I dont think she can take it captain

Corey,   Keep it stock!!! Big bucks and big HP= porpoise big.   (only my opinion)

   Did you get the AWSA decals?

   AT

PS take a look at my post "255 pretty ponies"
all stock,except for the aluminum intake, valve covers and coil.

I am making around 300hp and this was done with a cam and intake kit, some head work and a hot ignition. Just letting it breath.
http://www.performancedistributors.com
I rebuilt my engine two summers ago, I went with a Eagle Balanced Rotating assembly but all the numbers are stock, bore & stroke. You can easily! make 300hp with a stock bottom end. Like TRBenj said the biggest thing is my acme prop!!!

corey the stroker boy is going to have more problems later, he just doesn't know it yet, Tim's a little over optimistic on the gains from the heads alone. There are several things to do to get to the low 300HP, doing all the head work and staying with the stock PCM exhaust doesn't make much since to me, you buget is going to run out very quickly, but to start, intake and cam, balance the motor, electronic distributor, doesn't have to be the HEI unit, they have just bought into a sale's pitch that the advance curve is going to be better, when it's not anything you cann't do yourself, and it's atleast 100 bucks more. Heads are the next thing GT40's are nice, easy cheap upgrade but not top dog when it comes to heads, there are other options that cost a little less.

79nautique wrote: corey the stroker boy is going to have more problems later, he just doesn't know it yet, Tim's a little over optimistic on the gains from the heads alone. There are several things to do to get to the low 300HP, doing all the head work and staying with the stock PCM exhaust doesn't make much since to me, you buget is going to run out very quickly, but to start, intake and cam, balance the motor, electronic distributor, doesn't have to be the HEI unit, they have just bought into a sale's pitch that the advance curve is going to be better, when it's not anything you cann't do yourself, and it's atleast 100 bucks more. Heads are the next thing GT40's are nice, easy cheap upgrade but not top dog when it comes to heads, there are other options that cost a little less.

79, I said 325 horsepower can be had by upgrading heads, intake and cam- not the heads alone. PCM claims 45 horsepower from the GT40 heads (240 vs 285 hp) so the intake and cam should get pretty close to 325.

Wouldnt it make more sense for Corey to do the heads and intake first, then select a cam based on chosen parts?

Obviously any electronic distributor is going to be a big improvement. Its expensive, but I think the money spent on a DUI is well worth it. I picked up 200 RPM on the top end from that alone.

Upgrading the exhaust manifolds should gain some decent power, its too bad there arent many options for the 351w. Ill probably do some port work on the stock pieces until I have the funds saved up for the $1700 HiTeks.

Corey, are you planning on doing the port/polish on the heads yourself? If youre paying to have it done, I would start with some better heads. Decent gains can be seen with GT40 or GT40p's, and they can be found used for pretty cheap.

Several members have posted here sharing the specs for cams they have used. I also got great info from a company called Cam Research that only does Fords- their tech knew more about my specific application than CompCams did. You will need to know what other parts youre working with to get a good recommendation on the cam.

Like I alluded to above, performance exhaust manifolds for 351w marine motors are rare. HiTek makes some nice looking pieces for ~$1700 but thats pretty much it. If thats not in the budget, Ive heard that some gains can be had from porting the stock manifolds. Custom headers would be difficult and expensive- better to go with the HiTeks at that point.

just checked out HiTeks those will be on the boat within the year but what about clearance those things are as high up as the carb.

you shouldn't have a clearance problem with the HiTek exhaust they are not suppose to be any higher than the current PCM center risers

my new motor has about 325 to 340hp you have to start with forged flatops and work your up.

The 351w is a strong motor i would rather have chevy 350 too but we have what we have.