Author Topic: CV-16ssV8 home (Read 22616 times)

OleRed · « **Reply #40 on:** October 13, 2010, 09:49:11 AM »

Quote from: Burnin Daylight on October 13, 2010, 09:26:26 AM

OLERED WHAT ARE YOU THINKING??? Thats my motor.

Ooops .. I forgot Barb ... , you Know my memory ain't that good, Please don't to beat me up, those pole climbing boots would hurt a lot worse than spurs .. I'm Sorry .... what was I thinking.

Hotwired · « **Reply #41 on:** October 13, 2010, 11:39:12 AM »

LOL .. don't worry Barb .... I have a garage full of motors Red can play with! I should load the lot of them in to the truck and head to Oklahoma!

There are always a lot of "donor" boats around out here in AZ due to the toll the sun takes on things. I will keep an eye out for a Gen II engine and drive. Preferably a 260 package. Might start collecting them too! I do have a late 70's vintage Chevy 350 4 bolt main truck engine I was going to build for a boat. That usable as a short block maybe a good place to start? Also, are there drive differances between the 302 drive and the 305 drive aside from the bell housing? Would a 888 out drive be interchangeable with a 898 or a 260 (ford vs Chevy)?

dorelse · « **Reply #42 on:** October 13, 2010, 12:31:21 PM »

Quote from: Hotwired on October 13, 2010, 11:39:12 AM

LOL .. don't worry Barb .... I have a garage full of motors Red can play with! I should load the lot of them in to the truck and head to Oklahoma!

I have contemplated doing the same thing with the CVZ18 & the 898 motor...

OleRed · « **Reply #43 on:** October 13, 2010, 01:01:24 PM »

Quote from: Hotwired on October 13, 2010, 11:39:12 AM

That usable as a short block maybe a good place to start? Also, are there drive differances between the 302 drive and the 305 drive aside from the bell housing? Would a 888 out drive be interchangeable with a 898 or a 260 (ford vs Chevy)?

There's no difference in the Mercruiser drive's, as far as the Chevy and Ford application, just the bell housing and the engine side mounts, the ratio is important though, you should run a 1.50 ratio, or a 1.47 but I ran a 1.84 on my boat to begin with, just used a 15 1/8 diameter prop, 22 pitch and it still ran in the 60's with the other motor. That early model block you have would be Ideal to start with, but the late model Vortec heads flow the best, good torque with out a lot of machine work, and they will bolt right on it with the vortec head bolts. the carborated intake manifold is getting easy to find now for those heads, and stainless steel valves are good insurance. Another edge for speed is those GLM aluminum high performance exhaust manifolds from Dennis Moore in California, they flow good, and take 100 pounds weight off the motor, they have individual runners like headers on a street rod. you can loose 160 pounds off the motor just by paying attention to the exhaust manifolds, starter, use the little High Torque, it's 9 pounds lighter than the original, aluminum water pump is 7 pounds lighter, intake manifold about 25 pounds lighter, and the fly wheel can be changed out for one 13 pounds lighter, all that is kinda like kicking your buddy out of the boat when ya want to Race. The camshaft alone, Chevy's "Hot Cam" vrs a stock cam can add about 80 hp to a fresh motor, believe it or not.

Hotwired · « **Reply #44 on:** October 13, 2010, 02:40:10 PM »

Holly Molly! I am going to have to save all this info! The wt advantage alone is huge I can see.

CVX Fever · « **Reply #45 on:** October 13, 2010, 04:25:47 PM »

Hey Jeff any of this aluminum parts talk sound familiar?

Good stuff Red! Jeff & I have often discussed the merits of getting rid of cast iron engine pieces and replacing with aluminum to shave weight increase & performance on our CVX18s.

This is great discussion because the original drive & motor is coming out of my '79 CVX18 next fall and I'll be looking for a donor boat w/5.7 Alpha Gen II, although I'll go w/5.7 Gen I if I find a deal too good to pass up. I've looked into it and it seems that is the easiest & cheapest way to go. Especially if you consider your time is worth something. Then you've got EVERYTHING and you know it will all go back together without issues.

Red - How did you go about getting the newer drive/motor for your Scimitar?

OleRed · « **Reply #46 on:** October 13, 2010, 07:03:23 PM »

I bought a 1996 Celebrity with a rotton floor and a 4.3 that was freeze cracked, and the Gen II drive ... really cheap
thats how I got my drive, it was a 1,84 ratio, I run it that way for a year or so, but then I had it built last year with 1.47 gears. The Alpha One Gen I has the the same gears, but I think the only difference in the Gen II is the larger upper gear case and a taller front bearing, I liked the idea it holding more lube, and a remote resivoir.

CVX Fever · « **Reply #47 on:** October 14, 2010, 11:36:26 AM »

Red - The Gen 2 is rated to handle more HP than the Gen 1. 300 @ the prop vs the input shaft. I've also been told the design of the raw water impeller was improved so they last longer. Although my dad is still runnning the original in his '86 Glastron w/Gen 1.

Good score on the Celebrity. I'm sure you got that for a lot less than trying to buy a used drive system on ebay or craigslist. Is your motor the original from your Scimitar?

Hotwired - FYI If you want a Gen 2 drive for your CV16 your gonna have to be looking for a '92 or newer boat.

