Cascade Crew

[1987_sportcoupe]

Alright will do. The cylinders have already been bored .30 over but not sure when so ill just have a machinists check over everything.

[Twilightoptics]

Ideally, cylinders are measured for initial size. If they need to be bored over, you don't just Bore 0.030" over factory. You choose the pistons you are going to run, purchase them, measure them, then bore the engine according to the piston manufacturers spec above the measurement.

If it's just bored to 4.030 then some pistons may need a smaller or larger hole depending.

You also just bore the motor until there is about 0.005" left before your target, then you hone the 5 thou out with yet another machine that takes out less metal but is an art.

[Twilightoptics]

You should also pick up a SBC book. It'll fill you in alot too.

[1987_sportcoupe]

Yea I picked up a book called how to rebuild your sbc that goes through the entire assembly process. Any suggestions on some good pistons for a decent price?

[Twilightoptics]

You get what you pay for.

TRW are strong as hell but heavy.

Ross, JE, Weisco, Eagle, Scat.

Scat is on the lower end, JE on the high end.

And dozens of others.



You need to decide what you're building before you start talking pistons. AND you need to have the engine decked after the rod/pistons have arrived and been assembled.

[1987_sportcoupe]

I want this motor to be reliable and have a little bit of power. I know I'm not building a race car just a solid 350. Shooting for about 310 HP.

[BluFbdy]

It depends what you want to do with it, cast are strong ish hyper pistons are light but weak and forged are solid but pricey as hell lol ask me how I know, I believe we went over this a few months back...... moral of the story is if forged isn't in your budget and you don't plan on boosting it hyper pistons are the affordable choice, make sure you get them from a company, a legit one, no house brands. Found out the hard way house brands are not matched for weight and they won't balance well

[izcain]

Weight is all in the design of the piston, some hypers are alot heavier then forged......... Hypers are also extremly strong but cannot take a ping well. Forged are "softer" in a sense and so they absorb the ping better without shattering.

I dont mean the metal is softer I just mean the material cushions better without shattering.

Look up pictures of piston failures and normally you will see a hyper piston shattered in the bore from being pushed past the limits. Forged you will see something melt or bend in some way instead of the pistons blown to bits.

[1987_sportcoupe]

Alright I have another question, I talked to Paul at Pacific Machine Shop and he gave me a list of what I need to bring in to have my motor balanced which included the flywheel and pressure plate. So my question is what flywheel should I go with here? I'm going to be running a WC T-5.

[Alphius]

2-piece RMS 153-tooth flywheel. You can get one at a parts store by telling them you have an '83-'85 V8 Camaro with a T5.

[1987_sportcoupe]

Ok thanks but now my question is what to do about a starter? I have a 70s 350 and so I hear I'm going to have problems with a starter that works

[Twilightoptics]

153 tooth starter works with 153 tooth flywheel.



I have a SFI Hayes flywheel, 2 piece rear main 153 tooth. I think I was asking $50 for it if you want it. Real good shape. You can still see the turn marks in it.

[1987_sportcoupe]

Oh now I see the price lol. Ill take it.

[Twilightoptics]

http://www.cascadecrew.org/phpBB2/viewtopic.php?t=8907

Link to the picture.