the 552 carnage pictures i promised

dyno time plus 25 passes and she is headed for the scrap yard this was a d1te block lots of evidence of cap walk.i think the parting line or how the block was cast was the biggest problem.

ooooooooh, I can't stop flinching. That looks BAD! Don't mean to be rude but, ehem, there's your problem That really sucks, you didn't even really get to enjoy it.

What else can be said.....Wow....
Sorry for your luck. Our thoughts are with you in this tough time.
Keith

yep,i'd say the caps have walked off the job! that's sure ugly,but in a educational way.by the way,what did you have the mains tq'd on?

is there a build thread to this engine?

that is something ive never seen before.......

So how much power were you making BEFORE that bomb went off?

Larry if you are goping to toss the pistons and rods please get with Damon and see if he might need them for Plaques....

Sorry for your misfortune...

Randy

Bad Tune? Bad Balance? Bent Crank? Any Ideas?

Larry - Dang it man that is bad. Is this what happened on your last run at Pinks?

Wow , thats jaw dropping along with a few other choice words I'm in the middle of having an engine done and shyt like that really scares me . I feel very sorry for you, let us know if you are able to determine root cause.

I'm trying to figure this one out. Notice how saddles 1, 3, and 5 are still in tact. And those are the crank's main support, maybe the rods were not balanced before balancing? Just trying to figure out this mystery.

Another thing, saddles 2 and 4 both broke in the same dang place.

OUCH!

That looks painful, sorry about the engine loss...

bb429power wrote:I'm trying to figure this one out. Notice how saddles 1, 3, and 5 are still in tact. And those are the crank's main support, maybe the rods were not balanced before balancing? Just trying to figure out this mystery.

Another thing, saddles 2 and 4 both broke in the same dang place.

about the rod statement , should think about that . lol

Really hate that for you. I've never seen the webbing busted out of a 460 before.

I'm curious as to what crank you were using? What timing and fuel you were using Larry? looks like nothing was salvagable. I've tore some stuff up bad in my life ,but that takes the prize!! I feel for ya brother

cool40 wrote:yep,i'd say the caps have walked off the job! that's sure ugly,but in a educational way.by the way,what did you have the mains tq'd on?

115 tork + red locktite on the studs and nuts.it had .0028/.0029 clearance on the mains and .0025/.0027 on the rods.

torkair wrote:So how much power were you making BEFORE that bomb went off?

832hp-738tk

138 wrote:is there a build thread to this engine?

the old web sight if you dare.......

http://www.460ford.com/forum/showthread.php?t=121183&highlight=LarryT%27s+552

I've seen a couple of blocks crack from the main bolt hole to the cam tunnel at #2........I'm told it happens on #4 too. I suspect that's what happened first.

dfree383 wrote:Bad Tune? Bad Balance? Bent Crank? Any Ideas?

the crank kit was a 4340 forged internally balanced from the factory and yes it ill haunt me that i didnt have it rechecked. the timeing was 28.5* as it was on the dyno,i never touched it.the fuel was 112 sunoco that advertised good on 18:1 race motor,i only had 13.5/13.7 cr.i pulled the plugs after the first run they looked good and didnt have any detonation.i even had a friend look at them he said they were good but a little rich,cool so i was set to go.

56Tbird wrote:I've tore some stuff up bad in my life ,but that takes the prize!! I feel for ya brother

dad always said do it rite or dont do it at all!if you could have seen the grin on my face you would know i took that as a compliment

i went up to see the KY boys 4 weeks ago i am putting a new 572 "A" block together as we speek.getting my hands on new parts makes things feel alot better

I think this validates the "can I get by using a stock block for my 800 plus hp build?"........

And I'm not picking on Larry, its just that now we have all the stuff to make bigger power so easily the obvious gets overlooked.

Can it be done?.......sure............ How long will it live?........... who knows.



Sorry for your loss Larry, been there done that a few times myself.

I think that block had some issues that were hidden.Could'nt have missed the tuneup that much imo