My 140,000mile 350 is on its way out. I plan on upgrading to either a 383 or a 355.
I know the 383 will result in more low end torgue and the 355 likes RPM.
Which one would be a better candidate for adding a blower?

I know the subject of 383's has been hashed to death in here.
But, I would like to know the differences.

 

The 383 is going to make more power than the 355, given the same exact build up. Forget how 'strokers dislike rpm' - it is just not the case. If the 383 is built right and balanced it can easily spin very high for an SBC.

 

Any can be supercharged (what kind - roots or centrifugal) ?

The question you are asking is : what is the better combo ..

The question in mind i find is : what do you want ?

You want high rpm power / or low end torque ?

what is your budget ? .. the more torque = the less traction ...

You have a horsepower # in mind ?

ID get a centrifugal SC'd 383 ..

 

I had a centrifugal supercharger in mind(Vortech or ATI).
I like the low end torque, being able to jump off the line.
My budget is around $2,000 now, supercharger later on, maybe.

My next question is if I build it with lower compression to compensate for a future supercharger will I be constantly wishing I already had the supercharger in? Or should I build it 10:1 and see if the supercharger is something that I really want. The problem then is I would have to rebuild the motor to lower compression or back off the supercharger.

 

So ur planning on rebuilding the 350 in ur car.
You're gonna leave it N/A and SC later.
Budget excludes the SC

Its better to build a blower motor as in works with ......

cause if you dont you'll need race gaz to keep that high
compression happy...

You could always switch thicker/thinner head gaskets to play with the compression.

The 383 has more torque.. tho torque and traction dont always work together..

Since you're not convinced on using a SC, If it were me, Id get the 383, and later on (who knows when..) you'll plan on
seing if you still want the SC, and work your way from there

 

I thought over the same thing this winter when I decided to rebuild my 350. Should I go 355 or 383. I looked at it this way. Both motors will need new pistons, rods, bearings, etc. Both motors will need to have your stock block (assuming you are using your stock block like I did) machined to accept the bigger pistons, hot tanked, etc. So add all this together and you will find the only difference in a 355 and a 383 is the price of a decent crank shaft. And for what that will cost, the extra mountains of torque and power are well worth it!! Go 383 my friend!

 

More motor = More power.

This is not a very hard question to answer.

But then again since I run a 385 I might be a little biased.

 

Not to mention the Price of the extra machine work to properly clearence the block, and you will need a small base circle Cam.

My last camaro had a 388 (bored .060 overin it with a

Eagle ESP 3.75" Stroke Crank
Eagle ESP Rods 6.0"
KB .060 Over 383 Pistons (Moves Wrist pin up further to off set longer Rod.)
Chet Herbert Solid Roller Cam & Roller Lifters some Where around .550" lift
Edelbrock Aluminum Heads Baught Bare/ Indy Cylinder head Installed Roller Springs, Titianmu retainers, 2.02/1.60 Valves Ect.
Crower Roller Rockers.
Barry Grant Demon 750 Carb.

BLAH BLAH BLAH.

any ways about 4 months after the engine was complete i had run times of 12.4-12.9 in 1/4 mi blowing the tires of at least the first 80ft and every shift. one day I get the bright Idea to borrow a friends set of drag slicks 26x10.5-15 and go to the track.

Well The car had pretty much stock suspension and once i hit second gear I new i had messed up, I heard a afull crack and when I got back to the pit I couldn't open my Drivers door. The car Was Severly Twisted. I had trouble taking out the t-top. Frame Shop wanted way to much to fix.

The moral of this is Make sure you have the suspension, SFC, LCA, Ect. To make use of the power you have. Torque is great untill you destory your car. If i had had a $180.00 set of subframe Connectors it would of prevented it.

Ok now I have been awake for 36 hours and starting to rant about nothing at all. Thanks for letting me voice my oppinion.

Go for the 383, Their is no replacement for Displacement, But Do The SFC's and suspension ALSO.

 

if you go with the 383, definitly get some SFC's, you wont regret it.

 

don't forget about the rear end too! if you mash a 383 with the stock 7.5"Gm rear....that'll be another crack you hear! 9" ford!!!

 

There is no substitute for Cubic Inches!

 

I was leaning towards the 383 to begin with. I just wanted some reassurance.

I completely forgot about SFC's, that wouldn't have been fun.


Thanks everyone for the info.

 

You can have all the power in the world but with out a way to put it to the ground Whats The Point. You Need the whole Package. just do it in steps unless your last name is rockafella.