LT4 or LT1
05-08-2009, 10:23 AM
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LT4 or LT1 Ok....I bought my car as is. All modding had basically already been done. My intake is the powder coated red intake (LT4) and yes it is powder coated and not just painted. Does this mean I have an LT4 or just an LT1 with an LT4 intake? I also have the 1.6 CraneCam rr's that the LT4 cam with. How can I tell which block I have?
05-08-2009, 12:00 PM
#2
Ok....I bought my car as is. All modding had basically already been done. My intake is the powder coated red intake (LT4) and yes it is powder coated and not just painted. Does this mean I have an LT4 or just an LT1 with an LT4 intake? I also have the 1.6 CraneCam rr's that the LT4 cam with. How can I tell which block I have?
05-08-2009, 09:07 PM
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No....its definately an LT4 intake.And I have AirFlow Research heads sooooo they arent even close to factory.So no casting numbers to be seen there.
05-08-2009, 09:23 PM
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The shortblocks are near idential anyway and its not like the value of your car will increase with an LT4 shortblock b/c the 94's never came with them from the factory so it would have to be swapped in.
05-09-2009, 06:30 AM
#6
The LT4 intake is internally the same as the later SMALL PORT LT1 intakes.
The LT4 block is the same casting as an LT1 block. The crank is machined a little differently, as are the rods, but not substantially different pieces, like I said the difference is machining more than anything else.
That mod list makes a hell of a bench racer, probably not much in the real world though. Mod list is born of ignorance rather than any understanding of what works. I am sure it feels fast to you but you probably have no baseline to compare too.
The LT4 block is the same casting as an LT1 block. The crank is machined a little differently, as are the rods, but not substantially different pieces, like I said the difference is machining more than anything else.
That mod list makes a hell of a bench racer, probably not much in the real world though. Mod list is born of ignorance rather than any understanding of what works. I am sure it feels fast to you but you probably have no baseline to compare too.
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05-09-2009, 08:39 AM
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Ok....I bought my car as is. All modding had basically already been done. My intake is the powder coated red intake (LT4) and yes it is powder coated and not just painted. Does this mean I have an LT4 or just an LT1 with an LT4 intake? I also have the 1.6 CraneCam rr's that the LT4 cam with. How can I tell which block I have?
The LT4 is not that much of difference actually waste of money if u saw what if any gains are. I have an LT4 intake and it actually hurt me down low but picked up up top I should have just ported the stocker.
05-09-2009, 10:36 AM
#9
Again I do not know why people choose to ignore this data but the LT4 intake is internally the same as the later LT1.
As this pic from GIZMO shows, the difference is extra material above the port.
http://i85.photobucket.com/albums/k5...1/DCP_1456.jpg
05-09-2009, 03:27 PM
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Here's a listing of the differences:
http://www.grandsportregistry.com/lt1vslt4.htm
Jake
West Point ROCKS!
http://www.grandsportregistry.com/lt1vslt4.htm
Jake
West Point ROCKS!
05-10-2009, 11:53 AM
#12
stock intake part number 12552137
lt4 intake 12550630
so you can see its a different part number just by looking at the intake, but you will never know what cam is actually down below...you can only go by what the seller told you which sometimes is a crock of ****....
lt4 intake 12550630
so you can see its a different part number just by looking at the intake, but you will never know what cam is actually down below...you can only go by what the seller told you which sometimes is a crock of ****....
05-10-2009, 12:09 PM
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The LT4 intake is internally the same as the later SMALL PORT LT1 intakes.
The LT4 block is the same casting as an LT1 block. The crank is machined a little differently, as are the rods, but not substantially different pieces, like I said the difference is machining more than anything else.
That mod list makes a hell of a bench racer, probably not much in the real world though. Mod list is born of ignorance rather than any understanding of what works. I am sure it feels fast to you but you probably have no baseline to compare too.
The LT4 block is the same casting as an LT1 block. The crank is machined a little differently, as are the rods, but not substantially different pieces, like I said the difference is machining more than anything else.
That mod list makes a hell of a bench racer, probably not much in the real world though. Mod list is born of ignorance rather than any understanding of what works. I am sure it feels fast to you but you probably have no baseline to compare too.
05-10-2009, 01:24 PM
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My mod list is born of ignorance? So what exactly does that mean? I have no understanding of my car and the modifications done to it? The previous owner said with slicks and a 100 shot it ran low 11's high 10's. That sounds pretty quick to me.Even in the "REAL WORLD". I have yet to run the car on the track because I only had it for 3 weeks until I tore the motor down.There was a lot of blow by coming through the #6 cylinder and my motor guy told me the walls were pretty scarred. So im actually in the process of having it rebuilt right now. (30 over,new pistons, new rings, new bearings, new roller cam/lifter set, new freeze plugs, all new gaskets and seals. So yea I know its pretty fast.
Sorry guys, just trying to be peacekeeper here. There is no reason for this thread to blow up into a flame fest.
05-10-2009, 08:33 PM
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You say the car could be faster for less money....how do you know how much money the guy spent on the car and what would you have recommended him to do? Or me for that matter? I heard that low 11's high 10's is pretty fast for an LT1. And also keep in mind that I am in the process of putting a nice amount of money into it as we speak, so its going to be faster.
05-10-2009, 08:50 PM
#19
You say the car could be faster for less money....how do you know how much money the guy spent on the car and what would you have recommended him to do? Or me for that matter? I heard that low 11's high 10's is pretty fast for an LT1. And also keep in mind that I am in the process of putting a nice amount of money into it as we speak, so its going to be faster.
05-10-2009, 10:11 PM
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