Oh great gurus of OSO ... Info on 1999 7.4L MPI 310HP Mrec black motors???
09-15-2005, 02:30 PM
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Oh great gurus of OSO ... Info on 1999 7.4L MPI 310HP Mrec black motors???
Hey folks I'm looking at a 1999 Formula 33' SS w/ 7.4L MPI any history good / bad on these motors?? They've got about 350hrs salty 
on them. TIA in advance for all your wisdom. 
Chris
on them. TIA in advance for all your wisdom. Chris
09-15-2005, 02:43 PM
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Re: Oh great gurus of OSO ... Info on 1999 7.4L MPI 310HP Mrec black motors???
Thanks JS As opposed to what internals 
and on what other years or motors? (Saw your reply over there too! )
As opposed to what internals and on what other years or motors? (Saw your reply over there too! )
09-15-2005, 02:49 PM
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Re: Oh great gurus of OSO ... Info on 1999 7.4L MPI 310HP Mrec black motors???
There damn good engines, just not upgradable. cant bolt on a lot of hp or add a blower. use them what they are intended for and you will get 1500hrs out of them.
09-15-2005, 02:50 PM
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Re: Oh great gurus of OSO ... Info on 1999 7.4L MPI 310HP Mrec black motors???
Originally Posted by NJgr8ful
Thanks JS As opposed to what internals and on what other years or motors? (Saw your reply over there too! )
As opposed to what internals and on what other years or motors? (Saw your reply over there too! )
09-15-2005, 02:53 PM
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Re: Oh great gurus of OSO ... Info on 1999 7.4L MPI 310HP Mrec black motors???
Oh forged 
I remember reading that somewhere now Guess you can't Whipple these things?! 
I remember reading that somewhere now Guess you can't Whipple these things?!
09-15-2005, 03:01 PM
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Re: Oh great gurus of OSO ... Info on 1999 7.4L MPI 310HP Mrec black motors???
You probably could, just for how long? My advice, stay away from them if you have the itch to go fast. Or buy the boat, sell the engines and put in what you want.
09-15-2005, 03:21 PM
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Re: Oh great gurus of OSO ... Info on 1999 7.4L MPI 310HP Mrec black motors???
Are they raw water cooled or do they have an optional closed cooling on them? Has it been kept in the water? If it's been kept in the salt and no closed cooling..... I'd hate to see what they look like on the inside.... rack, lift, trailer kept??
09-15-2005, 03:24 PM
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Re: Oh great gurus of OSO ... Info on 1999 7.4L MPI 310HP Mrec black motors???
Originally Posted by BajaRunner
There damn good engines, just not upgradable. cant bolt on a lot of hp or add a blower. use them what they are intended for and you will get 1500hrs out of them.
09-15-2005, 04:31 PM
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Re: Oh great gurus of OSO ... Info on 1999 7.4L MPI 310HP Mrec black motors???
Ditto one the advise so far. I guess I better hurry if I want a ride on that mistress!!!!
