Hi.

I´m gonna rebuild the engine and want new/fresh/ligther parts and have looked at these:

Heads:
http://sdparts.com/category/cylinder-heads
intake+runners:
http://www.hawksthirdgenparts.com/pr...D-Runners.html
headers:
http://www.hawksthirdgenparts.com/products/Hooker-Camaro%7B47%7DFirebird-82%252d92-V8-SBC-Super-Comp-Long-Tube-Headers-1%252d3%7B47%7D4%22%252d-Select-Application-for-Pricing.html
stroker/rebuild kit:
http://www.jegs.com/i/Eagle/356/B13454L/10002/-1
http://www.summitracing.com/parts/FEM-CSMHP760-300/

of course is thisn´t all parts,need new cam,injectors ect. but this is only so far. do i need a new throttle body or does the stock work? i´m not after a lots of horse powers. just what a new fresch engine. btw wich aluminum waterpump can you recomend? whats the difference between short and long?

 

For a 383ci engine, I'd look into the Holley stealth ram. It'll outflow the Edelbrock intake, be easier to work on, AND it's cheaper. I "think" the only extra work is fabbing up some fuel lines.

....and those headers are great headers, but they're longtubes, which will cause ground clearance issues. I think the best bet is some shorty/mid length headers. Look up the Hooker 2055's, or check Top Down Solutions for some of Dyno Dons headers.


What heads ya gonna run? There are LOTS of different heads on that page you linked.

 

Oh sorry. I meant these heads:
http://sdparts.com/details/edelbrock/e5089

Okay. Do i lose torque on the low/mid rpm with the stelth ram intake or does the 383 compensate it? Is it a problem with full length headers on these camaros?i´ve heard that dyno dons headers are the best, do you know if that´s right? do ineed a new throttle body for the 383?

 

Couple things about torque and HP with regard to different intakes and engines.

The first thing you need to remember, is that when people say you "lose torque", they don't really mean you LOSE torque, you just make it somewhere else in the power band. Can you spin the tires? Yes, of course, well then you already have more torque than you need. Why not trade a few ft. pounds down low, for a lot up high??? These of course are gross generalizations, but you get the idea. These web forums scare people into the idea that these high flow, upper end intakes somehow act like a 4 cyclinder around town. Yes, the dyno can see these numbers, but you probably wont see much in the seat of your pants, if at all. ....Plus with a 383....you'll never know the difference. I promise.

Second thing is to understand how the engine and intake play a part in WHERE the power is made. Again, these are some gross generalizations, but.... ....it's like putting your thumb over a garden hose. You can get the water to shoot pretty far (and fast!) but you restrict the overall volume of water that can come out. Take your thumb away and the volume increases, but it just slowly burbles out and doesn't go very far. Same things. The TPI intake acts like your thumb. The air moves fast, and quickly fills the cylinders at low RPMS, creating more torque than the slow moving air of the Stealthram. Unfortunately, at some point the TPI just can't fill the cylinders anymore, and power drops off. At this point, the stealthram (without your thumb) still has more air to give, and the power continues to build. Since a larger engine obviously needs more air, the entire process is exagerateed. A TPI/383 makes MONSTER torque, but runs out of breath at even lower RPMs than on a 350.

 

that was a good explanation. Så what parts can you suggest?

A complete eagle 383 stroker kit or various brand of parts?

What size of throttle body?

can the edelbrock heads handle the air flow?

And if i´ll do this then i´m going with a holley stealth ram intake? as i also said, this is only a few parts. i no that i´ll need new injectors,cam, fuel pump and ect. btw. how do i know wich water pump i´m gonna go on? i want a good wp in alu. some specific brand? weiland,edelbrock or does it matter?

 

I have had very good luck with my Edelbrock Victor water pump.

 

it was that pump i´ve looked on. i can say honestly that i am a newbie on v8:s. i have only built on a mitsubishi evo 3 before so it is why i ask so much. but any help is appreciated

 

Abubaca good explanation and he is so right.
383 doesnt sound like its much bigger than a 350 but its the manner of the stroke that affects it..they can make use of a lot more air. Put a good head on and youll be surprised at its appetite and will, as he said still make great torque

Mine is built totally backwards and breaks most build rules....not even a slug on the street. Thumbs up on the Victor pump..good stuff.

 

You guys with your stroked small blocks. I've really been thinking lately of scapping my ideas for a 377 in favor of a 406. More cubes just makes power easier to produce and makes more torque throughout the curve.

 

I was on that fence for several months too.
I figured if I was going to race it, 377 solid roller.
If I want to drive it, 406 hyd roller.
406 won
Happy with the choice but still wonder what it could have been.
HSR doesn't loose anything I can tell on the low end. small tube headers with oversize exhaust seems to have a larger negative effect on the low rpm torque than the intake did. Still has enough torque to burn MT 275 DRs easily.
Jp

 

Evo, I'm hesitant to recommend parts. First, I'd hardly consider myself an expert, and second, so many things play a part in choices. Budget is only one small aspect. I don't mind pointing you in a certain direction though, as with the TPI versus Stealthram issue. As for those heads, they're considered and entry level head. Why? Honestly I have no idea. LOL! ....maybe do a search and see what you can find?

 

Part of what that search will revel is that the heads come with useless springs. Guys have experienced valve float even with stock roller cams! Once you factor the cost of valve springs into the equation, you're already at the cost of a better set of heads (read: Trickflow). As Abubaca said, try a search. Google will teach you everything you need to know about those heads.

 

sorry for all the trouble but many thanks for your help anyways. i have decided that i am probably gonna do a lm7 swap instead.

 

No trouble at all. ....and I think the LM7 is a good choice.

 

yes it seems to be so. is their a bigger difference between l33 and lm7 engine? except that the l33 has alu block?