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| 2000 4.3 v6 from Chevy truck https://www.smwebhead.com/phpBB3/viewtopic.php?f=2&t=10093 |
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| Author: | Jay127 [ Tue Aug 14, 2012 8:02 am ] |
| Post subject: | 2000 4.3 v6 from Chevy truck |
Caln the fuel injection from this me put on a 4.3 marine. Can this motor have the marine components put on it. I didn't know if it was to computer controlled for marine applications |
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| Author: | ric [ Tue Aug 14, 2012 8:14 am ] |
| Post subject: | Re: 2000 4.3 v6 from Chevy truck |
Jay127 wrote: Caln the fuel injection from this me put on a 4.3 marine. Can this motor have the marine components put on it. I didn't know if it was to computer controlled for marine applications Yes you can use the car engine in a boat, it's the same engine just different things bolted around it. The ECU/harness is totally different from the GM MEFI4 and the gains from EFI to a good carb in a boat is questionable (not the 2bbl VP/MC sticks on). Fuel injection is great for the dynamics of stop and go traffic but in the marine world a carb (and carbs in general) when tuned right are just as efficient and usually work better at higher RPMs. Could you adapt a automotive ECU to work in a boat? Yes you can but you'll need the ECU wiring diagram and know what you're doing. The easiest route is to just convert it to a carburetor (pick up a edelbrock intake and holley marine carb). |
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| Author: | Jay127 [ Tue Aug 14, 2012 10:52 am ] |
| Post subject: | Re: 2000 4.3 v6 from Chevy truck |
I was thinking of building it for a future drop in. Now I am correct that all the 4.3 bolt patterns are the same correct. I have the omc cobra out drive. |
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| Author: | ric [ Tue Aug 14, 2012 11:04 am ] |
| Post subject: | Re: 2000 4.3 v6 from Chevy truck |
Jay127 wrote: I was thinking of building it for a future drop in. Now I am correct that all the 4.3 bolt patterns are the same correct. I have the omc cobra out drive. Old/new 4.3 same block. They changed the intake manifolds on the vortec heads but the exhaust side is still the same bolt pattern. |
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| Author: | LouC [ Tue Aug 14, 2012 11:12 am ] |
| Post subject: | Re: 2000 4.3 v6 from Chevy truck |
I agree with ric, there are marine EFI systems that can be installed on engines that did not have them in the first place, but compared to using a simple carb and mechanical fuel pump, that is a lot of expense for not much payback. Plus, if something goes wrong with a carbed boat motor it is far simpler to repair. Bolt on a new carb set it up and go. No ECUs, IAC, TPS, etc. Keep in mind, if you don't use a points distributor (like the OE Prestolite used in the OMCs) the OMC Electronic Shift Assist (ESA) will not work, unless you wire it to work like a Mercruiser which was set up different from OMC. You can use the Delco EST but it has to be wired differently than the OE set up on the Cobra. I still used the points distributor because it works fine and is easy to maintain. |
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| Author: | ric [ Tue Aug 14, 2012 11:28 am ] |
| Post subject: | Re: 2000 4.3 v6 from Chevy truck |
When it comes to boats the acronym KISS is the most important thing to live by. Keep it simple stupid. |
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| Author: | Jay127 [ Thu Aug 16, 2012 5:24 am ] |
| Post subject: | Re: 2000 4.3 v6 from Chevy truck |
So if I'm going to build a new motor would I be better off using the 2000 4.3 or the 95. Also isn't the 2000 aluminum. Does that matter |
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