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overheat culprit
Thread Starter
Burning Brakes
Joined: Feb 2006
Posts: 841
Likes: 0
From: High Desert California
overheat culprit
I've been talking about my experience and thought that I blew a head gasket while cruising on the freeway. Here's the cause of it all.[IMG]
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So, I ended up this way.
This is the reason why I've been asking about the vortec adaptability.
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[/IMG]So, I ended up this way.
This is the reason why I've been asking about the vortec adaptability.
Thread Starter
Burning Brakes
Joined: Feb 2006
Posts: 841
Likes: 0
From: High Desert California
i just installed a new cam in there and the lift if i remember right was not that much, probably 467, mid range cam. That was another question i was going to throw in, i have this vortec motor that's in pieces but not sure if i can install an aftermarket cam and use flat tappet lifters. any ideas???????
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Thread Starter
Burning Brakes
Joined: Feb 2006
Posts: 841
Likes: 0
From: High Desert California
Originally Posted by Greg
That's a bummer Rene' but from the looks of #3 cylinder you were probably due for an overhaul anyway.
Good luck
Good luck
That's why I'm asking if I can use this vortec motor I have and install an aftermarket cam. The vortec uses roller lifters and I was thinking of going with an aftermarket cam and use flat tappet lifters. We first took out the passenger side head and pistons looked ok. So, i told my son that we were to just use the vortec heads and bolt it on. When we got to the driver's side,
"that's it", I told him. It's either we build this motor and have it stroked or use the vortec. 
Le Mans Master
Joined: Sep 2001
Posts: 7,739
Likes: 630
From: Unreconstructed, South Carolina
Originally Posted by 81cali
i just installed a new cam in there and the lift if i remember right was not that much, probably 467, mid range cam. That was another question i was going to throw in, i have this vortec motor that's in pieces but not sure if i can install an aftermarket cam and use flat tappet lifters. any ideas???????
-edit- ... just looked at your broken intake valve ... little chance you'll be using your old heads.
Last edited by jackson; Jun 12, 2006 at 02:00 AM.
Thread Starter
Burning Brakes
Joined: Feb 2006
Posts: 841
Likes: 0
From: High Desert California
great input Jackson, thanks a lot!!! the roller cam and lifter set tend to run higher and the cam and lifters i have on the old motor are about 2 weeks old. should i replace all bearings as well (crank & rod) the motor has 28,000 miles. also, should i grind the valves or just clean the heads and drop it in?
Le Mans Master
Joined: Sep 2001
Posts: 7,739
Likes: 630
From: Unreconstructed, South Carolina
Originally Posted by 81cali
great input Jackson, thanks a lot!!! the roller cam and lifter set tend to run higher and the cam and lifters i have on the old motor are about 2 weeks old. should i replace all bearings as well (crank & rod) the motor has 28,000 miles. also, should i grind the valves or just clean the heads and drop it in?
Thread Starter
Burning Brakes
Joined: Feb 2006
Posts: 841
Likes: 0
From: High Desert California
this is a motor that came off a 2000 tahoe w/28,000 mi. it was returned to the dealer who found out that #4 needed ringing. so instead, motor was taken out and replaced instead of doing the work since the truck was still under warranty. it's complete except for the intake, accesories, and the flexplate. Oh, it also didn't come with the oil filter housing. I plan to change all the rings, hone the bores, and change all bearings. the heads seem to look ok.