Re: Rebuilt 360 cranks and then stops
[Re: magnum440d100]
#2628064
03/02/19 09:26 PM
03/02/19 09:26 PM
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Joined: Jan 2003
Posts: 9,826 las vegas
70AARcuda
master
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master
Joined: Jan 2003
Posts: 9,826
las vegas
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Stock rocker arms will be punched thru by the pushrod went a stiffer valve spring is used...
MP made or makes a heavy duty non adjustable rocker arm to correct that problem. Still for sale at Mancini Racing..
Tony
70 AARCuda Vitamin C 71 Dart Swinger 360 10.318 @ 128.22(10-04-14 Bakersfield) 71 Demon 360 10.666 @122.41 (01-29-17 @ Las Vegas) 71 Duster 408 (10.29 @ 127.86 3/16/19 Las Vegas)
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Re: Rebuilt 360 cranks and then stops
[Re: magnum440d100]
#2628097
03/02/19 11:32 PM
03/02/19 11:32 PM
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Joined: Jan 2003
Posts: 1,908 Nebraska
4406bbl
top fuel
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top fuel
Joined: Jan 2003
Posts: 1,908
Nebraska
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And in my opinion your cam, lifters, pushrods, rockers. valves, and keepers are all junk now. You will also need new springs and retainers that are for whatever cam you use. Did you tell whoever did the valve job what cam you had. No excuse for this if you did...
Last edited by 4406bbl; 03/02/19 11:35 PM.
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Re: Rebuilt 360 cranks and then stops
[Re: 4406bbl]
#2628106
03/02/19 11:47 PM
03/02/19 11:47 PM
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Joined: Jan 2010
Posts: 1,944 woodcrest, CA
magnum440d100
OP
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OP
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Joined: Jan 2010
Posts: 1,944
woodcrest, CA
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And in my opinion your cam, lifters, pushrods, rockers. valves, and keepers are all junk now. You will also need new springs and retainers that are for whatever cam you use. Did you tell whoever did the valve job what cam you had. No excuse for this if you did... Yes. Everything was supposed to have been spec’d out for this cam. What springs/retainers/pushrods/valves/etc should I go with?
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Re: Rebuilt 360 cranks and then stops
[Re: 4406bbl]
#2628136
03/03/19 01:01 AM
03/03/19 01:01 AM
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Joined: Aug 2006
Posts: 2,537 God's Country Maryland
GODSCOUNTRY340
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master
Joined: Aug 2006
Posts: 2,537
God's Country Maryland
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You were getting coil bind on both intake and exhaust valve springs, proof is both rocker arms failed. You'll most likely find a bunch of bent pushrods.
I love the smell of Deer guts in the morning, it smells like... VICTORY!
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Re: Rebuilt 360 cranks and then stops
[Re: magnum440d100]
#2628157
03/03/19 02:33 AM
03/03/19 02:33 AM
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Joined: Jan 2003
Posts: 1,908 Nebraska
4406bbl
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top fuel
Joined: Jan 2003
Posts: 1,908
Nebraska
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Do not run or rotate this engine anymore until you pull heads and correct retainer to guide clearance about .060, check for coilbind, and check piston to valve clearance. It is not normal for pushrods to go thru stock rockers with that cam. I have done it, and gone thousands of miles no problems with that cam and correct springs.
Last edited by 4406bbl; 03/03/19 02:34 AM.
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Re: Rebuilt 360 cranks and then stops
[Re: magnum440d100]
#2628801
03/04/19 06:24 PM
03/04/19 06:24 PM
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Joined: Feb 2005
Posts: 530 SW CO
HemiSportFury
mopar
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mopar
Joined: Feb 2005
Posts: 530
SW CO
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I'd replace it. Be sure to check the rod too. But most importantly, why did this happen in the first place?
How does the cylinder wall look?
Last edited by HemiSportFury; 03/04/19 06:24 PM.
'64 Sport Fury, 528 Hemi, FiTech EFI, 4-speed, 4.10 Dana 60 '57 Belvedere 2dr sedan, current project in process '19 Cherokee Trail Hawk Elite '03 Ram 2500 CTD HO, 6-speed 214,000 miles and still going strong
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Re: Rebuilt 360 cranks and then stops
[Re: magnum440d100]
#2628945
03/05/19 12:54 AM
03/05/19 12:54 AM
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Joined: Feb 2005
Posts: 530 SW CO
HemiSportFury
mopar
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mopar
Joined: Feb 2005
Posts: 530
SW CO
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So are you thinking the coil bind is your only problem? It looks like the valve was tagging the piston too. Did you check P-V clearance and degree the cam? What does the head look like? Any sign to piston-valve contact on any other cylinder. You don't want to go through this again. It could have been much worse.
'64 Sport Fury, 528 Hemi, FiTech EFI, 4-speed, 4.10 Dana 60 '57 Belvedere 2dr sedan, current project in process '19 Cherokee Trail Hawk Elite '03 Ram 2500 CTD HO, 6-speed 214,000 miles and still going strong
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Re: Rebuilt 360 cranks and then stops
[Re: HemiSportFury]
#2628949
03/05/19 01:02 AM
03/05/19 01:02 AM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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^^^ agreed, I would mockup with a pair of light springs & go thru all of the clearance checks
live every 24 hour block of time like it's your last day on earth
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