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

Hotcam for $50

Old Jul 16, 2008 | 01:53 PM
  #16  
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Originally Posted by pyro719
What about the pushrods?


He agrees to what I said just above his post.
Old Jul 16, 2008 | 01:55 PM
  #17  
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Originally Posted by '94 Bad A Z28
You have crappy 3-piece "hardened" pushrods. Replace them, get some Comp 1-piece hardened at least.
Oh ok good lookin out. So the stockers are junk?
Old Jul 16, 2008 | 01:56 PM
  #18  
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Originally Posted by '94 Bad A Z28
You have crappy 3-piece "hardened" pushrods. Replace them, get some Comp 1-piece hardened at least.
This...

They aren't junk, but it's easier to replace them now rather than risk having to replace them later.
Old Jul 16, 2008 | 02:22 PM
  #19  
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You don't necessarily need hardened PRs unless you are going with NSA RRs. If you are not buying the kit for the Hot Cam, then I would suggest going with some heavier springs than come with the kit. JMHO
Old Jul 16, 2008 | 02:29 PM
  #20  
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Originally Posted by BUBBA
You don't necessarily need hardened PRs unless you are going with NSA RRs. If you are not buying the kit for the Hot Cam, then I would suggest going with some heavier springs than come with the kit. JMHO
He already has the springs from the kit.

The hardened/chromemoly pushrods are required by the added stresses placed on them by the upgraded springs/cam and the increased RPM. They're too cheap to let that be the "weak link in the chain."
Old Jul 16, 2008 | 02:31 PM
  #21  
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BTW: to minimize the chances of spinning a bearing or otherwise messing up your engine, I suggest taking your time in selecting the combination, and above all pay attention to the installation of the cam. An engine does not have to have any miles on it to spin a bearing if the install is boogered. If you buy something used, like a cam, it is wise to have it inspected by a machinest before installation. Could be bent or otherwise boogered. Have them polish it while you are at it. Problem with buying a used part is that you have little recourse if it is bad and the savings in cost may be far outweighted by the the ultilmate cost of R&R of the part or Engine. JMHO
Old Jul 17, 2008 | 08:56 AM
  #22  
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Where can I get a cam swap gasket kit?
Old Jul 17, 2008 | 08:58 AM
  #23  
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Originally Posted by pyro719
Where can I get a cam swap gasket kit?
Thunder racing used to have one. Most kits are full engine kits.

You don't need much. Timing cover and intake is all. I think the wp gaskts come with the TC set, but if not then you need those, too. Don't tear your oil pan gasket and you won't need that. Just get a lot of RTV and paper towels.
Old Jul 17, 2008 | 09:50 AM
  #24  
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Awesome! This is m y first lt1 so I havnt done a cam swap on one of these yet. Have done plenty of SBC's though. Should be about the same.
Old Jul 17, 2008 | 10:43 AM
  #25  
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Originally Posted by pyro719
Awesome! This is m y first lt1 so I havnt done a cam swap on one of these yet. Have done plenty of SBC's though. Should be about the same.
I would guess that they are pretty close. If you didn't know, shoebox has a great cam removal and install guide on his site. That's what I used and it helped greatly.

www.shbox.com
Old Jul 20, 2008 | 04:15 AM
  #26  
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Will I need new injectors with this cam? remember I'm spray a 125 dry shot as well.
Old Jul 20, 2008 | 05:15 AM
  #27  
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Originally Posted by pyro719
Will I need new injectors with this cam? remember I'm spray a 125 dry shot as well.
Yes, I believe you would. Plus a dyno tune to play it safe. Do you have a way to pull timing for the spray?
Old Jul 20, 2008 | 11:33 AM
  #28  
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I have a mallory 685 but I dont think it works, guess Ill send it to them to get refurb'd. What size injectors?
Old Jul 20, 2008 | 11:54 AM
  #29  
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Originally Posted by pyro719
I have a mallory 685 but I dont think it works, guess Ill send it to them to get refurb'd. What size injectors?
For 125 dry shot and cam, I'd say 37#, but I always over-estimate.

I didn't think we could use a dry shot on our cars???
Old Jul 20, 2008 | 12:12 PM
  #30  
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Yup been running a dry shot for about a year now. Think I can get by with some svo 30's? I can get a set for $100

Last edited by pyro719; Jul 20, 2008 at 12:20 PM.

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