demax990

Ok guys so oil prices are down and work is slow and the boat needs work I was planning to build a 500 hp engine for the boat as my 330 hp gave up last summer what I have now is a gen v with full forged rotating assembly with 30 over twr 2399 pistons gill/merc manifolds, morel hyd roller lifters, roller rockers, a 4150 hp holley 750 cfm, a weiand intake that matches peanut port heads and of course the greatest heads ever the peanut port heads and the rest of the stock 330hp engine I do not have the money to finish off my build the way it should be and I am not going to sit on shore all summer so I am planing on using my heads, intake, carb on the short block I might change the cam to a hyd roller as I have the lifters and such what cam do you guys suggest? What kind of power can I make with this set up I would like 400 but I know I should have atleast 330hp lol yes they are better heads and I would love to have a cam from bob m and yes a better carb and cmi's but that is not in the books the boat is only 21 feet long and I do not do alot of wot driving hopefully next year I can save up and finish this thing off right what do you guys think

endeavour32

iTrader: (4)

I'm no expert, but those heads are done at 4500 rpms. I seriously doubt your going to get to 400 hp with peanut ports no matter what the other components are.

Rookie

iTrader: (4)

If it were me. I would build the short block with the good parts and hyd roller cam now. Have your top end be the limiting factor. It only takes a day to put on new heads and intake when you can afford it. Make sure new cam end exhaust does not create a reversion problem and destroys a good short block.

demax990

Rookie that was what I was thinking good short block and the rest I can do when funds permit

endeavour32 I have read threads on there that guys claim to be making up wards of 430 with peanut heads I would be very happy with 400 from them but then again I guess I can be garenteed 330

Rookie

iTrader: (4)

Be aware that mismatching components may net a lazy engine in the beginning. Not always, but be aware.

demax990

What would be your guys choice for a cam to take full advantage of the power potential of the heads

endeavour32

iTrader: (4)

There is no power potential in Peanut Ports also don't believe what you read! You will not make 430 hp with boat engine using Peanut Ports. You would be doing good to make that kind of power with factory 088's. Do as Rookie suggests, build your lower end with the goal of putting better heads on later. I honestly doubt you will gain anything until you get rid of those heads. Peanut ports stink no matter how you slice it, they are good for what merc used them for. Beyond 330 hp, forget it. You need to also remember that the guy stating he made 400 hp, is with an engine with dyno headers and no accessories. Take your 330, put headers and no other power robbing parts, and I bet you would also make 400 hp.

demax990

So for the camshaft just use something that has the same specs as the stock one if I plan on using my roller lifters or just reuse my stock 330 cam

dereknkathy

454-502 HO cam. GM number...24502611 510/540. 112 LSA 211/230 dur at .050. the zz502 with 110 LSA would be a little too wet with those short riser Gil exhausts. under 200 bucks jegs and pace performance. gen 5 you can't realistically mess with old ovals that are cheap and easy to find. L29 vortec heads are all over the place and cheap. better than peanuts and the 100cc chambers will get you up to 9 to 1 with those flat pistons. absolutely stuck with those peanuts? do a little port cleanup and gasket matching. electric drill and small stones and carbide cutters. it is SLOW work but free. do some googleing porting peanut heads.

Unlimited jd

iTrader: (5)

How much do you spend a weekend in fuel? Should be able to pick up some 088 heads for about the same as 2 weekends worth of fuel. I'd skip a couple or boat with a buddy for the month of May to do it right for June. Just me though. I totally get being stuck to a budget no matter how good the deal