got some deck height issues

i checked all 4 cornors
1 is 2 in the hole
4 is 1 in the hole
8 is 2 in the hole
but #5 is 6 out of the hole
not happy about this
i dont know went wrong when it was getting decked
i never had any issues with the guy that did it
that is why i had him do my block

so now what?
would i be safe to run a thicker head gasket
should i get the block redecked so they are all 6 out of the hole?
i even swapped out another rod/piston to make shure it wasnt a rod or piston issue
and got the same thing
i have to get a thicker head gasket anyhow since i had to have my heads shaved
and i cant do another block this one is a svo block
so i am even more pissed

have you checked the crank to make sure it isn't it instead?


Randy

we mic'ed the crank
had to run half x's
as far as the strok
no i havent
it is a scatt forged 4.150
but it is only #5 that is bad

with the crank in the block measure the piston down the hole and see if it is the same as the rest.... or measure the block deck height from the main OD to the deck and see if the are close or different.....this will give you an Idea wheather it is the block or crank..... and if you are not happy prove him wrong then ask for a new Block out of his pocket......



Randy

how much is 6 & 7 out , mite be cut on a angle

thanxs for the advice coug
i am gonna go meashure it right now

res0rli9 wrote:how much is 6 & 7 out , mite be cut on a angle

Agreed... I would think that if the crank (stroke) were off, #1 would also be way out of the hole.

Another issue would be rods mismatched, or some piston pin heights being off. Check the rod/piston combo that is way out of the hole to the one deep in... see where it falls. The tolerances of each individual piece really add up when you are working 3 decimal places.

crank seem's tp be ok
i checked it stroked all the way down with another hole and it was the same
as far as i can tell

i already swapped it out with another rod'piston came up with the same

jesse wrote:crank seem's tp be ok
i checked it stroked all the way down with another hole and it was the same
as far as i can tell

i already swapped it out with another rod'piston came up with the same

If the stroke is the same, and the rod/piston combo is the same... it leaves the block being cut wrong, if I am not mistaken.

i think i got it down to the block must have been cut wrong
well cant turn back time
so now what is my best option
i gotta get this up and going asap
i guess my opion's are
milll the block and get it so all pistons are 6 out of the hole
run a thicked head gasket
or
leave it and run a thicker gasket

i am open to any opion's and option's
i am in a bind here

Jesse He F^$ked up so he should get you a new Block and redo it .... He messed up not you.....



Randy

Jesse, I ran into this once and all my pistons were WAY out of the hole. I had the tops of the pistons milled down .016" to re achieve a zero deck height.

Your shop might re-cut the deck and take care of your pistons for you.

Greg

i have a set of custom dome's
cutting them to fit the block might be an option
but would rather not go that route

getting napa to buy me a new block ya right
i can ask i guess but i dont see that happin
i am tapped there is no way i can buy a new block

Call your shop guy and ask him how he wants to remedy his f- up.

I would just have him square deck the block to where all pistons are .006 out and run thicker gaskets.

If it's a stock block , if it's a aftermarket block then I would cut the # 6 piston to match the others.

it is a svo block
if i get the piston cut to match
than i gotta get the others balanced to match that one
and the deck would still be off
would i stand a chance on blowing a head gasket
since it is not sqair?
i did take a straight edge and check the block
it does look good
but i dont have a machinest straight edge
i am gonna see if the machinest will come on over here tomorro night and see it for him self
and take it from there

I've run up 20 out of the hole and used a thick head gasket no problem.

Does suck that it f-ed up though...........

It doesn't matter to the head gasket whether or not the deck is "square" ... the only criteria for the head gasket sealing is that the surface is "FLAT".

only one cylinder is out (#5) ? the deck would have a step in if not the rods/piston . can see more than that on a otb A460 block

DanH wrote:only one cylinder is out (#5) ? the deck would have a step in if not the rods/piston . can see more than that on a otb A460 block

sure you can but the A460 block is not in finished form.....when you get them they come 4.34 bore and you have to set your own deck height when the machining is being done.... But not after a fresh machine shop work over..... I feel the machine shop[ being a reponsible place of establishment should Replace the Block if it is their fault it is machined WRONG....


JMHO
Randy

thanxs very much guy's
it would be nice if the machine shop would replace the block
but like i said i dont see that happing

i orderd up the gaskets today for it
since i had to have the heads cleaned up a bit
i needed a thicker head gasket anyhow
i went bigger than i was gonna go to be safe
and go with it
it sucks and i am in no way happy about this but live and learn
and maybe it is time to find a new machine shop
anyone know of a good one in mn?

Jese tell me you are going to get the Deck square it is not any where right to be off that much on compression.....


Randy

jesse wrote:thanxs very much guy's
it would be nice if the machine shop would replace the block
but like i said i dont see that happing

i orderd up the gaskets today for it
since i had to have the heads cleaned up a bit
i needed a thicker head gasket anyhow
i went bigger than i was gonna go to be safe
and go with it
it sucks and i am in no way happy about this but live and learn
and maybe it is time to find a new machine shop
anyone know of a good one in mn?

Shanons Engineering, Inc.
15487 13th Avenue
South Haven, Minnesota 55382
Phone: (320) 274-5278

Talk to Jerry.

X2 on Shannon's, they did a nice job on my vac cam. Good outfit IMO.

i have delt with shannos a few times
jerry ist to bad but shannon on the other hand is nutz
they have our way is the best way attitude that kinda turned me off a bit
but i have never takin anything there
just bought parts from them
i might have to talk to jerry
i wont deal with shannon

i have been to their shop a couple of times....they skimmed my edelbrock heads when i skidded them over the dowel pins. they do like cortego gaskets which i have started using now too. jerry is just a little more of a gentlemen where his kid shannon is still rammy. fwiw, bobn