LT1-LT4 Modifications 1993-97 Gen II Small Block V8

I need a lot of help asap

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Old 07-26-2012, 07:42 AM
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is your coolant boiling in your overflow tank? usually if your getting alot of bubbles through the rad, combustion could be pushing through the blown head gasket. air pockets are known to cause overheating, and driving with the coolant gauge at zero is not a good thing its not reading your block temp its only reading the "coolant" temp so if there is no coolant its not reading anything, so you could have overheated it and not know. i would fix that gauge first before any further testing... IMO
Old 07-26-2012, 10:16 AM
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But would it cause the air from the piston rising to push air into the water jacket resulting in the coolant being pushed out?
Old 07-26-2012, 10:36 AM
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Originally Posted by Lil'Felt
But would it cause the air from the piston rising to push air into the water jacket resulting in the coolant being pushed out?
YES!
Borrow a damn cooling system pressure test kit and see if it hold pressure like suggested numerous times, if it leaks down find leak, if it doesn't then you can move on to another idea. Do you have the steam pipe and overflow hose connected in the right places on the radiator??
A head gasket letting go is bAd news but very fixable ..
Old 07-26-2012, 10:54 AM
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Yea all the hoses are connected and I plan on getting all the testing equipment today. Anyone know of a head gasket how to guide
Old 07-26-2012, 10:59 AM
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I'm going to pull some plugs to see if there's coolant coming out of it, from there I'll try re bleeding the system and if none of that works I'll proceed to pulling the heads off. Would any parts store carry a head gasket for a 355 sbc motor?
Old 07-26-2012, 11:45 AM
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Yeah their at the parts store , Haynes vehicle specific repair manual.
www.shbox.com also is the bible for our cars, don't forget to donate to the site for the help!

Is this your first car? A S/C lt1 isn't ideal for a new driver/car owner.
Old 07-26-2012, 11:50 AM
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Yes if you need a head gasket a felpro performance but stock replacement size can be ordered at any parts house .. Idk the p/n but I'm sure some1 wil chime in with some, If there is a prob most people will say do them both.. This will be best since you dont know what gasket is installed and the head may need milled..But you can get away with just the one that's blown if no machining is needed and you use the same gasket. Make sure to have the head Or heads..checked for warpage or cracks at a machine shop while it's off . You don't want thinner gaskets... If anything thicker will be better for the boost by dropping compression.
Now,get those hushpuppys moving ...Lil'Felt

Last edited by defaultexistence; 07-26-2012 at 11:57 AM.
Old 07-26-2012, 12:18 PM
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No I've had cars prior to this one it's just my first camaro lt1. I'm used to working on motorcycle engines and such and have the ability to make repairs to a vehicle just need some direction for this car
Old 07-26-2012, 12:20 PM
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Yea I'd like to get a thicker head gasket but wasn't sure if a parts store would carry one for a 355 lt1 motor. What temp would the block begin to warp...
Old 07-26-2012, 01:15 PM
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First you need to determine that you need a head gasket. If yes, it would make sense to do both. It would also make sense to have the heads freshened up at a local shop.

Some of these engines were built from the factory with TTY head bolts so new ones would also make sense.
Old 07-26-2012, 01:52 PM
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Originally Posted by Paul Bell
First you need to determine that you need a head gasket. If yes, it would make sense to do both. It would also make sense to have the heads freshened up at a local shop.

Some of these engines were built from the factory with TTY head bolts so new ones would also make sense.
whats tty?
Old 07-26-2012, 02:37 PM
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Torque to yield.
Old 07-26-2012, 02:38 PM
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Swap in an LS1. Problem solved
Old 07-26-2012, 03:03 PM
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i actually want a gto, but id rather fix this small issue prior to getting rid of it or trading it. im not the type to trade a broken car for one that is fine...just dont see that being fair.
Old 07-26-2012, 04:59 PM
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Very respectable. We'll help you fix this.
Old 07-26-2012, 05:39 PM
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well guys id like to update you on this repair, but its looking like im not going to be going through on any diagnostics on the car....it will just stay the way it is. whether it be an air pocket or a bad head gasket i will never know.
but thanks for all your help fellas.
Old 07-26-2012, 07:21 PM
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Uhhhh?
Old 07-26-2012, 07:59 PM
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You'll know soon if you keep driving it not caring!!!
Old 07-26-2012, 08:13 PM
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no i will not be driving it either. the cars just going to sit until either A somebody buys it or two i get 2k saved up extremely quickly and repair it. either or....
Old 07-26-2012, 08:16 PM
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Good luck with your plans for this car.


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