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

Cam and parts question

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Old 10-31-2006, 03:48 PM
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Default Cam and parts question

So far i have a custom cam

@summit part number CRN-10308-1 those springs and seats. I believe theyre crane doubles. I think thats what i was told

and retainers

I believe im going to get gaskets.. From felpro, do I need head gaskets or intake gaskets?

Im gettin GMPP guideplates with 7/16 crane cams screw in studs

And Im gettin some probably GMPP chromoly pushrods but im not sure what size to get. Some insight there would help. Thanks alot!!
Old 10-31-2006, 05:33 PM
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7.200" pr's
Old 10-31-2006, 06:27 PM
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Make sure they are 5/16 diameter too
Old 10-31-2006, 06:48 PM
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If you search summit you'll get all the right part numbers you need, or get them from Thunder like I told ya. You need intake gaskets, not head gaskets. You'll also need a timing cover gasket set. With both of those you should have all the gaskets you need.
Old 10-31-2006, 06:50 PM
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I believe the lt4 has 7/16 rocker studs and the LT1 has 3/8
Old 10-31-2006, 08:23 PM
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so should i look for 7/16 or 3/8 studs?
Old 11-01-2006, 08:34 AM
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7/16 or 3/6 because ive been told to get both of them.. So im not sure which one.
Old 11-01-2006, 09:44 AM
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Originally Posted by goodrich969
7/16 or 3/6 because ive been told to get both of them.. So im not sure which one.
That would depend on your rockers. If you get rockers that require a 3/16 stud then you need to get a 3/16 stud. Same for the 7/16 stud.
Old 11-01-2006, 12:21 PM
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im gettin 1.6 rr's probably, either LT4 rockers or pro mags or cranes.
Old 11-01-2006, 04:36 PM
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is the thread in the head the same in the LT4 and LT1s?
Old 11-01-2006, 04:56 PM
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are you asking me? because i dont know what your talking about
Old 11-02-2006, 08:48 AM
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it is just a general question to get some answers to help all that want to upgrade their LT1s
Old 11-02-2006, 10:18 AM
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all screw in studs(like lt1/lt4s) have 7/16 threads that go into the head, the top portion(where the rocker nut goes on) is either 3/8 or 7/16, if you get new rockers and want new studs, get 7/16s studs and rockers(they are stronger/more stable at higher rpms then 3/8s)
Old 11-02-2006, 05:34 PM
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So for for with 1.6 rr's the pushrods should be 7.200" and 5/16? For sure?!
Old 11-03-2006, 10:20 AM
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Yes. 7.200 and 5/16 for sure,
Old 11-03-2006, 11:01 AM
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Awesome, my cam has one or two little small grooves in it.. Ill post some pictures but I was wondering if it was still perfectly functional. Thanks so far.
Old 11-03-2006, 02:56 PM
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do you think its safe with one or 2 tiny grooves... my shop manager called them lil grooves... Still safe??
Old 11-03-2006, 04:07 PM
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Someone please answer my above question, I have another question. What retainers should I get? Thanks
Old 11-03-2006, 04:35 PM
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Another question to go with the above 2....i want to get new bearings incase mine are worn... what size and everything would i be looking for. Thanks again
Old 11-04-2006, 09:00 AM
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anyone?


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