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New build chevy 383 stroker

  
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New build chevy 383 stroker

 
JGRP JGRP
New User | Posts: 2 | Joined: 01/13
Posted: 01/28/13
08:35 AM

Hi everyone.

i'm planning on building a 383 chevy stroker for my c3 "71" corvette.

I am still in the blueprinting fase and would like some input from experienced people.
I have worked on cars before (mostly europeans), and have a lot of tools.
I also went through the different books from david vizard and the 350 rebuild book.

The engine has to run on pump gas, (98 or 95 octane), is solely gonna be used for street use on a sunday.

i was thinking of this set-up (borrowed from d. Vizard):
- 350 chevy (4bolt) from aaeq, then bored 0.030 (ofcourse) and decked 9.000
-scat rotating assembly, hypereutectic pistons 0.030 oversize , 9000 series crank, 7/16 premium rods
-stock pan and reworked oilpump
-heads: dart top end kit (but i'm not sure wich yet (180cc port)
-edelbrock performer intake,800cfm edelbrock carb
-hei distributor
-valvetrain:comp986 or beehives, aluminum 1.6 rockers (intake & exh),comp magnum pushrods,comp812-16 hydraulic flat tappet lifters,and a comp extreme energy hydraulic flat tappet single pattern 270 (106lca nd 4° advance)with a 3200 comp timing set.



Will i have to worry about additional block clearance with these rods and what bearings to use for the crank and cam?

anything to take in to account when using hydraulic lifters?

As far as gaskets go i'm considering felpro.

do these rotating assemblies need balancing?
any other comments or remarks are welcome.

Some questions might seem dumb , but there isn't really a big scene around muscle cars here so there aren't that much good engine builders around here so it has to be a DIY. Grin


-  

tuffnuff tuffnuff
Moderator | Posts: 7828 | Joined: 12/09
Posted: 01/28/13
10:46 AM

Welcome to the site JGRP,
You will run into clearance issues, but grinding will remedy that problem.

383Blockgrinding

A small base circle cam usually takes care of rod/cam interference, depending on lobe lift of the cam.
Grinding a little on the head of the rod bolt, again will solve that situation.

Rodandcaminterference

Smile  
When The Flag Drops.,.

tuffnuff

The Bull ***t Stops.,.
tuffnuff

P. Engineer, Engine Builder

pepsi1 pepsi1
Guru | Posts: 1718 | Joined: 09/11
Posted: 01/28/13
02:14 PM

+1 Tuff. JGRP welcome to CHP.

If you need more information go to.

http://www.cartechbooks.com/

1.You didn't mention if you have an automatic, or a manual trans.
But that year Corvette I'm guessing a 4 Speed Trans.

2.Scat says those assemblies are all balanced. I've seen then out enough to cause problems.
  I would first find a very reputable guy that really knows engine balancing. Take all your reciprocating parts to to him. The Scat assembly, clutch, pressure plate, anything that rotaes in your engine.
  My views of balancing is very simple. If your engine will see RPM speeds from idle to 6,000RPM a nuetral balance will work fine. Over and above that RPM overbalancing is the way to go. But talk to your balance tech. See what he recommends. If you have any questions ask.

One other thing. You mentioned a Dumb Question. I don't see any questions as being dumb or stupid. Only dumb or stupid answers....

Bob  

JGRP JGRP
New User | Posts: 2 | Joined: 01/13
Posted: 01/28/13
03:14 PM

Waw, i didn't expect such good answers in such a short time span. Ooo

Thx for the clearance sheets! i added them to my notes.

I have a good engine revision shop nearby with years of experience where i am planning to have the block washed, inspected, bored and have the assembly balanced.

those extra few bucks don't count up against a blown engine.

I have to admit my knowledge is pretty slim on transmissions,but it is a 4 speed.

Will it handle the extra torque or is it advisable to upgradeto another one?  

tuffnuff tuffnuff
Moderator | Posts: 7828 | Joined: 12/09
Posted: 01/28/13
05:33 PM

Chances are good that your 4 speed is a Muncie M-20 or M-21 close or wide ratio.
The M-22 is also a close ratio, but was an extra cost option and designed for road racing.
The Muncie was in production until the end of the 1973 model year, when the Borg Warner Super T-10 replaced it.
The Muncie is plenty strong and held up to Big Block power.

Smile  
When The Flag Drops.,.

tuffnuff

The Bull ***t Stops.,.
tuffnuff

P. Engineer, Engine Builder

stephenmtanner stephenmtanner
New User | Posts: 3 | Joined: 02/13
Posted: 02/04/13
07:41 PM

Go to AFR look at the HP you would like & copy one of their builds. That is what was done on my 1973 Vega. Copied the blown 690 hp build & it is awesome.  
1973 Vega 383 Stroker

tuffnuff tuffnuff
Moderator | Posts: 7828 | Joined: 12/09
Posted: 02/05/13
03:42 AM

+1
Following a tried and true example is the best idea for a novice engine builder, that lacks testing facilities and funds, for trial and error methods.

Smile  
When The Flag Drops.,.

tuffnuff

The Bull ***t Stops.,.
tuffnuff

P. Engineer, Engine Builder

skyeking skyeking
Addict | Posts: 2738 | Joined: 08/09
Posted: 02/05/13
04:36 PM

Hi there,
 If you do not own a 800 cfm carb for the 383
 then don't bother..Even a 725 road Demon is
 plenty for your needs. Good luck with the plan.  
skyeking