. thanks. O and running on pump gas

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 05-30-2011, 11:06 AM
327NUT's Avatar
Registered User
 
Last photo:
Join Date: Dec 2004
Location: So. Utah
Age: 68
Posts: 3,292
Wiki Edits: 0

Thanks: 0
Thanked 91 Times in 82 Posts
Before you do anything to the engine get rid of the 2.73 gears, any high perf. engine will be a pig trying to turn those. Not knowing what "Hot" means i.e. the engine combination, if you're going for a hwy cruiser w/ a 3 spd trans then the 2.73's would work.

If you're going with a typical big cam, big compression around town rig install a set of 3.73 or higher gears and a loose converter. An engine combo is built by the application you intend for it to run in. In other words....more info is needed as to what you want to do with it.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 05-30-2011, 12:16 PM
Registered User
 
Last photo:
Join Date: Mar 2008
Location: Arkansas
Age: 51
Posts: 298
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
What are your expectations with this truck?
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 12-14-2011, 03:34 PM
Registered User
 
Join Date: Jan 2011
Location: texas
Posts: 141
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Going to drive it around town and cruise with it....nothen special no track or anything.....and the gears are Stayen want somethen. Good when cruising ....any info
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 12-14-2011, 03:45 PM
Custom10's Avatar
my KARMA ran over my DOGMA
 

Last journal entry: SS
Last photo:
Join Date: May 2009
Location: Saskatchewan, Canada
Age: 49
Posts: 1,101
Wiki Edits: 0

Thanks: 18
Thanked 30 Times in 26 Posts
Really the 273 gears gotta go if you want any type of "hot" motor. 327 has it right.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 12-14-2011, 04:00 PM
Registered User
 
Join Date: Jan 2011
Location: texas
Posts: 141
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
OK I have a new set of 4.10 gears....lets say I go with that ....now I have a vortec motor ....but don't know if the heads are good ( and before I get to far I know I have posted a lot on here but I have two motors ) one I am building realty mild the other a all out toy somethen that will scream
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 12-14-2011, 05:07 PM
techinspector1's Avatar
Senior Curmudgeon
 
Last wiki edit: DynoSim combinations Last photo:
Join Date: Oct 2005
Location: Hemet, California, USA
Age: 72
Posts: 13,083
Wiki Edits: 326

Thanks: 779
Thanked 1,057 Times in 879 Posts
Quote:
Originally Posted by kennyhammond
OK I am trying to build a pretty hot motor for my 1/2 ton truck. It has 2.73 gears. And a t350 Amy builds or ideas welcome. Budget of about 3500
.. thanks. O and running on pump gas
Hello Kenny, tall gears (2.73/3.00) require a short cam (190/200/210) depending on SCR, one that will make power down low like a stock factory cam. Short gears (3.73/4.10/etc.) require a tall cam (220/230/240) depending on SCR).
You must engineer your cam and gear combination to match up with the SCR of the motor. Here is a for-instance....
http://www.crankshaftcoalition.com/w..._compatibility
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 12-14-2011, 08:48 PM
Registered User
 
Join Date: Jan 2011
Location: texas
Posts: 141
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
what would be a good set of heads nothen to break the bank with but somethen that will be good ?? have been looking at the rhs heads and also procomp.... like i said its a toy so dont wana srop to much money..... might try the 280 or 292 cam out from comp cams......
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 12-15-2011, 01:00 PM
techinspector1's Avatar
Senior Curmudgeon
 
Last wiki edit: DynoSim combinations Last photo:
Join Date: Oct 2005
Location: Hemet, California, USA
Age: 72
Posts: 13,083
Wiki Edits: 326

Thanks: 779
Thanked 1,057 Times in 879 Posts
Quote:
Originally Posted by kennyhammond
what would be a good set of heads nothen to break the bank with but somethen that will be good ?? have been looking at the rhs heads and also procomp.... like i said its a toy so dont wana srop to much money..... might try the 280 or 292 cam out from comp cams......
Kenny, you're gonna make me crazy grabbing cams out of thin air like that. Are you reading any of the stuff on this forum? It sure doesn't seem like it.

