Which engines came with the 270 outdrive?

[FastForward]

I just picked up my first project boat the other day. A 76 Thompson 18' open bow. Well, I wasn't as throrough as I should have been when inspecting the engine. It was hot, I was tired, I took the guys word on a few things, in short, I'm an idiot. <br /><br />Anyway, upon closer inspection I'm inclined to believe the engine is toast. Time for a replacement. I'm guessing it's either a 351 Windsor or a 302 but could it be anthing else? How can I check? Also, the only difference between this engine and an auto engine is the alternator, exhaust manifolds, and distributor right? <br /> <br />Help me fix my mistake here Thanks in advance guys.

 

[Dunaruna]

Re: Which engines came with the 270 outdrive?

Post a pic. Most likely a 302w, very popular partner to the 270. Visually, you can't tell the difference between a 302 and a 351. Gotta get inside and measure.

 

[rbezdon]

Re: Which engines came with the 270 outdrive?

And the answer is no. I was told piston rings are different, freeze plugs starter, entire fuel system (pump, extra fuel lines, carb, filter also has water seperator, antisiphon system, spark arrester vs airfilter, cam cut plus the items you mention. I think the only items that are optional or disputable are the piston rings, every thing alse is mandatory and some safety are required by law and will result in voiding insurance claims if not per "code".

 

[Scaaty]

Re: Which engines came with the 270 outdrive?

Originally posted by FastForward:<br /> Also, the only difference between this engine and an auto engine is the alternator, exhaust manifolds, and distributor right? <br />

And a host of other things. Get a marine block....

 

[buckff211]

Re: Which engines came with the 270 outdrive?

My 86 Bayliner has a Chevy 350 with a 270 Volvo outdrive. At least I think it's a chevy, distributor in the back.

 

[Phantom17]

Re: Which engines came with the 270 outdrive?

Don't try to put that motor in the boat, it'll never go. Water passages, plug materials, cam, and a host of other internal, and all external parts are different. Marine engines are made to run at high rpm for long periods of time. Much like race car engines are different, boat motors are in a different area code too.

 

[Don S]

Re: Which engines came with the 270 outdrive?

What engine was in the boat before? If it was a 4 cylinder Volvo, then you will have the wrong gear ratio in the drive, along with the wrong exhaust pipe or Y on the transom shield. What about the bellhousing? Do you have one to connect a Ford to the transom shield?

 

[4.3sunbird]

Re: Which engines came with the 270 outdrive?

Originally posted by FastForward:<br /> the only difference between this engine and an auto engine is the alternator, exhaust manifolds, and distributor right? <br /> <br />Help me fix my mistake here Thanks in advance guys.

dont forget brass freeze plugs , marine water pump and marine gaskets <br /><br />btw a 351 has a taller deck surface which makes the heads farther apart than a 302 so the intake manifold is wider on a 351 <br /><br />Im no ford guy so youd have to check with some ford guy for measurments

 

[Haut Medoc]

Re: Which engines came with the 270 outdrive?

Post the serial #, and you will get the correct answer......If it is a Ford block then you can transfer everything as long as you have the right block whether you have a 302 or 351. You have to stick to the original c.i.d., or you will be spending $ because alot of parts are not interchangeable. Rapido marine has blocks for right around a grand. Look on e-bay......How do you know it's shot?.....JK