Jerry1161

Back Story:
First, thank you for taking your time to help me. If you can tell me everything I need to know, I'll buy you a beer ;D Last year, I bought a 1990 Iroc-Z convertible with a 305 and a 700R4 and I LOVE driving it. The speedo only works every now and again, and since it's my daily driver, it destroys gas. I'm getting a fuel sipping 4-banger car soon, and the Camaro is becoming a decoration in the garage. My dad is a mechanic, and he said I can use the spare 350 in the garage along with the 4-speed muncie he had on his Iroc-Z years ago. They both need rebuilt, but they should both work fine. I know very little about auto mechanics, as I am only a home builder/remodeler. I just want to get a list of everything that I'll need to transform my 90 Iroc with a 305 to a 383 stroker 500hp+ monster.

The Meat:
If you didn't read the back story, I have a spare 350 and a 4-speed muncie tranny.

What parts do I need to make it a 450hp+ 383 stroker (before supercharger)?

What transmission would you recommend since the muncie isn't recommended for over 400hp applications?

What supercharger kit is recommended for this build? (Preferably less than $2,500)

Can a 383 be fuel injected? (With different injectors than the 305's)

Will the whole project cost over $8,000?
Including 383 parts and rebuild kit, a tranny, supercharger and engine machining?

If any of these questions make me look like an idiot, I understand, but I'm not an auto mechanic. My dad is busy lately, and I just want to understand what all has to go in to this project before we start buying things.

MoJoe

iTrader: (5)

Start with a stroker crank or kit. This is an Eagle kit from Summit. But, several experienced guys here do not recommend Eagle. $820 for crank, rods, piston, misc. Or Callies for $1100+ just for the crank.
Is the 350 you are building a 1 piece Rear Main Seal (RMS) or 2 piece? That will determine which crank (kit) you need.

A 1 piece RMS block will also be a factory roller cam, which will go a long, inexpensive way to making more HP, than a flat tappet cam (less HP potential), or an retrofit roller cam (more $$).

AFR 195 heads add $1600 to the bill. You will probably want the 75cc version to keep compression lower for the 383ci, and especially if you add a blower.

The 700R4 can be built to standup behind this engine in the $1k range. You will likely add another $500 for a good converter with a stall speed (3000 rpm-ish) to work with your combination. The auto will help the 10 bolt rear end live longer than a manual trans. A T56 is a good manual choice, but all-in will likely add $2500 to the bill. With a manual trans, plus slicks and "spirited driving", plan on $2k for a 12-bolt or 9-inch rear.

I like the Eaton/Magnuson's used on the LSx crowd. But, I have not seen a kit to retrofit onto an SBC.

An SBC is an SBC. Absolutely. A stock TPI will get you all of the parts you need (sensors, wiring, ECM, etc), but will be an RPM, and therefore HP, limiter on this engine. Add an HSR manifold, actually now Weiand instead of Holley, with fuel rails and lines will add $700 to your bill. FYI: No EGR, so not emissions legal, if that is a requirement for you.

That depends on how much you have to buy new, vs used, vs bro deals, vs bartering. See what you have. Make a list of what you need. Add realistic price tags to that shopping list and add it up. I am not a good bargain hunter/finder, so would cost me $8k just for the engine. But, other guys here talk about doing the same for $1500.

JimKlim

Get the cylinders bored out on your 350, the heads can be bored out also which gives more air flow, go to (enginekits.com part number 383SK), everyone is going to throw out their opinions on parts, brand names etc..the fact is since this is your first build there's chances things won't work out or give you what you are looking for so I would try bartering/buying nice used items so you can learn on those first and when you want to replace them for higher end items you can do with our remorse.

mjdavis68

iTrader: (1)

Nicely said,,,,

vetteoz

iTrader: (13)

Need to make your mind up now.
A blower build is different to a 450 +Hp NA build

vetteoz

iTrader: (13)

Why reinvent the wheel ?
There are a 1001 383 builds documented on line with dyno results and parts lists.All he has to do is select one that suits his requirements and budget

For the output he thinks he wants he is going need quality aftermarket heads as mentioned above