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Pushrod guide plate question

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Old Dec 22, 2008 | 01:07 PM
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Default Pushrod guide plate question
I'm working on a '95 LT1. Installing a GM LT4 Hotcam.

I want to use Crower stainless steel 1.6 Enduro Roller Rockers with 7/16 - 7/16 studs, rockers are not-self alighning. Along with 3/8th hardened pushrods and the cam kit springs, retainers etc.

My question is. Will the stud bosses need milled down for the guide plates or do I just need the stepped plates?

Also, on a roller cam. This engine has less then 12K miles on it. Could I reuse the roller lifters?
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Old Dec 22, 2008 | 01:18 PM
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Originally Posted by Ryan59
I'm working on a '95 LT1. Installing a GM LT4 Hotcam.

I want to use Crower stainless steel 1.6 Enduro Roller Rockers with 7/16 - 7/16 studs, rockers are not-self alighning. Along with 3/8th hardened pushrods and the cam kit springs, retainers etc.

My question is. Will the stud bosses need milled down for the guide plates or do I just need the stepped plates?

Also, on a roller cam. This engine has less then 12K miles on it. Could I reuse the roller lifters?
I couldn't tell you with the guide plates but roller lifters are far more forgiving that flats. I would check the rollers for wear on either edge to say they have worn heavily in one way or the other. If they look pretty centered I would feel safe with reusing them.
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Old Dec 22, 2008 | 01:35 PM
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The stud bosses don't need to be milled to use guide plates. I'm using TrickFlow guide plates on my 94, and the align near perfectly.

Yes, you can reuse your low mileage roller liftrs.
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Old Dec 22, 2008 | 08:49 PM
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One of the main reasons for using the hardened guide plates for the push rods is that if the rods move to one side or another without the guide plates they will eat their way into your aluminum heads and you will have aluminum filings running thru your oil system..........not a good thing.
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Old Dec 22, 2008 | 09:46 PM
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Now I'm wondering if 3/8ths pushrods will drop in? I don't have to use larger pushrods. Just thinking durability.
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Old Dec 22, 2008 | 10:41 PM
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Just stick with the stock diameter pushrods. TrickFlow also makes a nice chromoly pushrod at a bargain price.
Last edited by STL94LT1; Dec 22, 2008 at 10:46 PM.
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Old Dec 23, 2008 | 02:22 AM
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Just stick with the stock diameter pushrods.

Just use stock size but hardened pushrods...
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Old Dec 23, 2008 | 03:07 PM
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Great!!! Trick Flow seems to have just what I need. Soon as Christmas is over, will be getting this stuff ordered.

Thanks for the help!!!!
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Old Dec 23, 2008 | 03:22 PM
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Just curious, what valve springs are you going to run? If they are the LT4 springs, you should consider a better spring while you've got the car apart.
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Old Dec 23, 2008 | 03:40 PM
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Yes I was going to order the kit that came with springs & retainers. I have used the Crower Enduro's before and like them but that's the only deviation I had planned. I'm open to better spring info.
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Old Dec 23, 2008 | 03:53 PM
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If want to run a stock diameter spring Lloyd Elliot reccomends these for similar cams to the Hot Cam.

http://competitionproducts.com/prodi...p?number=98215

"rated at .600 "max lift" but I would use them up to .570 lift and 6300 RPM. They are in the same catagory with the K motions or Crane 99846 single springs".
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Old Dec 23, 2008 | 04:25 PM
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Sounds good. Looks like you use the stock retainers with them also?
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Old Dec 23, 2008 | 05:16 PM
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Originally Posted by STL94LT1
Just curious, what valve springs are you going to run? If they are the LT4 springs, you should consider a better spring while you've got the car apart.
......I broke a LT4 spring......this is great advice...
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Old Dec 23, 2008 | 06:11 PM
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You may want to pick up a set of the LT4 retainers and locks to go with those springs. The LT4 retainers are lighter than the LT1 version, and really cheap $$.
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