Trojan Boat Forum

I do like the new marine power manifolds maybe thats the fix ?

Have you looked at the 6.0 engines ? the 350(5-7) is on the way out the new small blocks are great , But I have no idea how costly they would be .

Justmay sure what ever you buy you have service to back it up . The best engine in the world is worthless if there is no one to back it up or fix it

I did look at the 6.0, what a great engine design but with the extra cost and all that torque (I would have to redo shafts/struts). Still want to do more research on marine power. Think a trip to the Miami boat show in February might help.

Have plenty of service back up on all the manufactures here in the Detroit area.

When I did the repower I did put in a new transmission, it was the same model Borg Warner velvet drive 1:1, as well as a new shaft, cutlass bearing, strut and gauges. I just wanted to make sure everything in the driveline was new so I wouldn't have any problems down the road. Prowlerfish does have a valid point regarding the 6.0 engine. My 5.7 barely fits under the deck, however when I was on Crusaders site not too long ago I noticed that the 6.0 is 24.4" tall while the 5.7 is 28.8", so it would fit much better, plus I believe it's rated at 375HP compared to 330 for the 5.7. It hadn't been released when I repowered or I probably would have chosen it. One nice feature with the Crusader is I purchased the software and dongle to attach to the engine, so I can now read or reset any trouble codes. It also provides a wealth of information regarding the engine: How long it has been run at different rpm's, how many starts from any trouble codes, maximum temp, maximum rpm. I also take a snapshot of the engine (you can record while the engine runs) at the beginning and end of each year and then compare the two. I usually take a brief run with it attached and can measure fuel consumption and such. It has been very helpful. As for Marine Power engines, I only know of one boat, a 34' Silverton and as far as I know he never experienced any issues with it, though it did get sold a couple of years ago. I'm sure there is something similar to "read" what the engine is doing

ready123 wrote:

nims wrote:
"These marine engines include special marine pistons and rings, a special marine camshaft, marine gaskets, new intake and exhaust valves, new main bearings, new rod bearings, cam bearings, new valve lifters, rocker nuts and swivels, heavy duty double roller timing chains, cam sprocket, crank gear, high volume Melling oil pump, brass freeze plugs and all gaskets and seals required for installation."

Anybody on here know what ''Special marine pistons and rings'' are?

Thanks MattSC this is the info I’m looking for. My F-32 will have no problem with space for either engine, plenty of room. I just installed new Shafts, cutlass bearings and drip less shaft log’s 2 years ago, so I would consider my drive line in good working order. But with trying to keep the budget in control I think the 5.7s should work fine.

I have the velvet trans now, but also looking at ZF’s.

I do like your idea with the software, I also noticed that on the crusaders web site and also marine power has the same option.

I was wondering that myself (special marine pistons and rings) but I understood what ready123 was trying to tell me.

Jerry wrote:

ready123 wrote:

nims wrote:
"These marine engines include special marine pistons and rings, a special marine camshaft, marine gaskets, new intake and exhaust valves, new main bearings, new rod bearings, cam bearings, new valve lifters, rocker nuts and swivels, heavy duty double roller timing chains, cam sprocket, crank gear, high volume Melling oil pump, brass freeze plugs and all gaskets and seals required for installation."

Anybody on here know what ''Special marine pistons and rings'' are?

forged not cast pistons and rings with a diffrent name ''Special marine BS"

When I bought my F32 back in 06, at the end of the season I pulled both engines" For stringer work" The stbd engine had minor issues but was completely broken down and then sent off to a machine shop to be re built to crusaders specs. The cost was $1900 for the work to be done, plus other cost for some upgraded components. Three seasons later engine is still rock solid. I see your point on new engines. All new with the EFI techinolgy is hard to beat. Sound like it would be a great upgrade for your boat that you have owned for a long time. Maybe, it is a gift that would well be deserved for owning the boat that long . A good change !!! Shoot, if the extra money is not really a issue, I think the techinology, dependability and pride will be worth its weight in gold. As far as the PCM engines, I would have to stand hard behind CRUSADER. The are worth every penny. There are proven to be the better marine engine in a lot of peoples opinion. There rock solid cooling system with there inginition sytem is impecable. They have been around for a long time. How many hours are on yours?

before you upgrade to an engine with ecm/pcm that runs them you should check out some of the forums of boats that have them. and see if you want an ecm on your engines. I've got 454 mercs with 1000 hrs on them so re-power is coming and I've thought about it and I'm going to stay old school with the thunder bolt 4 system. just from a stand point i can afford to carry a spare system on my boat.