Like a challange? Here's mine: 2000 5.0 to 79 302 engine swap.

[texaslakesideman]

My current drive system is 2000 GM 5.0l with a Volvo Penta SX-M out drive. I found and have purchased a modified 79 302. This 302 now puts out 365 horses and can run up to 8000 rpm. The 302 has been pulled after 3 hours of use from a Mercruiser Gen I out drive. The bolts on parts are still on the tail of the engine from the Gen I. Now I need to figure out what parts I need to connect this engine into my existing 2000 SX-M. What will I need to replace on the replacement engine to match my current out drive? I have not picked up the replacement engine yet. I will do so in about 2 weeks. I am in Texas and have to go to Florida for the engine. Just want to be ready with the needed parts.

The replacement engine:

THIS IS A COMPLETELY REBUILD 302 FORD 350+ HP . BLOCK IS BORE .030 OVER, IT HAS BRAND NEW SPEED PRO SEALED POWER 10:1 COMPRESSION PISTONS. BRAND NEW MOLY CHROME PISTONS RINGS,NEW BEARINGS,EVERY THING ON THE BLOCK IS NEW , ETC. THE HEADS ARE THE HI-PERFORMANCE 210cc 2.02/1.60 -20 DEGREE VALVE ANGLE- 60cc COMBUSTION CHAMBER , WITH STUD ROLLER ALUMINUM ROCKER ARMS, STREET 3 ANGLE VALVE JOB , THEY ARE MACHINE TO USE CHEVY 2.02"/1.600"/ .100" VALVES, THE HEADS BY THEY SELF AT WORTH WELL OVER $1000.00 . THE INTAKE MANIFOLD IS AN EDELBROCK ALUMINUM PERFORMANCE RPM , THE CARBURATOR IS A BRAND NEW HOLLEY 600 VACUUM SECONDARY ELECTRIC CHOKE WITH A 1" SPACER. THE CAMSHAFT IS A ERSO RV 10H 280 DEGREE INT AND EXHAUST 448 DURATION, BRAND NEW HI-TORQUE STARTER,HI-VOLUME OIL PUMP,ETC. TO MANY THINGS TO LIST. THIS MOTOR COMES WITH FRONT MOTOR MOUNTS and REAR MOTOR MOUNTS INCLUDING THE BELL HOUSING.

 

[CaptainHook]

Re: Like a challange? Here's mine: 2000 5.0 to 79 302 engine swap.

Are you sure your sx is built to handle the hp and torque of the modified engine?

I know for a fact 8000 rpm from the new motor is way to much for the drive!!!!

 

[texaslakesideman]

Re: Like a challange? Here's mine: 2000 5.0 to 79 302 engine swap.

I don't intent to run above 5500 rpm.

 

[HT32BSX115]

Re: Like a challange? Here's mine: 2000 5.0 to 79 302 engine swap.

My current drive system is 2000 GM 5.0l with a Volvo Penta SX-M out drive. I found and have purchased a modified 79 302. This 302 now puts out 365 horses and can run up to 8000 rpm. The 302 has been pulled after 3 hours of use from a Mercruiser Gen I out drive. The bolts on parts are still on the tail of the engine from the Gen I. Now I need to figure out what parts I need to connect this engine into my existing 2000 SX-M.

Howdy,


Well, you're going to have to find a rear engine mount (flywheel housing/cover) and coupler for the Ford engine.

You'll also need to adapt the exhaust manifolds and risers to connect to the Volvo Penta Y-pipe unless you're going to use thru-hull exhaust.

You won't really be able to utilize an engine that turns 8000 RPM since no stock outdrive will survive very long at that RPM.....and the drive ratio prop pitch will be all wrong.....

If it has to turn high RPM to make any the above HP, it probably won't make a lot of HP at the "right" RPM for the drive since the camshaft is all wrong. (an engine that is cammed to make HIGH RPM hp might have a severe reversion problem too!!)

ERSO RV 10H 280 DEGREE INT AND EXHAUST 448 DURATION

You probably need to do a little reading on "Reversion" Here's some good info on it..... http://www.boatheaders.com/reversion.htm

Your easiest option might be to sell the Ford engine (or don't buy it) and get a good GM 350 in Volvo trim ......


A LOT of rebuilders build up engines that are advertised as making all sorts of HP at high RPM. That does nothing for a (stock) sterndrive powered boat since the max RPM you'll ever want to turn is around 4500-5500 RPM. You can turn higher but the props become VERY inefficient (unless you're using exotic "labbed", racing props that cost more than stock drive!!)


