LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Camshafts

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Old 11-18-2008, 07:53 PM
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Camshafts

Do the 93-97 LT1s have hydraulic roller camshafts???
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Old 11-18-2008, 08:02 PM
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Yes. However, make sure the camshaft your chooseing is for an LT1, of your car year, cause they have a dowl pin that runs the opti. And I think 95+ the pin is longer.

EDIT: sometimes the dowl pins will be to short, or to long from the factory and will need to be machined or "tapped in". If you do not match the pin lenghts, you could destroy alot of opti's before you figure out the issue.

Last edited by bombebomb; 11-18-2008 at 09:14 PM.
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Old 11-18-2008, 08:21 PM
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Originally Posted by bombebomb
Yes. However, make sure the camshaft your chooseing is for an LT1, of your car year, cause they have a dowl pin that runs the opti. And I think 95+ the pin is longer.
I was on edelbrock and the number is 2108.

They have a package you can buy that the parts are supposed to work together but i get confused because it says the Valve Springs are for a Ford Motor-it doesn't make and sense to me because its for 390-460 ford motors which is way bigger the a 350. So what the deal?????

All of the parts in the package are as follows:

Intake Manifold: 7107
Throttle Body 2 options I chose:3810 Because it's bigger.
Cylinder Heads: 61909
Cam: 2108
Lifters: 97384
Valve Springs:5767 It says to pick these but wouldn't the heads already have valve springs on them-its says complete next to the heads. And what about lifters would those be on there too?????
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Old 11-18-2008, 08:27 PM
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Don't waste your time and money on that Edlebrock package.
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Old 11-18-2008, 08:32 PM
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Originally Posted by 4thgencamarofan
I was on edelbrock and the number is 2108.

They have a package you can buy that the parts are supposed to work together but i get confused because it says the Valve Springs are for a Ford Motor-it doesn't make and sense to me because its for 390-460 ford motors which is way bigger the a 350. So what the deal?????

All of the parts in the package are as follows:

Intake Manifold: 7107
Throttle Body 2 options I chose:3810 Because it's bigger.
Cylinder Heads: 61909
Cam: 2108
Lifters: 97384
Valve Springs:5767 It says to pick these but wouldn't the heads already have valve springs on them-its says complete next to the heads. And what about lifters would those be on there too?????
Not sure on the valve springs, I can't anwser most of these questions but I can tell you this. 99% of edelbrock stuff for our cars is not worth buying.
Id look a different route personally maybe look into elliotportworks for heads and cam package, reuse your lifters, keep stock Throttle body or go with 52mm.
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Old 11-18-2008, 08:34 PM
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Originally Posted by bombebomb
Not sure on the valve springs, I can't anwser most of these questions but I can tell you this. 99% of edelbrock stuff for our cars is not worth buying.
Id look a different route personally maybe look into elliotportworks for heads and cam package, reuse your lifters, keep stock Throttle body or go with 52mm.
Why wouldn't you buy Edelbrock????? I still think i'd go with a 58mm.
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Old 11-18-2008, 08:41 PM
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Originally Posted by 4thgencamarofan
Why wouldn't you buy Edelbrock????? I still think i'd go with a 58mm.
Its been proven several times the edelbrock parts for our cars are not the best route to go. If you read alot you will see no one uses edelbrock parts, unless they need a replacement intake manifold (the air gap). I am sure someone has some hard evidence and will chime in. That way you are not baseing your buying decision strictly off an 'opinion'.
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Old 11-18-2008, 08:57 PM
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Originally Posted by bombebomb
Its been proven several times the edelbrock parts for our cars are not the best route to go. If you read alot you will see no one uses edelbrock parts, unless they need a replacement intake manifold (the air gap). I am sure someone has some hard evidence and will chime in. That way you are not baseing your buying decision strictly off an 'opinion'.
What else would you recommend?????
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Old 11-18-2008, 09:00 PM
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Originally Posted by 4thgencamarofan
What else would you recommend?????
Lloyd Elliot or AI. Both will do MUCH more for you than crappy edelbrock.

http://www.elliottsportworks.com/

Last edited by LSWHO; 11-18-2008 at 09:03 PM.
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Old 11-18-2008, 09:11 PM
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Originally Posted by LSWHO
Lloyd Elliot or AI. Both will do MUCH more for you than crappy edelbrock.

http://www.elliottsportworks.com/

Originally Posted by bombebomb
Id look a different route personally maybe look into elliotportworks for heads and cam package.
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Old 11-22-2008, 06:00 PM
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Originally Posted by bombebomb
Yes. However, make sure the camshaft your chooseing is for an LT1, of your car year, cause they have a dowl pin that runs the opti. And I think 95+ the pin is longer.

EDIT: sometimes the dowl pins will be to short, or to long from the factory and will need to be machined or "tapped in". If you do not match the pin lenghts, you could destroy alot of opti's before you figure out the issue.
How would it destroy them????
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Old 11-23-2008, 08:10 AM
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If the dowel pin is too long and bottoms out in the hole in the Opti, it puts pressure on the back of the Opti and forces the rotor forward, where it rubs agains the cap. Also forces the slotted disc for the optical sensor forward, so it rubs against the sensor housing. Can damage the bearing is well.
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Old 11-23-2008, 06:12 PM
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Originally Posted by Injuneer
If the dowel pin is too long and bottoms out in the hole in the Opti, it puts pressure on the back of the Opti and forces the rotor forward, where it rubs agains the cap. Also forces the slotted disc for the optical sensor forward, so it rubs against the sensor housing. Can damage the bearing is well.
What if its too short then what does the opti not work???
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Old 11-23-2008, 09:41 PM
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Originally Posted by 4thgencamarofan
What if its too short then what does the opti not work???
There won't be enough of the dowl to engage and rotate the opti rotor.
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