Need advise on buying 800hp boat

[powerplay1]

I will be purchasing a 1972 19ft Sanger with a blown chevy and v-drive tomorrow and wanted advise before I do.

Seller states that it can do 100mph and guesses 800hp output. Here are the specs. that he gave me but i don't understand any of it.

Chevy 360 bored to 396 with a 400 long rod, forged pistons, hydraulic crane cam, chrome drage v drive oil pan, super pump waterpump, cam driven, 871 custom built blower, holley 750 race blower carbs, enderle, trw, speedpro, crane, eldebrock, casale, menkis prop, bassett, all internal parts are brand new and have about 30 minuetes run time.

What rpm should this be turning at and is there anything I should look for during test drive besides my balls?

he says that boat needs a paint job and comes with trailer that is in somewhat ok cond. Asking price $7500.

What do you guys think? The 800hp and 100mph definately has my attention. :D

[Travis Fulton]

dont know about the 100mph?? doubtful,,, but i would be a little skeptical on 800hp! even though it has a blower that kind of mota would only make 400 hp or so w/o blower! and the huffer isint going to give it an additional 400 ponies! should be fun just not practical... good luck and this is just my opinion:D

[outboards4life]

Also make sure that the crank is a good steel crank, not a crap cast iron crank. They will not take the abuse.

[powerplay1]

yes , it has steel crank.

Thanks

[powerplay1]

This was sent to me through PM by another member so I would prefer not to mention the sender's name.


I have been a drag raceing for many years . we just dynoed a 421 small block @ 628hp. all motor. If it was a jet drive 100 would be hard to beleive. But this is a v drive which would see 100mph with 450-500 hp easy. depending on heads and boost the motor could see 800+ hp no problem. Have fun with your boat!!!!

What do you guys think?

Thanks for all the input everyone. I haven't bought the boat yet, but will need to give seller an answer soon as he will be traveling 80 miles to deliver (for a fee).

[Dean Blowers]

this engine is very capabl of 800 hp but as stated when i was asked " it should be between 600-800hp, it was never dyno tested, the base of this motor was a 366 tall deck bored to a standerd bore 396, 4 bolt main, nitrided steel crank, add 400 H beam long rods and 396 blower pistons and there you have a 396 tall deck with tons of bottom end torqe

[Travis Fulton]

now thats capable of lots of torque!!! when you said 360 i just figured you miss-printed 350???? oops, but whats up with a special gear driven blower?? normally just driven off of a belt??

[EASY MONEY]

need max rpm's under torque( in the water) sounds like you would need to turn at least 8000 rpm's to make 800 pony's from a small block.

[mrcrsr]

why would use a useless 360 block? you now have the weight of a big block without the displacement! as the old saying goes, there is no replacement for displacement! incidentally, i am running a blown 383 chevy( 350 4bolt block, manley 4340 crank, 6' h beam rods and je blower pistons, dart sportsman heads and a weiand 177 blower, in a 69 camaro convertible, it has a crower hydraulic cam, runs on premium pump gas and has been chassis dynoed at 550 hp(rear wheel), which is probably close to 650 at the crank, and is very streetable, and weighs at least 200 lbs less than a big block chevy, is more reliable, and gets decent fuel economy(16 mpg @ 60 mph w/ 3.73 gears- no overdrive- don't underestimate the small block- nad think about how much cheaper small block parts are- just something to think about!

[Travis Fulton]

360 is a big block:confused: 366 and 427 commonly used in bigger trucks 2 ton??? were tall decks

[mrcrsr]

that's right, its a big block without the big block displacement- the whole advantage to running a big block!!!! all the weight without the power!!!

[heath brinkley]

A big block with small block rods ??? and 400's had short rods not long rods, If they're long rods they're not 400's they're aftermarket to fit a 400 crank, 800hp is very easily achievable from a small or big block chevy and done quite frequently. every sprint car on the WoO makes at least that with a small block and no blower. I'd be more concerned with the 30 minutes run time...30 minutes my ass, I'd guess.

