lightweight engine
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Junior User
Joined: Apr 2006
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From: Pottstown, PA
lightweight engine
I need a lightweight engine that can be pulled out and swapped fairly easily (ie. minimal electronics) Does anyone have any suggestions(vehicle model/year). It's going in a boat, so thats why the weight is an issue. I want as much power as i can get without alot of weight.
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Joined: Nov 2002
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From: Littleton, CO
What kind of boat? Are you planning on building it up or do you want just out of the old vehicle power? As far as electronics, all you need is spark for a good old fashion carbed motor to run.
--Mike
--Mike
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Joined: Oct 2003
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From: Quesnel, BC, Canada
i joined a boat forum, I used to think you could just drop any ol engine in a boat...I was wrong. Theres a bunch of stuff needed to be done to 'maranize' it to make it stronger I guess, I dont understand why tho, the prop can 'spin out' easier in the water than big tires can on the road IMO....but they are the ones who have been there done that and I'll take their word. I cant even remember the forum name either.
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From: San Antonio, Texas
From my experience there is only a few things needed to marinize an engine like different water necks, exhaust manifolds, and so on.
All different engines have been used for marine motors.
The boats that we own or have owned, a 90 bayliner with 2.3L ford I4, had decent power, could pull a knee boarder and run all day on less than a tank.
A 71 formula, under construction right now has 455 olds rocket motor.
People we know had a master craft with a ford 302, also they came with 351ws.
460s have also been used.
Several of GMs have been used.
Me and some fellas droped in a 327 chevy into a drag boat and used a marine headers and water neck. That engine came out of a nova.
I'm just saying alot of marine guys like to think it takes a spacifice type of motor to run a boat but with inmagination, you can do anything.
My uncle wants to put a jet ski power train into a 14' jon boat.
All different engines have been used for marine motors.
The boats that we own or have owned, a 90 bayliner with 2.3L ford I4, had decent power, could pull a knee boarder and run all day on less than a tank.
A 71 formula, under construction right now has 455 olds rocket motor.
People we know had a master craft with a ford 302, also they came with 351ws.
460s have also been used.
Several of GMs have been used.
Me and some fellas droped in a 327 chevy into a drag boat and used a marine headers and water neck. That engine came out of a nova.
I'm just saying alot of marine guys like to think it takes a spacifice type of motor to run a boat but with inmagination, you can do anything.
My uncle wants to put a jet ski power train into a 14' jon boat.
Last edited by BroncoRoadKill; Jun 11, 2006 at 01:50 PM.
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From: Quesnel, BC, Canada
well I didnt think there could be all that much more to make it maranized...I was also going to say that the 2.3L would be the best bang for buck option. They made about 100hp and, from person experience, are very strong engines....one week without oil, 3 days no coolant, 35 degree celcius heat; the pistons started the rub hard on the cylinder walls....so hard it bogged the engine down almost to a stalling point (drove it for an hour like this). I put some thick oil in and some coolant and she ran strong without even a tick.
-i was trying to kill it so i had an excuse to put a 5.0L in the 'stang...I gained an appreciation for the 2.3L that week. 1987 mustang lx 5 speed 200,000 miles
-i was trying to kill it so i had an excuse to put a 5.0L in the 'stang...I gained an appreciation for the 2.3L that week. 1987 mustang lx 5 speed 200,000 miles
Post Fiend
Joined: Jan 2003
Posts: 8,600
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From: Iowa
There were some marine FE 427's. There are aluminum blocks, heads, and intakes for the Ford 427 to make it nice and light, and the marine stuff is around. That would make one heck of a boat motor... and cost a lot too!
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Fleet Mechanic
Joined: Mar 2005
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From: St Louis
I thought the post-72 marine engines had less smog controls and more anti-spark controls. The 4.3l chevy engine in the 92 boat of my parents says volvo all over it but has a rochester 2-barrel carb on the top of it.
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From: Las Vegas
Carb, starter, feeze plugs, fuel pump, cam (for powerband) maybe a few other marine specific items.............mostly designed to minimize any fuel leakage (j-tube carbs, fuel pumps) minimize sparks. and to minimize corrosion......most marine motors are enclosed, fumes are deadly.
Blocks, internal parts (including cams which are sometimes just straight truck grinds) are off the shelf GM/Ford/Chrysler parts.
One of the HUGE reasons GM owns the pleasure boat market is the cheap availability of 4 bolt blocks.......
In the lower HP motors of yore.........260ishHP small blocks were both 2 bolt 351 fords and 350 GM's.............even the 330ishHP big blocks were 2 bolt GM 454's and 460's.
After those levels, it was mostly GM 4 bolts........for real or perceived durability.
Blocks, internal parts (including cams which are sometimes just straight truck grinds) are off the shelf GM/Ford/Chrysler parts.
One of the HUGE reasons GM owns the pleasure boat market is the cheap availability of 4 bolt blocks.......
In the lower HP motors of yore.........260ishHP small blocks were both 2 bolt 351 fords and 350 GM's.............even the 330ishHP big blocks were 2 bolt GM 454's and 460's.
After those levels, it was mostly GM 4 bolts........for real or perceived durability.
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