72 Tahiti build
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72 Tahiti build

  1. #1
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    Default 72 Tahiti build

    Hi guys, I am new to this site and wanted to share my future project with you.

    I recently picked up what i was told was a 1972 tahiti jet boat. The hull appears to be in great shape, but it has no engine, and has a jacuzzi WJ . It measures a little bit over 18' long. I happen to have a selection of different big blocks that i could use...but i'll get to that in a bit. I'll try to get some pictures posted so you so some of you guys can chime in to give me your "professional opinions" on what hull i have (i can't find any numbers or ID plate anywhere on the boat)....Its also appears to have been painted at some time in its life.

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    Sorry guys, i'm having trouble trying to insert an image from my photobucket...it keeps saying invalid ULR..any advice would be appreciated. Thanks. I'll keep trying..

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    Laps Timed By Sundial halcyon days's Avatar
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    copy the URL from photobucket drag over here. click on the insert image tab, then from URL, paste link in box, unclick retrieve remote file and reference locally. click ok


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    Here she is when i brought her home a month or so ago. Thanks haylcon days for the info, i wasn't unchecking that little box.






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    Here's another pic of the transom area... dirty from sitting in my yard now.


    And a little fuzzy from my broken camera lens

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    Laps Timed By Sundial halcyon days's Avatar
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    that is a project that will easily keep you busy threw the Long canadian winter. peeps here have takin on this same type project (me not included) Good Luck & keep posting.

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    So here's the scoop. The boat came with the trailer, and a bunch of parts. The PO originally had an olds 455 in it, he must have smoked it because he said he had a 396 BBC in it last. He had to move for his job so he sold the 396 and sold the boat. When i got it it came with pretty much all the parts to put an olds 455 in it..Rear bell housing mount, two different drive shaft assemblies, some heavy as hell cast iron marine exhaust manifolds, an aluminum edelbrock torker intake, and a bunch of other random parts. It also came with a Chevy bell housing mount, some side chevy engine mounts, and some aluminum small block chevy water exhaust manifolds.

    I paid 1000 bucks for everything.

    I just happen to have a 1968 olds 455 that's a great runner sitting on a stand in my garage. I also have a 1978 454 BBC in a motorhome. Then i also have a 1968 429 ford in my garage out of my old mud truck and access to a 460 if needed.

    I'm not trying to start a war of the brands, i'm just trying to figure out which is the most practical route to take.

    Olds 455- Great runner, i am aware of the oiling issuse so i would definitly take the engine apart and address these issues before it goes in the boat (oil drains, restricted pushrods etc.). its approx 360 hp stock. I have lots of parts to get in the boat and alum intake.

    Chevy 454- Never heard it run, only has 75000 miles on it. only pushes out 220 hp because it is emmisioned to the balls. Would require new heads (pricey) and probably other internals to actually make some power.

    Ford 429- Stupid me let it sit outside for years, was an amazing engine, its a 429 thunderjet out of a t-bird, rated at approx 375 hp. Would require a complete rebuild.

    Ford 460- I have 2 of these engines, one in 79 bronco mud truck, and one in 77 F250. I know where another one is if i need it. 460 with good 429 heads???

    decisions decisions... I won't be working on this project right away, but i'd like to decide which route to go engine wise so i can tear into it this winter and start the necessary engine "prepping/repairs".

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    Quote Originally Posted by halcyon days View Post
    that is a project that will easily keep you busy threw the Long canadian winter. peeps here have takin on this same type project (me not included) Good Luck & keep posting.
    Ya i't definitely going to be an interesting project! I only wish my garage was bigger and not so full up crap so i could fit the boat inside for the long Canadian winter. I've been checking out a few of the projects guys have on this site and its definitely getting me excited to get this project underway!

    Does anyone have any idea if this hull is a tahiti, or any idea on the location of any ID numbers that might be on it? Thanks in advance...

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    Laps Timed By Sundial halcyon days's Avatar
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    if it has the hin # it would be on transom passenger side. if it's a tahiti, it's a copy of a southwind. everyone copied that one.

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    Senior Member hihosilver's Avatar
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    if you are just cruising the olds would be easiest as you will need everything for chevy or ford, just don't push the olds over 5000 rpm

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    Quote Originally Posted by halcyon days View Post
    if it has the hin # it would be on transom passenger side. if it's a tahiti, it's a copy of a southwind. everyone copied that one.
    There does not appear to be any numbers on the transom, is it common for these old jet boats to be manufactured without any numbers on them? Or do you suppose that there was once an ID plate mounted somewhere that someone has removed in the past. I have a 1980 witchcraft 17' with an outboard and its plate is mounted by the front passenger side seat I think.

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    Quote Originally Posted by hihosilver View Post
    if you are just cruising the olds would be easiest as you will need everything for chevy or ford, just don't push the olds over 5000 rpm
    These were my thoughts exactly. I'm sure if I do the oiling mods that the Olds would be a great little middle of the road performing engine to get me into the jet boat game. I think I forgot to mention that it has the good C heads too. I'd probably do some porting, and install a marine cam of some sort while I had it apart..

    On another note, I asked a buddy to get a hold of one of our other buddies that I haven't seen in years who is a very reputable performance engine builder. I wanted to ask him if he had any 454 heads and other stuff kicking around his shop that needs a home...my buddy that I asked to get a hold of him said that he'll ask him when he gets back from out west in a couple weeks, but he does know that he has a stroker crank for a 460 that needs a home...the plot thickens!

    I'll keep you posted on what I find out.

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    Default Tahiti??

    I've got a 69 and a 74 Tahiti and that boat doesn't resemble either one of them...And, Every Tahiti I've ever seen had a Berkley pump in it.. The ass end sorta resembles a Challenger with the squared off corners... What does your title say for a brand?? Is it 1/4 or full stringers?
    Ray
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    Quote Originally Posted by Moneypit View Post
    I've got a 69 and a 74 Tahiti and that boat doesn't resemble either one of them...And, Every Tahiti I've ever seen had a Berkley pump in it.. The ass end sorta resembles a Challenger with the squared off corners... What does your title say for a brand?? Is it 1/4 or full stringers?
    Ray
    Very interesting....I have noticed that most of the tahitis I've seen pictures of have the raised/sloped section at the rear above the transom, where mine has a flat section behind the raised part...you might be on to something. I did some reading on challengers and some old advertisements state that they made a 18 1/2' V jet, and mine does measure a couple inches over 18' long. I don't have a title for the boat, and I'm pretty sure it's a quarter stringer boat. The pics of the challengers definitely look like my boat too. I'm in BC right now, but when I get home by the end of the week I'll get some accurate measurements and some more specific pics of the boat.

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