Re: after 20 some years my cam is no longer
[Re: modified1090]
#714584
06/02/10 10:15 PM
06/02/10 10:15 PM
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Joined: Jul 2004
Posts: 19,318
State of confusion
Thumperdart
I Live Here
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I Live Here
Joined: Jul 2004
Posts: 19,318
State of confusion
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According to piston/valve clearance I`d be tempted to step up to a roller kit if possible and enjoy your new found power but if not and you like the performance, then get another .590 and get back at it. Another thing is hopefully all of that metal didn`t scar cyl. walls oil pump etc.  Sorry to hear this but I`d say you definately got good usage out of it....
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
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Re: after 20 some years my cam is no longer
[Re: Thumperdart]
#714586
06/02/10 10:21 PM
06/02/10 10:21 PM
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Joined: Sep 2009
Posts: 257
madison, ohio
modified1090
OP
enthusiast
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OP
enthusiast
Joined: Sep 2009
Posts: 257
madison, ohio
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Quote:
Another thing is hopefully all of that metal didn`t scar cyl. walls oil pump etc. Sorry to hear this but I`d say you definately got good usage out of it....
i hope there is no other damage as well oil psi still looks good so i think the oil pump is still good
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Re: after 20 some years my cam is no longer
[Re: Thumperdart]
#714588
06/02/10 10:24 PM
06/02/10 10:24 PM
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Joined: Sep 2009
Posts: 257
madison, ohio
modified1090
OP
enthusiast
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OP
enthusiast
Joined: Sep 2009
Posts: 257
madison, ohio
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Quote:
According to piston/valve clearance I`d be tempted to step up to a roller kit if possible and enjoy your new found power but if not and you like the performance, then get another .590 and get back at it.
when this engine was put together some years ago i remember having a bunch of clearance on the valves to pistons. i was tempted to look into a roller kit but in all reality how much would this cost and how much power gain would i see keeping it under .600 lift?
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Re: after 20 some years my cam is no longer
[Re: modified1090]
#714590
06/02/10 10:38 PM
06/02/10 10:38 PM
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Joined: Nov 2003
Posts: 6,293
Rock Springs
Bob_Coomer
master
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master
Joined: Nov 2003
Posts: 6,293
Rock Springs
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Quote:
Quote:
According to piston/valve clearance I`d be tempted to step up to a roller kit if possible and enjoy your new found power but if not and you like the performance, then get another .590 and get back at it.
when this engine was put together some years ago i remember having a bunch of clearance on the valves to pistons. i was tempted to look into a roller kit but in all reality how much would this cost and how much power gain would i see keeping it under .600 lift?
You will still see a gain, but most that go to a roller, go with bunch more lift.
Your looking at least $1200 to go roller, maybe more. Much more than just a roller cam, and roller lifter cost figures.
-New pushrods...almost everytime the pushrod length will be changed
-New valve springs,retainers, and locks.
depending on what you go with, the stuff I run and buy will cost you about $800 for the springs retainers and locks.
-then you start to question your rocker arm strength.
-new bronze dist geat/shaft.
Usually a engine needs to be built with the idea of a roller cam, this way its cheaper in the long run. This keeps one from buying certain things twice, like rocker arms, and dist shaft etc. Then if you dont have the proper clearance the pistons need to be notched machined/flycut etc.
IMO
If one is not willing to go with the good parts, and go with a aggresive roller cam with good lift numbers, I would stay with the Solid flat tappet.
I would look at the EDM lifters and go with a more modern cam design from Bullet racing or Comp etc. These Custom cams are definatly held to a tighter QC spec than the old MP cams, and you might make more power in the process for little cost...
Last Custom I had was a Bullet Racing, and it was about $200 for this cam...
Those EDM lifters would be a good investment for any flat tappet cam user. 
Love your car BTW 
[color:"red"]65 Hemi Belvedere coming soon [/color]
[color:"#00FF00"]557" Indy engine 1.07 60ft 144mph in the 8th 2100 lbs package [/color]
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Re: after 20 some years my cam is no longer
[Re: Bob_Coomer]
#714591
06/02/10 10:43 PM
06/02/10 10:43 PM
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Joined: Jul 2004
Posts: 19,318
State of confusion
Thumperdart
I Live Here
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I Live Here
Joined: Jul 2004
Posts: 19,318
State of confusion
|
Quote:
Quote:
Quote:
According to piston/valve clearance I`d be tempted to step up to a roller kit if possible and enjoy your new found power but if not and you like the performance, then get another .590 and get back at it.
when this engine was put together some years ago i remember having a bunch of clearance on the valves to pistons. i was tempted to look into a roller kit but in all reality how much would this cost and how much power gain would i see keeping it under .600 lift?
You will still see a gain, but most that go to a roller, go with bunch more lift.
Your looking at least $1200 to go roller, maybe more. Much more than just a roller cam, and roller lifter cost figures.
-New pushrods...almost everytime the pushrod length will be changed
-New valve springs,retainers, and locks.
depending on what you go with, the stuff I run and buy will cost you about $800 for the springs retainers and locks.
-then you start to question your rocker arm strength.
-new bronze dist geat/shaft.
Usually a engine needs to be built with the idea of a roller cam, this way its cheaper in the long run. This keeps one from buying certain things twice, like rocker arms, and dist shaft etc. Then if you dont have the proper clearance the pistons need to be notched machined/flycut etc.
IMO
If one is not willing to go with the good parts, and go with a aggresive roller cam with good lift numbers, I would stay with the Solid flat tappet.
I would look at the EDM lifters and go with a more modern cam design from Bullet racing or Comp etc. These Custom cams are definatly held to a tighter QC spec than the old MP cams, and you might make more power in the process for little cost...
Last Custom I had was a Bullet Racing, and it was about $200 for this cam...
Those EDM lifters would be a good investment for any flat tappet cam user.
Love your car BTW
Dang, I ALWAYS forget about the bronze gear and the p-rods.....my bad. 
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
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Re: after 20 some years my cam is no longer
[Re: maximum entropy]
#714596
06/03/10 12:43 PM
06/03/10 12:43 PM
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Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
BradH
Taking time off to work on my car
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Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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Quote:
Quote:
Another thing is hopefully all of that metal didn`t scar cyl. walls oil pump etc. Sorry to hear this but I`d say you definately got good usage out of it....
thump speaks the truth- you need to tear it down and check for f.o.d. in the engine. every cam failure i've ever seen (even minor ones) have caused at least some collateral damage.
Yep. Been there, done that, probably still have the bill for having to go through the short block after wiping a few lobes.
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Re: after 20 some years my cam is no longer
[Re: Labratt]
#714597
06/03/10 01:37 PM
06/03/10 01:37 PM
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Joined: Jul 2004
Posts: 4,384
Worst Weather USA
493_DART
master
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master
Joined: Jul 2004
Posts: 4,384
Worst Weather USA
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Quote:
KM,out of curiousity,are you running the Isky 8005's? I've had mine in for 10 yrs.,and when [Email]Jeff@Modern[/Email] checked the pressure on them a short while back,they maintained their 350/150# seat pressures VERY WELL! Excellent springs!  BTW...I'm running stock Eddy Performers,and a Comp Custom SQ lobe solid cam with approx. .620 lift. Engine's seen 6800-7000rpm on more than a few occasions,without any noticeable valve float whatsoever! 
isky 8005-a . they are 400 open
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