Best budget heads for a street 350 would be the Racing Head Service 12407 (iron guides) or 12410 (bronze guides).
http://www.competitionproducts.com/R...info/RHS12407/
http://www.competitionproducts.com/R...info/RHS12410/
Fill 'em with valves, springs, keepers, retainers, seals and screw-in rocker studs from Competition Products and you can have a fine set of iron heads for under 800 bucks that'll make 450 hp on a 355.

355 Gen I Chevy street motor, 453 HP, 475 ft-lbs torque.
Block: '68-'86 Chevy 350 Gen I bored +0.030".
Crank: Stock 350, 3.48" stroke, 2.450" main journal diameter.
Rods: Stock 350 5.7". Recommend ARP bolts, re-size big end.
Pistons: Keith Black hypereutectic, part #KB193, 12cc D-cup, 5/64,5/64,3/16 rings. 1.561" compression height. Gap top ring 0.026", second ring 0.018".
Heads: RHS Pro Torquer Vortec 170-64, 2.02" intake, 1.60" exhaust. These heads will accept either conventional or Vortec type intake manifolds. They are drilled and tapped for both types.
Intake manifold: Dual-plane, high-rise such as the Edelbrock RPM, Weiand Stealth or Professional Products Typhoon.
Carburetor: Vacuum secondaries 750 CFM.
Headers: 1 3/4" primaries, long-tube, equal-length. Install "X" pipe between collectors and mufflers. Run 2 1/2" pipe to the rear through mufflers of your choice.
Camshaft: CompCams flat tappet hydraulic 260H: [1], installed straight up.
Rocker Arms: 1.6 ratio on both intake and exhaust.
Static Compression Ratio: 9.6:1
Dynamic Compression Ratio: 8.4:1
Squish: 0.035" to 0.045". Zero piston deck height with 0.035" to 0.045" head gasket or 0.010" to 0.020" piston deck height with Victor Reinz #5746 head gasket that compresses to 0.025".
RPM HP TQ 1000 59 310
1500 103 361
2000 150 395
2500 192 402
3000 246 431
3500 306 459
4000 360 473
4500 407 475
5000 442 464
5500 453 433
6000 450 394

Stock converter and stock rear gear will work, but would be more fun with a converter that stalls at 2000 to 2200 rpm's and a 3.73 gear. Check out that 395 ft/lbs of torque at 2000 rpm's!!! I'm pretty sure you'd like how that would pin you to the seat back on launch.
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 12-15-2011, 09:28 PM
327NUT's Avatar
Registered User
 
Last photo:
Join Date: Dec 2004
Location: So. Utah
Age: 68
Posts: 3,292
Wiki Edits: 0

Thanks: 0
Thanked 91 Times in 82 Posts
NAAAAA ,you don't want to follow Tech's advice, stick a 300 dur. Thumper in there and some "trick" block hugger headers
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 12-16-2011, 05:05 PM
Registered User
 

Last journal entry: 41 chevy frame on the move.
Last photo:
Join Date: May 2004
Location: Southington,CT.
Age: 50
Posts: 117
Wiki Edits: 0

Thanks: 2
Thanked 1 Time in 1 Post
I like this reciept Looks like I know what to ask from santa
stefanP

Thanxs techinspector1
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:
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
What is a street motor? Jsup Hotrodding Basics 4 11-09-2009 11:43 AM
ZZ4 cam for street motor??????'s mupton Engine 4 07-23-2009 10:23 PM
What do you think? street motor- rookie builder Hotrodding Basics 32 04-16-2009 08:09 AM
what do you think of this combo for a street motor J.D Engine 47 07-16-2008 11:49 AM
street motor dejo Engine 39 08-18-2006 07:44 AM


All times are GMT -6. The time now is 09:11 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.