Where do you guys suggest (I know there are tons of vendors on here but I don't know most of them) to find both bottom and top end parts to rebuild my LT1.

I'm ok with a couple different vendors but I'm not looking to go to 20 different places to source the parts. If it helps narrow it down, I'm looking to build a 355, hoping for 350-400rwhp.

Where should I look? Only thing I (think I) want is a GM 847 cam, I want a good power band. Car is a 93 6 speed Z28.

Would also like steel crank with forged pistons/rods. Just don't know what's a good (reasonably priced) brand for them.

It's a daily driven car and will be that way for a little while so keep that in mind with part suggestions.

 

What are your long range goals, if any, beyond 400rwHP? If you aren't turning ridiculous RPM, aren't running a power adder, and just going with good heads and cam, a refreshed stock crank, stock rods and a set of good hypereutectic pistons is all you need. There are people making that kind of HP on an untouched stock rotating assembly.

Are you building the engine yourself, or is a shop building it for you? If a good shop is building it for you, get their input on the parts they feel comfortable with, and run them by the people here to see if there is a consensus that the parts are good choices.

 

My father is doing the work on the motor. He knows his stuff for older motors but the 2-3rd gen SBC is a bit newer than his expertise in parts is in.

Reliable 400rwhp is the goal, daily now and in a year or two (when I buy a DD) it will become a 1.6 mile roadcourse car. I want the 847 so I can spin it out to 6800 and put short gears in it.

I was thinking forged bottom would allow me to do this and have the smallest chance to damage my engine.

 

And I don't have long range goals beyond 400rwhp. I have a nagging thought of eventually (after its not a DD) adding a small shot for drag strip use (~75 shot).

WIth 400rwhp, what clutch should I be looking at? Also, how long will my 6 speed last with that power (don't have to tell me about the rear end btw, I know it's easy enough to break with stock HP esp on 6 speed)

Unrelated to cars note: You ever make it to Orlando area Injuneer? Everything I post asking a question about, you have a great answer. If you make it down here, I'm buying you a beer.

 

Advanced Induction can supply you with everything you need (heads, cam, rods, crank, pistons, etc.). www.advancedinduction.com. Contact them and discuss your goals with them and they can hook you up. A stock turned crank, forged rods, and a forged piston is (likely) all you need to run 400whp reliably. 400whp is commonplace nowadays, especially with the vast selection of valvetrain options available.

And only a 75 shot? Psh...why even bother?

 

Heh thanks. And 75 shot would be just for that tiny bit off the ET when I do take it to the strip. Don't want to wear the motor out with spray in a straight line then not have it at peak performance when I hit the roadcourse.

Gotta make up for it on the big end because I know this car is not going to hook. The suspension will be set up tight, for corner hugging.

Will my crank turned, or a new cast one, hold up to the abuse of 6800rpm (since I'm looking at the 847)? I really prefer to make it a mid/top end pulling car the that's the best cam I can seem to find to do that.

 

are you looking to do heads/cam or just cam? You should be able to daily drive a heads/cam setup with a 224/230 cam..

I went with AI heads & cam, forged Mahle powerpak pistons, compstar 6" rods and valvetrain, it was around $4500 total

 

I deleted that last post I made, I don't know what I need/want yet lol

We are reworking the stock heads, doing cam and rebuilding bottom to 355.

 

Crap, I think my dad is ordering the parts for the bottom from Carquest already and I'm pretty sure he's getting hyper pistons. Will those hold up to a 6800rpm very long?

Should I be looking at a less agressive cam now?

Also, I need to figure out what Valve Springs, retainers, keepers and rocker arms I need for this build.

Are there any other full cam kits other than LT4 Hotcam?

 

Hypereutectic pistons are not RPM limited. The fact that they are very light makes them good for high RPM applications. The problem comes with power adders. Because the hypereutectic alloy is very brittle, they will crack under severe detonation, as you might find in a nitrous or forced induction engine. I'd also avoid them with very high dynamic compression ratios.

 

I'm looking at the possibility of the 280xfi Cam instead. Looking at this full kit http://www.summitracing.com/parts/CCA-K07-467-8/ It has all except rocker arms and pushrods. Stock pushrods should be good right? What rocker arms should I get?

Do I need a new throttle body and/or Intake manifold? I have a 93 so I know the TB would be different from other years but what about the intake?

Do I need bigger injectors for this setup (22# now)?

 

go with a AI/LE heads and cam package. Let one of the two pick you out a custom cam...you will be happy in the end. Foget off the shelf grinds.

re use the stock crank, stock rods, and replace pistons with hypers or cheap forged ones. Use ARP hardware in the shortblock.

 

They are not a site sponsor.

 

If your looking for about three sixty rear wheel horse power then here are the parts needed. Also if you have faith in your bottom end you wont have to pull it out and rebuild that to. The original bottom ends are made for about four hundred fifty horse power. first go the website popular hot rodding.com there you will see a tab on the left side of the page. It talks about a head and cam package that will give you what you want and it also has pictures and instructions and a parts list everything you need. the tab is called Edelbrock Lt-1 Performance Package - The Equalizer read the article and let me know what you think. I did it and put some 3.23 rear gears on my 1995 Z and got around four ten horsepower to the crank while still getting twenty three mpg on the highway you cant beat that you have the speed and take off with the gears and still have have good economy.