Hello to all and wanted to say thanks to all the people that post all the information a person can get on a jet boat. I have been reading and reading and reading so much so that I am almost crosseyed from it all. There again thanks to all.

Here is my delema, I live on the eastcoast and jets a far and few around here. Got my first jet boat and had to do a lot of work to it but I can say it will fly for a 20'. Pictures to follow.

 The engine is a 468 bbc with peanut port heads that work great. 750 holly dual feed and holley airgap intake.. dont know the cam as i got the motor second hand but it is a comp cam with behive springs and turns right at 5000 with a A impy just rebuilt and has a nice little chop to it. Before rebuild it ran 56 at 5200 and on gps....have not run gps since rebuild but it pulls harder than it did with the seatometer.

The thing I am trying to find out is about the pistons in this motor. Pulled the heads a while back to take a look see and found "Manley .060 P699" stamped on them.  I know they are .060 over sized, but i was thinking of refreshing this thing and dont know what to do about these. Where to get rings or info on them. I have looked everywhere to no avail. Engine runs great with no issues. No pinpging, rattles, nothing. When you step on it takes of like a rail.


Thanks for the help all. I know I am also a long way off....3000 miles but used to live in lompok outside Vandenburg AFB for a good while.


Jim

Thank you for the comp, And the reply..... Its cominng along a little slow, but its getting there. 
The biggest thing is I cant find anything on them. I called the company who made them and they referenced the number I gave them and said they never heard of them.....Dont know about that, but you know how that goes. The other thing is I am wondering about the C.R they give and if they are forged or cast. Hate not knowing what the deal is....even with the cam...it has solid lifters and roller rockers....there again dont know the grind . Cant complain about the engine yet as it pulls harder than you would think. And there are a few guys over here that are suprised at how well it does. But when they ask me about it I cant tell them anything and when I do they are like....."what kind". Guess when its time to freshen I will just have to find out then. Thanks again Jim

Thank you for the comp, And the reply..... Its cominng along a little slow, but its getting there. 
The biggest thing is I cant find anything on them. I called the company who made them and they referenced the number I gave them and said they never heard of them.....Dont know about that, but you know how that goes. The other thing is I am wondering about the C.R they give and if they are forged or cast. Hate not knowing what the deal is....even with the cam...it has solid lifters and roller rockers....there again dont know the grind . Cant complain about the engine yet as it pulls harder than you would think. And there are a few guys over here that are suprised at how well it does. But when they ask me about it I cant tell them anything and when I do they are like....."what kind". Guess when its time to freshen I will just have to find out then. Thanks again Jim

I have seen some old stock Manley pistons for sale on Ebay,, think they were forged 2618 alloy.  Note the the number in the photo is P 5699,, you typed "P 699".  As was mentioned, getting .060" over rings is easy, but make sure to check the existing ones to get the correct thickness.  A quick search actually shows a few pistons still on their site, just no BBC that I saw.

Also as mentioned the camshaft should have identifying marks on the end, but may not have a company name if it was a regrind.  You can measure lift with calipers once it's out of the engine, but if you want to check duration you will need to check it with a degree wheel while it's still in the block.  The alternative to that is having a shop that grinds camshafts measure it up for you,, presumably you would need to ship it to someone and pay to have it done.  I am lucky enough to have a local guy who grinds all my camshafts out here in California if I need one checked.

i was thinking i am going to fiddle around my grandpas shop and see if i can find an old PAW catalogue

Thanks for looking that up........So, what you are saying is i have a trully set of old old old pistons running in this thing........ . This is to funny..I was told when I bought this one it had wiesco pistons, comp cam, and a few other things...but it ran/runs great, uses no oil, and is a blast to just and sit and listen to...not to mention it hauls a** when you step on it. Here is a prime example of buying some thing unseen....internals that is. But I am happy.....Headed out to the lake tomorrow to get it wet and all that goes with it.

JIM

Here is one of it running that a friend took from the beach here at lake Murry in SC. kinda hard to see the boat, but thats the second time out with it before it got painted 3 weeks ago. Now working on getting the inside of it straitened out. Here are a few of it while I was working on it before painting and a few after painting..


Aslo, has anyone seen a tahiti in this style hull before. I know they made bubble decks, but never seen one like this.

Little side note again....the Edeljunk carb is also not on there anymore....has a 750 dual feed holley. Never could get the edel  to run right at all. Now it screems. Most of what you see in the picks I read and did from reading the forums here. Have to say...between "Tom"..."Beerjet"... just to name a few AND MANY MANY others I have gotten it this far.  Thanks guys and thanks to Socaljetboats!!! Great site.

Nordie.....its all good man. Nothing taken wrong......I am just an old fart playing with a new toy and you know how us old people are.....may sound cranky, but were good. Back in the 80's was the era for BBC or known as  "RAT POWER"  This is my first time with a jet so i take everything info wise I can get and put it to good use.........this is kinda like a midlife crises thing (cant afford a supercar so I am making a superjet) . ROFLMAO.. Altleast thats what the wify says. But its all good man.

I did put a 750 Holley dual feed sec. vacum carb on it after fighting that edle for 2 weekends. Now like I said it screems when you hit it. Love it.