You also have a "wet" exhaust. If you use a cam with a LOT of duration, you will have water-exhaust reversion problems.....


Good luck!


Rick

 

[Bondo]

Re: Like a challange? Here's mine: 2000 5.0 to 79 302 engine swap.

Ayuh,.. That motor couldn't be built Farther than it is for Marine service...
It's a Hot Rod motor, NOT a boat motor...

It's in No way set up to run at any speed in a Boat...

 

[180shabah]

Re: Like a challange? Here's mine: 2000 5.0 to 79 302 engine swap.

Don't think you are going to be very happy after spending all this money.

 

[HT32BSX115]

Re: Like a challange? Here's mine: 2000 5.0 to 79 302 engine swap.

Ayuh,.. That motor couldn't be built Farther than it is for Marine service...
It's a Hot Rod motor, NOT a boat motor...

It's in No way set up to run at any speed in a Boat...

It might be ok in a flat bottom Jet Boat running dry-stacks though!

 

[CaptainHook]

Re: Like a challange? Here's mine: 2000 5.0 to 79 302 engine swap.

Reading the engine build specs makes me agree with the other posts.

First that cam and intake will not make power to 8000 rpm. That is a hydraulic set up. Lifters will bleed off and float valves and you will have traumatic failure!!!

The head work sounds good. But the rest....hmmmmmm.......

You will need to let that motor breathe so exhust through the drive will not be sufficient. Thru hull will be needed. I would not worry about water reversion with that cam but you may want a different grind that makes power off idle through 5000 rpm.

Also maybe just a performer not performer rpm and get rid of the plenum spacer.

This is just all wrong for marine performance!!!

 

[haulnazz15]

Re: Like a challange? Here's mine: 2000 5.0 to 79 302 engine swap.

I think it might be okay if he just swapped out the cam, the rest is fine. The other issue is that with the 60cc heads creating 10.5:1 compression, you'll have to use at least 91 octane or better all the time or you will detonate. Squeezing 350HP out of the 302 is pretty much only going to be at high RPM's, so that number is a bit misleading. If he went to something like the 256-grind, it'd put the power back to the lower-rpm band and top off at about 5000rpms, which is perfect.

As far as the setup issues, it might be a pain to find a Volvo transom bracket that will work with the 302 since they aren't exactly the most popular engine option (Volvo/Ford). It is unlikely the starter, distributor, or the carburetor are marine units, so plan on spending $600 or more just to swap those items. I think you'd be better off finding a different engine option.

 

[texaslakesideman]

Re: Like a challange? Here's mine: 2000 5.0 to 79 302 engine swap.

As previously stated, I never intended to run higher than 5500 rpm. In fact, I am adding a limiter for that assurance. As for whether it?s for a boat engine or not, I can?t say, but it was built for a similar boat to mine, and has been proofed in that boat. As for all that money, $820.00 is not so bad, huh? I am hearing a lot of assumptions and I need data. For instance, I really do know the differences between marine and auto bolt-ons. This engine is a temp engine only for me. I want to pull my current 5.0, tear it down and discover my problem. If it is an easy fix, it will be repaired and put back in the boat. I live on a lake and regardless of anything else, I have guest that come here a weekend at a time. I'm a Mechanical Engineer but working on my own boat is new. I am retired and have the time. If the engine goes, with only what I am intending to use it for, I would be very surprised, but I wouldn't be hurt in the pocket too bad. As for the hp, I am well aware that I will never see all that hp at the rpms I am limiting to. As for the engine itself, I only know what the seller has stated. I have my reservations as well. I am looking to install an all new drive system when I have finished my research. My question was not regarding my choice of engines, rather how to make a connection. I'm sorry, but I do wish to stick to the subject here.

HT32BSX115 seems to be the only one that gets it and I want to thank you for the info. I am exploring other options for a permanent engine and only wish to use this one for 2-3 weeks at a time. Once the 5.0 is repaired, it will be re-installed while I seek my permanent and proper engine. Now unless you of you have and $800.00 good engine to part with, I think I?ll stick to my current plan. Now is there any more info you folks can provide regarding getting this engine installed and contribute to that end, please feel free to contribute here.

 

[HVAC Cruiser]

Re: Like a challange? Here's mine: 2000 5.0 to 79 302 engine swap.

This 302 now puts out 365 horses and can run up to 8000 rpm.