OleRed · « **Reply #48 on:** October 14, 2010, 01:04:21 PM »

Quote from: CVX Fever on October 14, 2010, 11:36:26 AM

Red - The Gen 2 is rated to handle more HP than the Gen 1. 300 @ the prop vs the input shaft. Is your motor the original from your Scimitar?

hmmm .. not quite the original motor, this one is a 2000 model Chevy vortec 5.7 4 bolt, I carborated it with the Edlebrock performer carb and intake, bored it .060 decked the block, flat pistons, moly rings, custom roller 292 split .505/.510 cam, vortec heads milled .030 stainless steel Manley valves, Z springs and retainers, 1.5 rockers, Cloyes roller timing set, Melling HV oil pump, 4.3 flywheel, aluminum hv waterpump, GLM high performance aluminum exhaust manifolds, thru-hills, Thunderbolt ignition, gear reduction starter. According to the machine shop, the motor is develpoing 425 /435 hp, the boat runs low 70's w/2 or 3 passengers. here's my favorite Video ...

http://www.youtube.com/watch?v=I-kK0gSKHlo&feature=player_embedded

Hotwired · « **Reply #49 on:** October 14, 2010, 01:15:26 PM »

Quote from: CVX Fever on October 14, 2010, 11:36:26 AM

Hotwired - FYI If you want a Gen 2 drive for your CV16 your gonna have to be looking for a '92 or newer boat.

Thanks .. I was wondering what year the Mercruisers changed.

CVX Fever · « **Reply #50 on:** October 14, 2010, 02:20:27 PM »

Red - Where did you source the motor? I had seen pictures of it before so I was pretty sure it wasn't the original. My experience is that used fully dressed marine engines are hard to come by and then when you do find them they want big bucks!!! Which is why I keep going back to just buy the whole boat.

OleRed · « **Reply #51 on:** October 14, 2010, 03:30:51 PM »

Quote from: CVX Fever on October 14, 2010, 02:20:27 PM

Red - Where did you source the motor?

My friend and I bought two 1 ton truck, pick-ups, from a state vehicle auction, the trucks were rough, but both drove home, I got the motors and my buddy parted out the trucks, identical motors, thick blocks with 4 bolt mains, same block as marine applications.
Buying a whole boat is the way to go alright, but I have been parting out I/O boats for several years, was a licensed used boat dealer here in Oklahoma for 7 years. until last week-end, I had more used Mercruiser motor parts, hoses, and mr drive stuff than you could shake a stick at, but since I don't use the older stuff anymore, I had a real Garage Sale, sold two fellows a pick-up load each, kinda funny, I sold all that stuff, and ya can't tell it by looking in my garage .. it's Still a Mess.

Burnin Daylight · « **Reply #52 on:** October 14, 2010, 05:50:27 PM »

This is making me think that I should join Glastron Boat Weight Watchers and attend weekly meetings.

OleRed · « **Reply #53 on:** October 14, 2010, 10:52:00 PM »

Thats a Good Idea Barb, develop a 12 step program for it and have weekly meeting at my shop ... starting with Your boat ... Monday

CVX Fever · « **Reply #54 on:** October 15, 2010, 12:39:27 PM »

Quote

Buying a whole boat is the way to go alright, but I have been parting out I/O boats for several years, was a licensed used boat dealer here in Oklahoma for 7 years.

Red I didn't realize you were a boat dealer at one time. No wonder you know your way around them so well. Thanks for confiming what I kind of suspected about buying a whole boat versus all the pieces. Mine will be stripped right down to the bare hull, motor & drive wise. I'll need everything.

Hotwired · « **Reply #55 on:** October 15, 2010, 12:46:15 PM »

Quote from: Burnin Daylight on October 14, 2010, 05:50:27 PM

This is making me think that I should join Glastron Boat Weight Watchers and attend weekly meetings.

My Name is Hotwired. I own 4 Glastrons. Only 2 run. I keep them under tarps and polish them at night. I am a GLASTRON-O-HOLIC.

Jerry · « **Reply #56 on:** October 15, 2010, 03:14:43 PM »

I don't have a problem

I don't have a problem

I don't have a problem

TV · « **Reply #57 on:** October 15, 2010, 06:02:47 PM »

My name is Tom and I don't know how many boats is too many but I know 14 is not enough......I don't think I have a problem it's the rest of my family I'm worried about.

Rosscoe · « **Reply #58 on:** October 16, 2010, 10:02:26 AM »

Red
Got any exhaust manifolds laying around still?

I know some mercruisers will bolt up but the plumbing is different.
Since my stock ones are garbage, I need to decide what direction to go and aluminum sounds like great option when you start talking weight. Are they still jacketed/water cooled? Who makes them?
Over the next couple of years (once I know my motor is good) I'd like to make some changes and get some more horse power. I'll need to talk to you about a good starting place.

OleRed · « **Reply #59 on:** October 17, 2010, 10:22:41 PM »

Hi Rossco, I buy my manifolds from Dennis Moore in California, here's a link .. http://cgi.ebay.com/ebaymotors/ALUMINUM-MERCRUISER-EXHAUST-MANIFOLD-RISER-KIT-305-350-/160494176288?pt=Boat_Parts_Accessories_Gear&hash=item255e32c820
several of my friends have bought them from him also, best price as far as I know, and quick shipping, the whole kit only has a shipping weight of 54 pounds.
You will need a thermostat housing also for the center rise manifolds, the older style won't work, the supply orfice must be on the port side of the thermostat housing, the early style is on the starbord side, that one is for the log style manifolds with the riser on the rear. I don't have any more laying around.