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cds02
05-22-2011, 08:41 PM
I was wanting too show everyone the pics i have so far and thanks to everyone thas as helped me with the build, also all the info this forum has. I have had lots of help from forum members especially TRBenj. Thanks to all for the help
My boat is a 89 Prostar 190 with a 351w. The boat had around 410 hours or so on it. I decided to rebuild because i wanted more power and my buddies and i barefoot a lot with this boat, so the extra power def. doesnt hurt.
-I am swapping to GT40p heads.
-DUI distributors w/ livewire wires.
-Edelbrock performer intake, still may swap for the RPM will decide this week
-Cam research cam
-OJ prop (going to try a couple out from them and keep the one most pleased with and send others back.
New 4160 carb from Skidim w/ metering block
-I bought all new marine gaskets, didnt try to skimp by on them.
-ARP head bolts
-I was recommended to replace timing chain so bought that as well

Please feel free to ask questions or give pointers as this is my first marine rebuild and im learning as i go and still have questions. Thanks

*Also sorry for the picture quality these pics where taken with my phone camera

cds02
05-22-2011, 08:46 PM
More pics, of the rebuild and the goodies to do it with.

Covi
05-22-2011, 08:56 PM
More pics, of the rebuild and the goodies to do it with.

Keep them coming please!

cds02
05-22-2011, 08:58 PM
Also i read somewhere on which plugs to run but want to make sure. I read autolite's 764.
Also when setting timing should i set it at 10btdc?
Has anyone else with a mastercraft around my year swapped stock to a performer RPM intake and able to re-use the stock flame arrestor? Remember i am using a new 4160 carb so i will be losing the thick plate because the new carbs have the vacuum port on the carb itself.

Skipper
05-22-2011, 09:03 PM
Great project but...................................

66823

socks with flip flops?

cds02
05-22-2011, 09:09 PM
Keep them coming please!

Will do as it comes along.

cds02
05-22-2011, 09:11 PM
Great project but...................................

66823

socks with flip flops?


HAHA, i knew i would catch he** over that one. I actually wasn't working on it today just stepped in the garage to take pics to start me a thread on here. I agree though it does look geeky.......LOL

TRBenj
05-23-2011, 12:10 PM
Gotta agree with Skipper!

Autolite 764's are the correct plugs, make sure you open up the gap per the DUI recommendation.

You can try setting the initial timing at 10, but my guess is that the engine will like 12-14 better. Its not a bad idea to verify final timing (above 3k RPM)... you should be right around 36 deg. Im assuming you have 24 deg of advance built in, which is what mine is set up for.

Kyle
05-23-2011, 01:05 PM
Socks or flops.

Not socks and flops.


What are your cam specs.

You will love the higher HP that engine will produce.

A word of advice.......replace main and rod bearings. Take the block out and do the bottom end. Don't cut corners and just do the top end. More than likely you will regret it.

Bottom ends that are broken in with a lower compression don't like to be changed to higher compression.

See link below.

Kyle
05-23-2011, 01:09 PM
This is what happens when you try and save time and money and leaving the bottom end alone. This happened after putting gt40p heads and cam in my boat after discharging low HP heads and cam.

It lasted less than 50 hours.


http://www.mastercraft.com/teamtalk/showthread.php?t=36324

1redTA
05-23-2011, 01:59 PM
definitely re-ring re-bearing the bottom end, a new oil pump, new lifters are a must with flat tappet cams

Dino Don
05-23-2011, 05:03 PM
It is a personal choice but I balanced mine years ago and haven't looked back. The way it runs, the low smooth idle--every engine is different yours maybe one that went through and was built with parts close to weight and balance but then again it may not and putting more HP on it causes the differences to magnify. Might be what happened to Kyle's. It's usually best money spent. my 2 cents----

cds02
05-23-2011, 09:11 PM
Yea i thought about doing the bottom end but decided against it cause of the condition and knew the owner so was confident it was well taken care of. Could be a mistake later in life but ill have this boat forever so i am going to see how everything goes and go from there.

TRBenj the paper they sent with it said 24 degrees at 3K.

Specs on the cam
490 Lift. 218 Intake, 222 Exhaust 110 LSA

All in all i hope everything goes as i hope it will. I didnt rebuild bottom end cause of practically low hours. I tried to go with the best stuff and didnt try to skimp on the stuff most would.

cds02
05-23-2011, 09:18 PM
Hey kyle how many hours did you have on the motor when you had it throw the bottom end?

1redTA
05-24-2011, 12:33 AM
The bottom end will let go some times from junk let loose when changing a cam or heads be real careful and inspect the cam bearings

Kyle
05-24-2011, 12:48 AM
Hey kyle how many hours did you have on the motor when you had it throw the bottom end?

I believe it was 445. Read the thread everyone asked all kinds of questions that I answered. I thought I was fine too.

cds02
05-26-2011, 08:49 PM
Been waiting on a few pieces i needed to get everything done, and will be posting up more pics for you guys as i go forward with the rebuild.

87MCProstar
06-05-2011, 02:03 PM
Cds02, how did you end up with that cam grind? after talking to cam research and talking with them about how engine was going to be used?

cds02
06-05-2011, 04:15 PM
Well basically i just told them what all mods i was doing, my intentions with the boat and he pretty much give me his biggest cam that he recommended. Do keep in mind that they are conservative with their cams. I am sure they would grind you a big as cam as you wanted though.

Kyle
06-05-2011, 07:49 PM
Please post cam specs.

cds02
06-05-2011, 08:43 PM
Please post cam specs.



Post #13.....

87MCProstar
06-06-2011, 07:38 AM
Well if its anything like Tim's SN, you boat is going to be a beast.

Kyle
06-06-2011, 10:57 AM
Post #13.....

I ment attach a copy of the cam card. It will have more info including a grind #.

cds02
06-06-2011, 08:21 PM
I looked in the box and didnt see a cam card. If there is one i havent found it yet. I may have just over looked it.

cds02
06-06-2011, 08:22 PM
Well if its anything like Tim's SN, you boat is going to be a beast.

I am hoping it will be. I will just have too wait and see.

cds02
06-17-2011, 08:46 PM
Sorry for no updates lately have been busy with the boat. So i got the motor almost all done just doing small stuff now. Got the heads on, cam in, the performer RPM intake did fit on my boat w/ OEM flame arrestor, DUI distributor, new carb. The engine is assembled and still cleaning on it. Still have to change oil, trans fluid and put on new OJ prop. Also got some new wheels and tires for boat and havent posted any pics cause boat is still dirty and would like to clean it before hand. Also can anyone tell me what the prop nut should torque at for a 89 190 boat please. For some reason i couldnt find on here.

Also have some freshly re-done teak pics to post as well.