The replacement engine:

THE INTAKE MANIFOLD IS AN EDELBROCK ALUMINUM PERFORMANCE RPM , THE CARBURATOR IS A BRAND NEW HOLLEY 600 VACUUM SECONDARY ELECTRIC CHOKE WITH A 1" SPACER. THE CAMSHAFT IS A ERSO RV 10H 280 DEGREE INT AND EXHAUST 448 DURATION, BRAND NEW HI-TORQUE STARTER,HI-VOLUME OIL PUMP,ETC. TO MANY THINGS TO LIST. THIS MOTOR COMES WITH FRONT MOTOR MOUNTS and REAR MOTOR MOUNTS INCLUDING THE BELL HOUSING.

Without saying the guy selling / sold it to you is full of baloney, There are a lot of things wrong here, the cam I assume is a Erson. The RV 10H lift and duration and range is 1,200-4200 rpm Duration is IN 208? @.050 IN .448" lift both intake and exhaust with a 111? lobe center with a 1.6 ratio rocker.
in reality your RPM will be to low and affect the top speed of the boat unless you start changing gears and props on the drive

If he did spin it up to 8000 rpm which is very unlikely ,you would have a real big paperweight right now


Aside from what everyone else has stated above now you have to change the carb, fuel pump, core plugs,starter, distributor, & alternator just off the top of my head . seeing you are going from chevy to ford I see lots and lots of money to spend needlessly. In my opinion stick with GM, at least then you could use parts from your old engine


EDIT: We posted around the same time, I didn't see your latest post till after I posted. You originally left out the part about it being build for a boat in your original post, the description comes off like a hot rod engine nowhere does it mention marine. but with that said I still stand by what I said, the #'s for the cam in the description are wrong, as a result the rpm you were given has to be wrong. I personally would not trust the engine, my own opinion.

 

[Bondo]

Re: Like a challange? Here's mine: 2000 5.0 to 79 302 engine swap.

Now unless you of you have and $800.00 good engine to part with, I think I?ll stick to my current plan. Now is there any more info you folks can provide regarding getting this engine installed and contribute to that end,

Ayuh,... Sure,.... Here's a Plan that'll give you the Final repair without dealing with an inappropriate motor in the 1st place...

Go buy a Brand New GM Goodwrench 350 pickup truck replacement crate motor,+ install it in place of your junk 305...
It'll run ya Less than 2 Grand....

If you still wish to pursue this idiotic plan of dropping in a Ford, Hot Rod motor,...
You'll need the Ford/ Volvo flywheel cover,...
That shouldn't be more than a Few Hundred Bucks... If you can find 1 Used...

Then you'll need the water cooled exhaust manifolds,....
Those shouldn't be more than a Grand or so... Slightly less, Used...

The missing bracketry should only run ya another Grand or so.... Used of course...

I'm a Mechanical Engineer

 

[HT32BSX115]

Re: Like a challange? Here's mine: 2000 5.0 to 79 302 engine swap.

Now unless you of you have and $800.00 good engine to part with, I think I?ll stick to my current plan.

You need to understand that your current plan will cost you considerably more than the $800 + shipping unless the person selling you the engine is also providing the flywheel housing, intake & exhaust manifolds, carburetor, risers, coupler, just to name a few parts you'll need.......

Port Arthur, TX to Pensacola, FL is about an 8hr round trip of approx 850 miles. In a pickup (to safely carry that greasy engine) you're going to get optimistically about 18 mpg..... That'll be about $140 at todays gas prices.......(assuming you don't eat on the way over and back.....)

My "better plan" is drop on over to a wrecking yard and get a long block 350 out of a pickup and install that. At least you should be able to use your bell housing, and exhaust manifolds and other stuff.

There's a lot of people here that have done that and the details are not all that hard to overcome......

Temporarily switching from a Volvo GM setup to a Volvo Ford set up is simply not practical or economical in anyones book......


EDIT:
I just noticed that you're in Bowie, Tx. That's nearly 770 miles one way to Pensacola. I don't know where you're going in FL for that engine.......but Pensacola is about as close to the NW tip of FL as you can get

So more than 1500 miles is more like $250 just for gas....... and 24hrs of driving. If you don't eat and you "marathon" drive it,

Your $800 engine is now over $1000!

I'm an Electrical Engineer and I'm not getting this..... Bruce......help me out here!

 

[fishinpa]

Re: Like a challange? Here's mine: 2000 5.0 to 79 302 engine swap.

You said your buying the motor for $850 or so? Do you know you can get a 5.7 liter fully rebuilt with a warranty from RapidoMarine for around $1200 - $1300 and no core charge. Everything (distrib, bellhousing, flywheel, starter, carb. manifolds, etc.) from your existing 5.0 will swap directly to the 5.7 and drop right into place. You get a greate engine, 60 or so more Horse Power and none of the conversion costs. Seems kind of like a no brainer, but thats just me.

