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Motor carnage pictures, UGLY!
#1638992
06/27/14 02:14 AM
06/27/14 02:14 AM
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Joined: Aug 2003
Posts: 43,248
Bend,OR USA
Cab_Burge
OP
I Win
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OP
I Win
Joined: Aug 2003
Posts: 43,248
Bend,OR USA
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One of the motors I put together for a customer and friend years ago fail this past weekend at the Oldies but Goodies race at Woodburn,OR. The current owner bought the motor from the original owner several years ago and had me change the cylinders heads, intake and cam two winters ago. I took off a set of wore out Mopar Stage IV cast iron heads and put on set of ported Indy 440-3 heads, that pick his car up around 1.5 seconds in the 1/4 mile. the motor is in a 1965 Belevedere 1, the car ran in the mid tens with this motor, 426 Street wedge with a 4.250 stroke crank,496 C.I., Comp Cams custom ground solid roller cam and a 1050 CFM Dominator. He ended up in the final round on Sunday in his class and redlighted, the motor let go in high gear before the finish line  Evidently he had a rod bearing spin and didn't realize it so he kept his foot in it, it might have even spun in the semi finals, I'm not exactly sure when it happened due to the excessive damages once both rod bolts broke. It has a set of Eagle H beam rods in it, it FUBAR them two rods, the block and crankshaft   I don't know how to attach two pictures to this post so I'll attach one to this post and the other one on my reply to the next post
Last edited by Cab_Burge; 06/27/14 02:16 AM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Motor carnage pictures, UGLY!
[Re: tubtar]
#1639003
06/27/14 11:41 AM
06/27/14 11:41 AM
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Joined: Nov 2003
Posts: 2,131
New Lenox IL
cudadon
top fuel
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top fuel
Joined: Nov 2003
Posts: 2,131
New Lenox IL
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Quote:
That had to make a gut wrenching sound.
I'm not certain Mike.........but I don't think that's gonna buff out. 
I had one with eagle rods break. It looked just like that. 
tubtar it may have made a bang and then silence. With open headers I coudn't hear much.
But it quit rotating immediately.
Right after that is when I started having RBRE build my engines. Haven't had a problem since. 
That was about 14 years ago.
Don
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Re: Motor carnage pictures, UGLY!
[Re: pittsburghracer]
#1639005
06/27/14 01:24 PM
06/27/14 01:24 PM
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Joined: Feb 2013
Posts: 760
Canada
CTD5.9
super stock
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super stock
Joined: Feb 2013
Posts: 760
Canada
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Quote:
That's kinda why I have to laugh when I read these "what can I do to make my 600 HP stock block engine last"? I don't care what kind of band-aids you install on your engine, whether its concrete or a girdle if you race on a weekly bracket type program its not is it, but when is it going to break. 600 plus HP stock block engines break. Sooner or later. I know are the guys that put 25-50 runs a year are going to chirp in here but I'm talking 600 plus HP engines that see 150 plus runs a year, 2-3 years. 
I am kind of interested, what's wrong with stock blocks that cause rod bearings to spin, break rods and then throw them through the side? crappy oiling?
I understand the cracked webbing, cap walk and broke cranks etc but don't know why the block is to blame for this one.
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Re: Motor carnage pictures, UGLY!
[Re: CTD5.9]
#1639008
06/27/14 02:04 PM
06/27/14 02:04 PM
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Joined: Nov 2004
Posts: 6,890
North Alabama
Monte_Smith
master
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master
Joined: Nov 2004
Posts: 6,890
North Alabama
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Quote:
Quote:
That's kinda why I have to laugh when I read these "what can I do to make my 600 HP stock block engine last"? I don't care what kind of band-aids you install on your engine, whether its concrete or a girdle if you race on a weekly bracket type program its not is it, but when is it going to break. 600 plus HP stock block engines break. Sooner or later. I know are the guys that put 25-50 runs a year are going to chirp in here but I'm talking 600 plus HP engines that see 150 plus runs a year, 2-3 years.
I am kind of interested, what's wrong with stock blocks that cause rod bearings to spin, break rods and then throw them through the side? crappy oiling?
I understand the cracked webbing, cap walk and broke cranks etc but don't know why the block is to blame for this one.
When the main web cracks, the crank is no longer supported and is more or less free to "flop" around in there. Usually one of two things happens. It breaks the crank or grabs a bearing.........neither of which is a good thing.
Put enough runs on a high HP stock block motor and this WILL happen to you. Not a matter of IF, but WHEN.
Monte
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Re: Motor carnage pictures, UGLY!
[Re: Monte_Smith]
#1639009
06/27/14 03:05 PM
06/27/14 03:05 PM
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Joined: Feb 2004
Posts: 2,073
Tulsa, Ok
WadeMetzinger
top fuel
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top fuel
Joined: Feb 2004
Posts: 2,073
Tulsa, Ok
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Can you offset grind the crank to 4 3/8 or 4 1/2 and move to Chevy 2.2 journal and reuse the crank?
Wade Metzinger 918-809-0987 71 Cuda 9.28@145 -1s, Pglide 68 Cuda 10.64@124 1.45 60's 318->390 eddys Moparts discount code on WIX - moparts www.Filter1.com
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Re: Motor carnage pictures, UGLY!
[Re: WadeMetzinger]
#1639010
06/27/14 04:21 PM
06/27/14 04:21 PM
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Joined: Aug 2003
Posts: 43,248
Bend,OR USA
Cab_Burge
OP
I Win
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OP
I Win
Joined: Aug 2003
Posts: 43,248
Bend,OR USA
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Quote:
Can you offset grind the crank to 4 3/8 or 4 1/2 and move to Chevy 2.2 journal and reuse the crank?
That is a possibility, depending on how bad the crank is hurt. It is a older Crower top fuel crank so maybe it is saveable  I did find three cylinders that have small holes in the bottom from debris  That block is toast as far as I'm concenred I'm working him up a quote for a new short block using a 4.5 bore World block with new crank, roods and pistons. He is in a hurry so time will be the deciding factor on who's part I use on this build, it will be a pump gas motor around 540 + C.I. so he can still stay on the tens It ran mid to low tens before at 496 C.I.(I think that is hte number with 4.25 stroke, 4.310 bore). I'm still baffled about what failed first or what caused the #1 rod bearing to spin  OH,WELL I'm still learning, hopefully 
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Do you still have that 230-400 block I sold ya? 
