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jtsmooth
08-23-2011, 11:06 AM
I have an old 86 MC pro comp with a ford 351 but have a cracked block.

Can anyone advise if any other engine will go in or only the Ford?

Cheers ;)

JimN
08-23-2011, 11:14 AM
I have an old 86 MC pro comp with a ford 351 but have a cracked block.

Can anyone advise if any other engine will go in or only the Ford?

Cheers ;)

I can't see any reason to use another make- the 351 is easy to work on, add performance and they're common enough that it won't cost more.

gr82bgreen
08-23-2011, 11:32 AM
I have an old 86 MC pro comp with a ford 351 but have a cracked block.

Can anyone advise if any other engine will go in or only the Ford?

Cheers ;)

Way too much work to put in another brand. The 351 is easy to find. search this forum and you can find many affordable upgrades, such as gt40 heads as well. Just remember if using and auto engine to install all the marine parts, ie starter, alt, water pump and brass frost plugs. Good luck.

dpcsar
08-23-2011, 12:02 PM
I looked into this. It is possible, but I don't know how easy it will be. I think the best replacement would be a GM 350. I didn't do it and choose to rebuild my Ford because the bell housing that I found to mate the engine to the transmission was ~$300. For that price you can get a lot of performance parts. Sure GM parts are a little cheaper, but tack on the new bell housing and motor mounts, etc. and price looks like it will get over a rebuilt 351w.

I know a guy that can get it rebuilt for you. He is doing mine and we built a 393 out of a '69 block.

Bouyhead
08-23-2011, 02:09 PM
Totally possible and not that hard. I know, because I did the swap back in the mid 90's on a 88' Prostar. Brand new motor complete with trans. My buddie who owned a marina at the time got it for me as a boat show special when they were packing up @ the end of the Javits show in NYC. Other than fabbing up a new plate for the motor mounts no other mods were necessary. 310 HP MPI motor, this boat had some holeshot and was a blast to drive. This would have made for a good thread had I documented everthing. All I have are a few old scanned photos.

69880
69881

BrianM
08-23-2011, 03:54 PM
Forget the swap just rebuild the motor. If you want more power have someone build you a 408 Stroker (351 block stroked). That will give you oodles of power and still probably cost less than converting to a Chevy.

jtsmooth
08-24-2011, 04:21 PM
thanks for the replys guys

im in the uk and trying to find a replacement block in the uk is hard, only seen 1 in 6 months and missed out on it.

i have spoken to a company who say they can weld up the block, anyone had this done or have any thoughts on it?

1redTA
08-24-2011, 10:52 PM
welding cast iron should be done by someone who really knows what they are doing. Where is the block cracked and how much does the company want to re weld the block?

gr82bgreen
08-26-2011, 02:09 PM
thanks for the replys guys

im in the uk and trying to find a replacement block in the uk is hard, only seen 1 in 6 months and missed out on it.

i have spoken to a company who say they can weld up the block, anyone had this done or have any thoughts on it?

search this. there is a thread on here about it.
Complete Renovation of 1997 Prostar 190 with Steyr 236 Diesel Engine

Bouyhead
08-26-2011, 03:12 PM
search this. there is a thread on here about it.
Complete Renovation of 1997 Prostar 190 with Steyr 236 Diesel Engine

That was a good thread! Here it is:http://mastercraft.com/teamtalk/showthread.php?t=33716&highlight=complete+renovation

jtsmooth
08-26-2011, 04:18 PM
Thats a great thread, wicked refurb.

Looks like I have sold my boat as it is, will be keeping an eye out for another.

To answer questons above, in uk its between 2000 and 2500 for repair/rebuilt etc.