Yes this sounds more like a plan !
cut out the multiple swaps and all the extra $$$$$$
do it once and your set .....

fish

 

[haulnazz15]

Re: Like a challange? Here's mine: 2000 5.0 to 79 302 engine swap.

Like I mentioned, you will be spending $600+ just for engine conversion parts alone, not to mention the different transom bracket and exhaust manifolds/risers. You can't get out of this deal for less than $850 for the engine, plus $200+ for the shipping/gas whatever. So you'll over $1K just getting the engine, $600+ for swapping to marine spark arrested components, another $1K for exhaust components, and finally the transom hardware. You will be spending $3K+ to make a Ford engine work with your Volvo equipment. It would be slightly easier if you had a Merc outdrive but still not economical or simple in the slightest.

Getting the 350 long block and swapping over all of your stuff from the 305 would be the smartest/cheapest route.

 

[Bondo]

Re: Like a challange? Here's mine: 2000 5.0 to 79 302 engine swap.

It would be slightly easier if you had a Merc outdrive but still not economical or simple in the slightest.

Ayuh,... Merc. abandoned the Fords, nearly 20 Years before Volvo did...
It would be even Worse...

 

[texaslakesideman]

Re: Like a challange? Here's mine: 2000 5.0 to 79 302 engine swap.

You know, I joined this site because I thought you guys would be more help. I thought you might actually know something. Maybe it's me. Let me try again. I am buying a motor set up for marine use. It comes with marine carb, starter, alternator, distributor, coil vee belt, marine water cooled heads ECT...ECT....ECT. It comes with the ford to mercruiser conections already bolted on; including fly wheel, housing, motor mounts ect. It is ready to drop in, connect and run. The only exception was possibly the correct flywheel, bell housing and what ever it takes to make the splined connection and to secure the different bell housing and flywheel.... to the drive. Why do we keep going back to spend money on more bolt on stuff? I already knew and did not ask that I need to add a raw water pump and bracket. Like I said, I'm not so ignorant. I've been building engines since the age of 14. Began learning at 12. I am 52. And a college educated and many years experience engineer. I was hoping I could narrow down which specific flywheel, which specific bell housing (flywheel housing/cover) and coupler for Volvo Penta. Some of you guys like to try to impress everyone else and me with you options, and comments on what the better alternative is including spending large amounts of money for parts I already have on the engine. Only a couple of you are more than hot air. I will include a picture for those who draw with crayons. I really don?t care for your opinions about how you think I need to spend my money. And really, so much for 2, 3 or 4 parts. I don?t know where you get your info, you cant tell me the specific part and have spent too much time stroking each others egos to shop around on the net and find the 300 and 400 dollar parts for 50 bucks? I have. I just thought you knew something, evidently so did you! Do you have a part number, and year or manufacture or the name of a manufacturer? Do any of you know which Flywheel cover? Do any know more than generalities? I say I'm new to all this but I was speaking conservatively. I?d only been at this longer than some of you can count. If this is just a BS forum, I'm disappointed and ready to leave. Please stop tying to impress each other, at least for the duration of this thread. Do you have a better engine for the same money? Not for 2 large! DUH! Maybe you can?t read so could not understand what I asked. So one more time, connection, motor to stern drive and inner plate. Only those things between those two points. As for going to Florida: I'm no fool, I am taking full advantage taking a lot of SCUBA gear to take advantage of some R&R. Now, what did the cost of my gas to pick it up have to do with connecting and engine to the drive? Anyone? I think some of you love the sound of you own voice. Gee Wizz! Now I will try to figure out how to get my pictures up here a soon as possible. For those who have been helpfull, i thank you and wonder, how much of this do you have to put up with?

 

[Bondo]

Re: Like a challange? Here's mine: 2000 5.0 to 79 302 engine swap.

Like I said, I'm not so ignorant.

Ayuh,... You're last post just Proved that to be False....

You need to further your lacking Education,...
Take a Social Interaction course...

 

[texaslakesideman]

Re: Like a challange? Here's mine: 2000 5.0 to 79 302 engine swap.

So Bond-0, If you can dazzle 'em with your brilliance, baffle 'em with your BS. And if I dont like it you gonna take your ball and go home.....but only after offering some sausy tounge? I rest my case.

 

[cooter2506]

Re: Like a challange? Here's mine: 2000 5.0 to 79 302 engine swap.

You are not the first person to come on here and want to do something with an extreme motor and make it work. These guys believe it or not are trying to help. They come from YEARS AND YEARS of knowlege of what can and cant be done to these engines resonably.