dvardaman85

so building a 305 is a joke right? i found a 350 with 1 cracked piston other than that it looks pretty good. supposedly it ran recently. i mean pistons dont just crack right?

should i stray from this?

could the crank be trusted for another block?

so many questions any advice on the matter?

he only wants 150 bones for it.

Guest

Not without a reason they dont, unless the part had a flaw and thats generally not likely. Where's it cracked?

InfernalVortex

iTrader: (4)

If the bore isnt damaged (cracked, broken, etc) I'd use the block and rebuild it.... if it's a 1 pc RMS roller block.

I wouldnt just replace the piston and drive it, though.

dvardaman85

well the broken piece is actually like a chunk straight off the top of the piston. you know looking down into the cylinder its off hte top of the piston you cant even see the crank or rod below it.

that being said is it actually a waste of money to rebuild this 350 should i stroke it? i mean for the difference in power and price has it been proven well worth the money just to stroke it?

and how on a bare block could i tell if it is 1 piece or two piece rear main seal

thanks alot for the help

zraffz

Was it a fuel injected motor?

Sounds to me like somebody's Air/fuel ratio was way out of whack and fell victim to detonation. If the cylinder walls aren't scored (which I'd bet they are) I'd leave it stock bore. If you run your fingernail up and down the cylinder walls and it gets hung up anywhere, chances are good its garbage.

Apeiron

It depends how many parts you're replacing. If you need a new crank and pistons, then the material cost is the same.

Look at the rear main seal area.

dvardaman85

well i got a different 5.7 block for free so i am hoping that yall can help me out and tell me 2 or 4 bolt and 1 or 2 piece rear main seal

sorry about my ignorance but im trying to learn

dvardaman85

also

KnightmareCS

iTrader: (7)

can you get us the casting code? it's on the top driver's side where the transmission connects. that'll help.

Damon

That's an earlier 2 piece RMS block. The wide groove just inside the rear edge of the rear main is where the 2 halves of the rear main seal sit.

Grumbles

On the upside it IS a 4bolt

Twin_Turbo

iTrader: (25)

a chunk off the top, a broken ring land is usually the result of detonation.

Tobias05

Lol, no he needs to get one of those 6 bolt main blocks!

zraffz

nah he should stay away from those
They belong in pickup trucks and fourth gens.

Grumbles

I see what you did there

dvardaman85

ok so two piece rear main. thank you and yes i can get cast numbers.

Tobias05

So is it going to be faster than the impala, this second time around?

dvardaman85

i dont know what the impala runs to be straight... so i hope so