life span of a lt1
Registered User
Joined: Apr 2003
Posts: 2,628
From: Pgh, PA
Re: life span of a lt1
Until you cam them, then you have a 50% chance of getting <5,000 more miles before you spin a bearing 
They are very dependable motors. Cop cars with them regularly are seeing 150K plus
They are very dependable motors. Cop cars with them regularly are seeing 150K plus
Registered User
Joined: Mar 2005
Posts: 73
From: USA... Bitches
Re: life span of a lt1
Originally Posted by HardcoreRM125
Until you cam them, then you have a 50% chance of getting <5,000 more miles before you spin a bearing
They are very dependable motors. Cop cars with them regularly are seeing 150K plus
They are very dependable motors. Cop cars with them regularly are seeing 150K plus
Registered User
Joined: Apr 2000
Posts: 2,670
From: T E X A S
Re: life span of a lt1
Originally Posted by HardcoreRM125
Until you cam them, then you have a 50% chance of getting <5,000 more miles before you spin a bearing
They are very dependable motors. Cop cars with them regularly are seeing 150K plus
They are very dependable motors. Cop cars with them regularly are seeing 150K plus
Use to not be that way, it use to be extremley rare for some one to spin a bearing after a cam swap. The good majority how ever dont break
Registered User
Joined: Nov 2000
Posts: 2,734
From: Kansas City suburb of
Re: life span of a lt1
160k so far and it just keeps getting faster, of course I keep adding speed parts. 
I am currently working on a low mount alternator setup and installing a new manifold plumbed for direct port nitrous.
She may not last much longer after that.
I have alot of bolt ons, suspension, and a TH400 is going in soon but the LT1 is completely stock internally and I have bounced it off the 6250 rev limit too many times to count.
Thats the main reason I have not built a monster motor........the stock one just won,t die.
I am currently working on a low mount alternator setup and installing a new manifold plumbed for direct port nitrous.
She may not last much longer after that.
I have alot of bolt ons, suspension, and a TH400 is going in soon but the LT1 is completely stock internally and I have bounced it off the 6250 rev limit too many times to count.
Thats the main reason I have not built a monster motor........the stock one just won,t die.
Registered User
Joined: Apr 2003
Posts: 2,628
From: Pgh, PA
Re: life span of a lt1
RayRay21 : No, not yet. It just seems like everyone that starts a thread about how their putting a cam in next week, gets on here 2 months later saying that they have no oil pressure at idle and theres this strang ticking noise from the bottom end ...
I really dont think its so much that they are notorious for spinning a bearing, its probably more that half the poeple camming these cars have 100K+ miles, and they were sloppy with the install or something.
I really dont think its so much that they are notorious for spinning a bearing, its probably more that half the poeple camming these cars have 100K+ miles, and they were sloppy with the install or something.
Registered User
Joined: Aug 2004
Posts: 1,388
From: SE Michigan
Re: life span of a lt1
Originally Posted by HardcoreRM125
I really dont think its so much that they are notorious for spinning a bearing, its probably more that half the poeple camming these cars have 100K+ miles, and they were sloppy with the install or something.
Registered User
Joined: Apr 2000
Posts: 1,070
From: Austin, TX or Texas State University at San Marcos
Re: life span of a lt1
I have no idea... Everybody was shocked. If I didn't have bad luck I would have no luck at all... But it gave me an excuse to rebuild her so it was ok. 
Registered User
Joined: Mar 2005
Posts: 12,312
From: Aurora, IL
Re: life span of a lt1
Originally Posted by amean94ta
must been a week block cause i have seen 450+ hp and a 300 shot dumped and it just spun the bearings no breakage
Were they looking for an excuse to rebuild the motor?