[DonJuan]

Dont kid your self with the small block versus big block penis war.... Small blocks just like a big block can produce phenomenal HP. Example..... Billet Specialties 62 Biscayne. 1250 HP on pump gas. Built two years ago by Rad rides by Troy. Just like some big blocks are noting more than " boat anchors".......

[Bruster]

Originally posted by DonJuan
Dont kid your self with the small block versus big block penis war.... Small blocks just like a big block can produce phenomenal HP. ".......

It's just a LOT easier to make BIG H.P. that lasts with a BIG INCH motor....
period:D

[heath brinkley]

more inches are always better in any realm, no disputing that.

[mrcrsr]

A BIG INCH MOTOR FOR BIG BUCKS!!! BUT WAY DIFFERENT FROM USING A 366 -ALL THE PARTS FROM THAT ENGINE FOR A BUILDUP WOULD BE USELESS!!! HE WHO HAS THE MOST DOLLARS INVESTED WINS(THE OLD ADAGE)

[Liberator25]

Originally posted by powerplay1
I will be purchasing a 1972 19ft Sanger with a blown chevy and v-drive tomorrow and wanted advise before I do.

Seller states that it can do 100mph and guesses 800hp output. Here are the specs. that he gave me but i don't understand any of it.

Chevy 360 bored to 396 with a 400 long rod, forged pistons, hydraulic crane cam, chrome drage v drive oil pan, super pump waterpump, cam driven, 871 custom built blower, holley 750 race blower carbs, enderle, trw, speedpro, crane, eldebrock, casale, menkis prop, bassett, all internal parts are brand new and have about 30 minuetes run time.

What rpm should this be turning at and is there anything I should look for during test drive besides my balls?

he says that boat needs a paint job and comes with trailer that is in somewhat ok cond. Asking price $7500.

What do you guys think? The 800hp and 100mph definately has my attention. :D

Not to hose you down, but this is a boat for a gear head. If you don't understand all the "specs", you'd be better off with a stocker and work your way up as you gain knowledge and experience. This boat will need MAINTENANCE and if you don't know how to do it yourself, you're going to need a good mechanic and $$$. This is NOT a turn key reliable type of boat. Boating should be fun and if you aren't aware of what you are getting into, it won't be. Have you checked into insurance? There's more to know about Hot Boating than "it'll do 100". Just my Opinion. Best of luck.

:cool:

[DonJuan]

You guys are absolutely right........ " there is no replacment for dissplacment " when you are trying to build "BIG" power. But honestly...... 800 horse....... isnt "BIG" power these days. I tell ya what I think would be a bitchin set up..... a supercharged LS-1. You can reliably pump one of those little motors up to 550 horse with stock internals. And think about the weight savings you would have going to an all aluminum motor.... ;)

[cborah]

Hey I would be looking at this engine closely 400 rod has a smaller jounal then a big block ,the side clearence is smaller ,the wrist pin is smaller, why do this at all ,its no way to make power. A 383 on 406 small block will kick ass over 366 lead bullet all day long . the big block can turn the revs small block can. I think some body is smoking some good sh*t.

[fijjity]

With a longer stroke crank. Dunno what rods are in it, but using the stock stroke crank, it won't work. The tall deck had 4 rings total. We built a 357c.i. small block that cranked out 1200 hp with a PSI blower. Of course it was for offshore racing so it had the trick gizmos EFI system, superchiller, Rocket block , Canted valve bowtie heads, MSD driven off the front of the cam. Your Vdrive motor may have a little larger cubic inch if stroked. Smaller bore capable of higher rpm's. Most likely, close to 800 hp with the huffer. My 427 made 780 hp on the dyno with an 1150 dominator carb. Ask to see some rcpts for the engine work. 100 mph is probably the best it ever did.

[maustin]

On the rod issue he probably misunderstood.The rods for a tall deck block are .4oo" longer not 400 rods.