Tech / General Engine Is your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!
Sponsored by:
Sponsored by: CARiD

long block vs. short block

Old Jun 15, 2006 | 08:22 PM
  #1  
johnnyboy's Avatar
Thread Starter
Supreme Member
iTrader: (3)
 
Joined: Feb 2006
Posts: 1,093
Likes: 0
From: western ny
Car: '82 formula clone, 95 saab 900se
Engine: 350 vortec'd tbi, 2.0L turbo
Transmission: 700r4, 5 spd
Axle/Gears: 10 bolt 2.77 open
long block vs. short block

whats the difference between a long block and a short block? pros and cons? and what do i want for a mild street engine?
Reply
Old Jun 15, 2006 | 08:28 PM
  #2  
91CamaroRS305's Avatar
Supreme Member
iTrader: (2)
 
Joined: Feb 2003
Posts: 1,583
Likes: 1
From: Chicago
Car: Only a daily driver, but comin home
Engine: I have one that runs ;)
Transmission: Caged hamster that runs really fast
Axle/Gears: They are round, I know that much
It have nothing to do with the performance of the engine, it has to do with what comes with the engine.

A long block usually consists of a block, crank, rods, pistons, cam, lifters, pushrods, heads, valves, rockers, and a balancer.

A short block is usually just the block, crank, rods, and pistons.

As for a street engine, the setup I have in my sig is very streetable, a little on the obnoxious side, but I do drive it will little problems from it. I run a mixture of 1/3 93 octane gas and 2/3 E85 (which is roughly 105 octane), or I will run straight 100 octane race gas, but it is a drive to get race gas. I can run higher octane but prices and distance keep me away from it.
Reply
Old Jun 15, 2006 | 08:30 PM
  #3  
nelapse's Avatar
Supreme Member
iTrader: (17)
 
Joined: Jan 2005
Posts: 2,716
Likes: 3
From: Mobile, AL
Car: GTA
Engine: 383 HSR
Transmission: TH-700R4
Axle/Gears: 3.42
Originally Posted by 91CamaroRS305
It have nothing to do with the performance of the engine, it has to do with what comes with the engine.

A long block usually consists of a block, crank, rods, pistons, cam, lifters, pushrods, heads, valves, rockers, and a balancer.

A short block is usually just the block, crank, rods, and pistons.
normally long blocks come from oil pan to heads... every now and then you get an intake manny.. shortblocks have nothing but bottom end thats why they are cheaper
Reply
Old Jun 15, 2006 | 09:18 PM
  #4  
johnnyboy's Avatar
Thread Starter
Supreme Member
iTrader: (3)
 
Joined: Feb 2006
Posts: 1,093
Likes: 0
From: western ny
Car: '82 formula clone, 95 saab 900se
Engine: 350 vortec'd tbi, 2.0L turbo
Transmission: 700r4, 5 spd
Axle/Gears: 10 bolt 2.77 open
well that's good to know, so if i'm planning on having an engine built all i really need to get is a block and a rotating assembly.
Reply
Old Jun 15, 2006 | 09:59 PM
  #5  
Red Devil's Avatar
Supreme Member
 
Joined: Apr 2000
Posts: 3,187
Likes: 0
From: E.B.F. TN
Car: Tree Huggers
Engine: Do Not
Transmission: Appreciate Me.
If you're plannig on having an engine built you really need to get some books to gain some understanding first. Otherwise chances are you are going to be taken for a ride.
Reply
Old Jun 15, 2006 | 10:18 PM
  #6  
johnnyboy's Avatar
Thread Starter
Supreme Member
iTrader: (3)
 
Joined: Feb 2006
Posts: 1,093
Likes: 0
From: western ny
Car: '82 formula clone, 95 saab 900se
Engine: 350 vortec'd tbi, 2.0L turbo
Transmission: 700r4, 5 spd
Axle/Gears: 10 bolt 2.77 open
Originally Posted by Red Devil
If you're plannig on having an engine built you really need to get some books to gain some understanding first. Otherwise chances are you are going to be taken for a ride.
that's what i'm doing, but the guys at the shop that's gonna build it are friends so i'm not worried about it
Reply
Old Jun 15, 2006 | 10:39 PM
  #7  
84z28350's Avatar
Supreme Member
 
Joined: Aug 2005
Posts: 3,004
Likes: 4
From: Yellowknife, NWT, Canada
Car: 84 Z28
Engine: 357
Transmission: TH-350C
Axle/Gears: 3.43
If you just want a low power daily driver grab the longblock assembly, it will save you some cash.

If you want to have a motor 'built up' get the shortblock assembly. That way you wont end up buying 2 pairs of heads or 2 cams...
Reply
Old Jun 16, 2006 | 06:41 PM
  #8  
johnnyboy's Avatar
Thread Starter
Supreme Member
iTrader: (3)
 
Joined: Feb 2006
Posts: 1,093
Likes: 0
From: western ny
Car: '82 formula clone, 95 saab 900se
Engine: 350 vortec'd tbi, 2.0L turbo
Transmission: 700r4, 5 spd
Axle/Gears: 10 bolt 2.77 open
i'm looking for an easy 350-400hp
Reply
Old Jun 16, 2006 | 06:52 PM
  #9  
1989GTATransAm's Avatar
Supreme Member
iTrader: (3)
 
Joined: Sep 2003
Posts: 6,859
Likes: 14
From: Cypress, California
Car: 1989 GTA
Engine: 369 TPI
Transmission: 4L60E
Axle/Gears: 3.70 Nine Bolt
For the 400hp mark you will need some carefull parts consideration. It's not hard to do you just have to get the right parts and the proper assembly.
Reply
Old Jun 16, 2006 | 07:18 PM
  #10  
AlkyIROC's Avatar
Moderator
25 Year Member
Liked
 
Joined: Jul 1999
Posts: 17,265
Likes: 168
From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
If you want a complete drop in engine, ready to go, except for a few minor things, then you buy a long block. If you already have good heads and induction system for an engine, then you buy a short block and install your parts to finish the engine.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Street Lethal
Power Adders
634
Apr 30, 2019 12:14 PM
gixxer92
Engine/Drivetrain/Suspension Parts for Sale
5
Sep 1, 2015 04:32 PM
camaro71633
Tech / General Engine
39
Sep 1, 2015 10:24 AM
355tpipickup
Alternative Port EFI Intakes
3
Aug 29, 2015 10:47 PM
BBSDesigns
Power Adders
10
Aug 11, 2015 07:39 PM


Thread Tools
Search this Thread

All times are GMT -5. The time now is 02:14 AM.