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Okay guys, I’m a newbie to the performance section, so go easy on me. cwm4 Anyway, the time has come to replace the engine in my 94 RMS. The original one with 261K bit the dust (one burnout too much I guess). So in the garage, I already happen to have a completely disassembled LT1 out of a 94RMS that had 161K on it, and still was in good running condition when I took it apart. I eventually planned on rebuilding it sooner or later (now sooner than later). All bearing surfaces and cylinder walls are in good shape. You can even still see the factory cross hatches. cwm7

But I’m new to building engines. I can yank them out and reinstall them just fine, but I’ve only built one before (a gen 1 SB Chevy) with help from my father when I was 15, and I only retained some of the info on how to do it. So I’ll use this thread to ask all my silly questions….

Now onto the questions:

What all really should be done to the replacement block before I begin rebuilding? I was thinking of taking it to shop to prep it for me (have it cleaned, check for cracks, and possibly have them install new cam bearings and freeze plugs) What should something like this typically cost? Is it really worth it? Or should I just slap new bearings and rings in it and call it good? Should I replace the pistons? Have the crank cleaned up?

Also, if anyone has any advice/suggestions on rebuild kits (stuff to buy or avoid) I’d really appreciate it. I’m not looking to break the bank or build a mean ass race engine, I’m just looking to build a decent engine for a car that gets driven 350 miles a week on average with little extra HP over stock. I was thinking maybe about 325hp at the engine? What kind of cam/springs/RRs should I go with for something like that?

I’m sure I will have a bajillion other dumb questions as I go along. I normally would’ve just searched for this info, but we all know that ain’t of much use on this site anymore. cwm6 When/if I make progess I will post up pics of the build. Thanks in advance for any help :)
 

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I rebuilt my LT1 using this book: Amazon.com: How to Rebuild Small-Block Chevy Lt1/Lt4 Engines Hp1393 (9781557883933): Mike Mavrigian: Books

I liked it. Great step-by-step instructions, all the torque specs are there, tools to use, pictures, etc... It's very complete :)

By it, read it first then keep it close when you're working on the engine.

For your power question, my motor was a basic stock-ish rebuild and I added a cam/rockers/springs and all the bolt-ons afterwards. Made very nice power!
I have a GM 846 cam (Crane 109831), Comp Pro-Magnum 1.6 rockers and Comp springs. IT had a nice and smooth 3000-6000 rpm powerband and a cool lumpy idle.

If it's a true daily driver, you might want to go a little smaller on the cam to keep drivability closer to stock.

Good luck!
 

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......Or should I just slap new bearings and rings in it and call it good? Should I replace the pistons? Have the crank cleaned up?

Also, if anyone has any advice/suggestions on rebuild kits (stuff to buy or avoid) I’d really appreciate it........
OK......check the link ------>>> http://www.summitracing.com/search/?keyword=lt1+rebuild+kit+engine&page=1

All these kits come with pistons although I'm 100% sure you can get a kit w/o pistons (I did a few years back). Personally, I say re-use the stock pistons; they should still be good ;) .

But if not, the 2nd or 4th kits are what you'd want.

The 2nd kit is 10.4:1 CR with 58cc heads......and the 4th kit is 9.8:1 CR.

Good luck :) !

KW
 
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