Is there a difference between a mercruiser 4.3 and a 4.3 out of a car?

[Dsilvers112]

I was wondering if there was a diff between these 2. if so what is the difference. im wanting to know as far as internal engine parts such as main and rod bearings, pistons lifters etc.

 

[Dsilvers112]

Re: Is there a difference between a mercruiser 4.3 and a 4.3 out of a car?

anybody???

 

[Matt89GT]

Re: Is there a difference between a mercruiser 4.3 and a 4.3 out of a car?

cam is different, freeze plugs (core Plugs), head gaskets, all accessories: carb, distributor, water pump, thats all I can think of for now I'm sure someone else will chime in and cover what I might have forgot.

 

[Matt89GT]

Re: Is there a difference between a mercruiser 4.3 and a 4.3 out of a car?

alternator and starter I knew I would remember more

 

[Dsilvers112]

Re: Is there a difference between a mercruiser 4.3 and a 4.3 out of a car?

thanks man about to do a complete rebuild on mine which is actually out of a blazer. I want to get it right. Any ideas on where to get marine engine parts

 

[Eric 3.7LX Alpha 1]

Re: Is there a difference between a mercruiser 4.3 and a 4.3 out of a car?

Try here at Iboats.

if you don't find something specific you are looking for, let us know, there are countless sites that these guys have in their back pockets for certian things.

 

[Dsilvers112]

Re: Is there a difference between a mercruiser 4.3 and a 4.3 out of a car?

i couldnt find a complete rebuild kit on here. know anywhere i can find one

 

[Dsilvers112]

Re: Is there a difference between a mercruiser 4.3 and a 4.3 out of a car?

couldnt find a complete rebuild kit on here. know anywhere i can find one

 

[Eric 3.7LX Alpha 1]

Re: Is there a difference between a mercruiser 4.3 and a 4.3 out of a car?

I was wondering if there was a diff between these 2. if so what is the difference. im wanting to know as far as internal engine parts such as main and rod bearings, pistons lifters etc.

These parts that you refer to are the same in both. Bearings, crank, rods, pistons, you can get from Summitracing.com .

The '85-up 4.3L V-6 has the same bore and stroke as a 350 V-8 (4.000x3.480), and takes the same pistons, cam bearings, main bearings, valvetrain parts, timing cover, oil pump, and front dress.

The camshaft profile is important to get for high torque in the power range that is within max WOT for your engine. You don't want a cam that makes power from 3500 to 6500 rpm if WOT is 4500 for the engine. I am sure they have cams for marine application and if you tell them the RPM specs of the engine on the phone can recommend a cam for you. Or you can contact a camshaft company direct and speak with them for guidance. Will have to be sure the valve springs are matched for the camshaft.

They do have marine: dist, carbs, starters,
Hope it helps.