GM 572 crate eng.
01-18-2009, 09:59 PM
#21
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Join Date: Sep 2008
Location: Look out shoals
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Personally, I think someone is trying to jerk your chain on the more clearances thing...meaning I think it is a crock of stuff. I know several people out here running the crate motor that you are probably talkingabout and they got it from Jegs. They are running dry exhaust, but they are NOT having any issues at all and the motors are working perfectly...just as yours is.
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11-06-2012, 08:35 AM
#23
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Old topic but still interesting.
We are always looking for reasonably priced HP.
I thought this was an interesting read - talks about Marine crate engines.
http://www.truckinweb.com/newproduct...crate_engines/
I also found a link to this site on another website - a marinized 572.
http://www.flagshipengine.com/
We are always looking for reasonably priced HP.
I thought this was an interesting read - talks about Marine crate engines.
http://www.truckinweb.com/newproduct...crate_engines/
I also found a link to this site on another website - a marinized 572.
http://www.flagshipengine.com/
12-19-2017, 12:56 AM
#29
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i tore into mine mainly cause I bought them used. but really main changes valve spring need changed to much pressure for hyd roller spinning 5400 for very long at all, can’t remember open pressure but mine stock had #195 on the seat, I’d run a better ignition system, and I’d run quickfuel 1050 and I would put a nice marine oil pan and run water and oil thermostats. I am always looking for them used sometimes pick them up for around $7500 used tear it down hone it rings n bearings.
01-09-2018, 10:20 AM
#30
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Ask FULL FORCE here on the boards about clearances.He made the mistake of not checking clearances before putting 2 really expensive engines in his boat....MANY folks have had clearance problems when they dont set an engine up for marine use. Clearances are important in a marine engine. Not saying you wont have success with just throwing any old engine in a boat. But when running an engine hard for longer periods of time and the engine starts building heat, things like pistons and valves expand. If there isnt enough clearance for these things to expand, things can begin to seize. Without checking for these clearances BEFORE you put an engine in a boat, you are running the risk of a failure in an engine that lots of boaters like to refer to as CATASTROPHIC FAILURE !!!!!! Happens all the time... Again, not sayin you wont get lucky, but it is way safer to do it right the first time.
