Any help?

[Kyle K]

Hey there everyone my name is Kyle I am new to this I just recently purchased a 1972 Sea Ray SRV 180 equipped with the 153 GM L4 motor at the end of last summer and the motor was locked up so I pulled the spark plugs out poured a little bit of oil into the cylinders and let it sit hopefully it would unfreeze it but I haven't checked it. My question is I am in the process of doing a V8 swap in my 2003 S10 with the 2.2 and yes i do know the boat is a 2.5 was wondering if I could swap the motors out and change over the intake manifold and exhaust components or would it be easier to buy a rebuild kits or if anyone knows of good prices for a reman motor I only paid $600 for the boat but the trailer itself was worth 600 with the new tires and Lighting on it I will post some pictures shortly

 

[Pirate Lady]

Kyle, since nobody, stepped up yet, i will try, first off, and dont get pissy, your lack of punctuation makes it hard to know what you are asking. are you putting a motor in the S10? or an S10 motor into the boat? clarify, and you may get a response.

 

[Soulshine]

There is one period in there.

 

[Wanderer 290]

There is one period in there.

Are you new to writing or new to boating?
And actually there are 3 periods in your original post...

 

[Soulshine]

Neither.

There is one period, two decimal points and one dollar sign.

It’s also not my original post.

 

[Pirate Lady]

Ha ha ha this is funny and Kyle seems to have disappeared. I wonder if he ever got the truck running or was it the boat? So confused.

 

[duckhead69]

think you all ascared him away LOL

 

[DaveKamp]

Kinda looks that way...

But if he still checks... Kyle-

The GM 2.2 is in no way interchangable with the 153ci "Iron Duke" four... it won't even bolt in.

Do NOT try to swap it with an automotive engine- while they look similar, and might 'bolt in', there's more differences than similarities... like... explosion-proof electrics, corrosion-resistant frost plugs, gaskets, etc., totally different cooling system componentry, and the camshaft. Marine engines are designed to run with submerged exhaust... an 'automotive' camshaft's overlap will prevent it from running well in a marine application. Many automotive engines have cast iron crankshafts, where a marine-application would run either forged, or cast alloy steel. A few good bounces off waves at 3500rpm and you'd find out why...

If you still have this project, a MerCruiser 165 (250 inline six) will share bellhousing, but need a different coupler and driveshaft yoke, and a drive gear ratio change (from 2.01 or 1.98 to 1.65:1), or get bold and put in a 350ci MerCruiser 260, use aftermarket center-rise manifolds, cap off the exhaust tubes and send it out through-transom, switch your 120/140 drive for a MCM228 or MCM260 (1.5:1) drive and a 23 pitch prop... and space your engine cover about 5.5" forward.

The SRV-180 with the inline six (MCM165) STOCK will put you somewhere around 46mph depending on loading... and you'll probably get BETTER fuel economy as your cruising speed will be around 36mph at same fuel flow as your 120 would pulling at 25mph. (the 120hp drive pushed most 17-18'ers at 32mph...).

With a 350 V8, you'll nix the side seats, and with a 1.5:1 gear, swing a 23p 1-blade, and you'll get tired of wind-buffetting of the low-mid 60mph range. If you choose this, make sure you have an engine-kill lanyard, give the drive gimbal and steering arm a good service, and make certain your steering gear has no slack... sharpen the transom trailing edge, and file the nicks out of the skeg, as it'll get squirrly if you don't... and add trim tabs, run a cleaver prop, minimal rake, as it'll wanna become an aircraft around 54 if you don't.

 

[Nater Potater]

Since it says he hasn't been seen since the day he posted, he hasn't even had the chance of seeing all the snarky remarks, so that couldn't have scared him away. I'm very curious as to where this project went.