what is involved with changing pistons, rods, and crank?
Thread Starter
Registered User
Joined: Feb 2002
Posts: 729
From: Northeast Ohio
what is involved with changing pistons, rods, and crank?
for a stock bore LT1 block. I was thinking of possibly down the road just switching to forged internals so I can run lots of nitrous or a supercharger. I assume the engine would probably have to be pulled, and rebalanced after the rotating assembly is put together.
Any input would be greatly appreciated
Any input would be greatly appreciated
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Joined: Dec 1969
Posts: 10,745
From: Buffalo, New York
You need to pull the motor and inspect/replace some basic things before putting it back together. The correct order of things to check depends on exactly what your plans are. But I would plan on a fresh set of bearings, no matter what. Obviously, you will be using new rings with your new pistons. As long as the heads are off, I'd do a valve job. The issue of checking vs. just replacing things like valve springs, etc. depends on what tools are available to you, what your budget is, etc.
FWIW, a stock crank is pretty stout. You definitely need a good set of forged pistons for nitrous or a SC, but you need to decide which prior to a rebuild. A nitrous motor is typically high CR, while you will want a low CR for a blower car. Stock rods aren't bad, if you upgrade the rod bolts and if they are in good shape, but their adequacy will depend on exactly what you have planned and also on your budget.
I realize that's pretty general and rambling, but I am not really sure what you want to know.
Rich Krause
FWIW, a stock crank is pretty stout. You definitely need a good set of forged pistons for nitrous or a SC, but you need to decide which prior to a rebuild. A nitrous motor is typically high CR, while you will want a low CR for a blower car. Stock rods aren't bad, if you upgrade the rod bolts and if they are in good shape, but their adequacy will depend on exactly what you have planned and also on your budget.
I realize that's pretty general and rambling, but I am not really sure what you want to know.
Rich Krause
Banned
Joined: Aug 2001
Posts: 3,505
From: looking for a flow bench so Brook and I can race
Originally posted by rskrause
You need to pull the motor and inspect/replace some basic things before putting it back together. The correct order of things to check depends on exactly what your plans are. But I would plan on a fresh set of bearings, no matter what. Obviously, you will be using new rings with your new pistons. As long as the heads are off, I'd do a valve job. The issue of checking vs. just replacing things like valve springs, etc. depends on what tools are available to you, what your budget is, etc.
FWIW, a stock crank is pretty stout. You definitely need a good set of forged pistons for nitrous or a SC, but you need to decide which prior to a rebuild. A nitrous motor is typically high CR, while you will want a low CR for a blower car. Stock rods aren't bad, if you upgrade the rod bolts and if they are in good shape, but their adequacy will depend on exactly what you have planned and also on your budget.
I realize that's pretty general and rambling, but I am not really sure what you want to know.
Rich Krause
You need to pull the motor and inspect/replace some basic things before putting it back together. The correct order of things to check depends on exactly what your plans are. But I would plan on a fresh set of bearings, no matter what. Obviously, you will be using new rings with your new pistons. As long as the heads are off, I'd do a valve job. The issue of checking vs. just replacing things like valve springs, etc. depends on what tools are available to you, what your budget is, etc.
FWIW, a stock crank is pretty stout. You definitely need a good set of forged pistons for nitrous or a SC, but you need to decide which prior to a rebuild. A nitrous motor is typically high CR, while you will want a low CR for a blower car. Stock rods aren't bad, if you upgrade the rod bolts and if they are in good shape, but their adequacy will depend on exactly what you have planned and also on your budget.
I realize that's pretty general and rambling, but I am not really sure what you want to know.
Rich Krause
its a rebuild
if your going to spray alot, good rods are a good idea
Last edited by treyZ28; Apr 7, 2003 at 10:31 PM.
Banned
Joined: Aug 2001
Posts: 3,505
From: looking for a flow bench so Brook and I can race
Originally posted by rskrause
You need to pull the motor and inspect/replace some basic things before putting it back together. The correct order of things to check depends on exactly what your plans are. But I would plan on a fresh set of bearings, no matter what. Obviously, you will be using new rings with your new pistons. As long as the heads are off, I'd do a valve job. The issue of checking vs. just replacing things like valve springs, etc. depends on what tools are available to you, what your budget is, etc.
FWIW, a stock crank is pretty stout. You definitely need a good set of forged pistons for nitrous or a SC, but you need to decide which prior to a rebuild. A nitrous motor is typically high CR, while you will want a low CR for a blower car. Stock rods aren't bad, if you upgrade the rod bolts and if they are in good shape, but their adequacy will depend on exactly what you have planned and also on your budget.
I realize that's pretty general and rambling, but I am not really sure what you want to know.
Rich Krause
You need to pull the motor and inspect/replace some basic things before putting it back together. The correct order of things to check depends on exactly what your plans are. But I would plan on a fresh set of bearings, no matter what. Obviously, you will be using new rings with your new pistons. As long as the heads are off, I'd do a valve job. The issue of checking vs. just replacing things like valve springs, etc. depends on what tools are available to you, what your budget is, etc.
FWIW, a stock crank is pretty stout. You definitely need a good set of forged pistons for nitrous or a SC, but you need to decide which prior to a rebuild. A nitrous motor is typically high CR, while you will want a low CR for a blower car. Stock rods aren't bad, if you upgrade the rod bolts and if they are in good shape, but their adequacy will depend on exactly what you have planned and also on your budget.
I realize that's pretty general and rambling, but I am not really sure what you want to know.
Rich Krause
its a rebuild
if your going to spray alot, good rods are a good idea.
Crank is good so long as Rpms dont get too happy
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