Any 30's for sale?
#32
VIP Member
VIP Member
Hey ZZ,
New camshaft?
Do your boat engines winter inside like mine have the last few years?
I spent 4 hours cleaning my basement today to make room for rebuilding my little 7.4L. Boat and engine parts are everywhere...
Hell, nothing to do outside, 9°F for a high today.
Later,
New camshaft?
Do your boat engines winter inside like mine have the last few years?
I spent 4 hours cleaning my basement today to make room for rebuilding my little 7.4L. Boat and engine parts are everywhere...
Hell, nothing to do outside, 9°F for a high today.
Later,
__________________
Patrick
Patrick
#33
Registered
YES IT WAS COLD I WAS TO BE AT HOME DEPOT BY 7AM TO PICK UP LUMBER FOR MY BATHROOM PROJECT BUT WHEN I GOT UP I COULD NOT SEE OUT MY WINDOWS THE ICE WAS ON THE INSIDE? I TURNED ON THE TV AND IT WAS ALMOST 10 BELOW.CAMSHAFT ? ITS TIME TO WAKE THE 540.
#34
VIP Member
VIP Member
ZZ, so what cam are you going with?
How much more are you hoping for?
I got my re-calibrated ECU back yesterday. I am hoping to stay with the MPI. If I don't gain at least 400rpm, a carb and high rise intake will replace it.
How much more are you hoping for?
I got my re-calibrated ECU back yesterday. I am hoping to stay with the MPI. If I don't gain at least 400rpm, a carb and high rise intake will replace it.
__________________
Patrick
Patrick
#35
Registered
The hull is a 99 tempest deck with a y2k bottom.It,s weight was on the scale at 4575 with a full tank of fuel. Mcbetts 540.Imco short drive extension box and steering.Float on aluminum trailer.Pat im looking at a crane 741 cam from a merc 575 . The 575 only has 75 hrs on it and if you want it its yours, its back in the box with the lifters and springs. Thats for the flag favor I/O/U
Last edited by z.zuperboat; 01-13-2004 at 11:26 AM.
#36
VIP Member
VIP Member
Thanks for the offer Mike!
Probably too much cam for my little 7.4.
Hang onto it for someone that has a bigger engine.
I bought a custom grind roller from Marine Engines in Mass.
It's supposed to give me another 40-50 ponies which will max out my GM injection system.
Ordered up a gasket set today, time to start tearing into it.
Talk to you soon,
Probably too much cam for my little 7.4.
Hang onto it for someone that has a bigger engine.
I bought a custom grind roller from Marine Engines in Mass.
It's supposed to give me another 40-50 ponies which will max out my GM injection system.
Ordered up a gasket set today, time to start tearing into it.
Talk to you soon,
__________________
Patrick
Patrick
#37
Registered
Pat who is putting the motor together.Installing the cam spring height push rod length and so on. Make sure you have the good valves.Comp cams makes a roller lifter that has a grove in it that sprays pressurized oil onto the wheel of the roller.Not just splashed from below,at startup and sitting for weeks at a time this is a great option.
#38
VIP Member
VIP Member
Hey ZZ,
I had my heads done at a local machine shop.
Bowl ported, new Manley severe duty ss valves, new springs, retainers, and locks.
The cam I purchased will work with all of the other stock GM valve train parts.
I am reassembling the engine.
Not going too wild with this engine, it's not worth the $$. Remember, it's got a cast crank, the small rods, and the GM fuel injection.
My plans are for a 502 next year, just doing a little tinkering along the way.
I had my heads done at a local machine shop.
Bowl ported, new Manley severe duty ss valves, new springs, retainers, and locks.
The cam I purchased will work with all of the other stock GM valve train parts.
I am reassembling the engine.
Not going too wild with this engine, it's not worth the $$. Remember, it's got a cast crank, the small rods, and the GM fuel injection.
My plans are for a 502 next year, just doing a little tinkering along the way.
__________________
Patrick
Patrick
#40
VIP Member
VIP Member
Hey Zuperboat,
Is your engine a 540 tall deck or a stroker 502 block.
I have a friend with a stroker. He built his with Merlin VRs, the Crane 741, and I think about 9.5 to 1 compression.
Dyno tested at 585HP @ 5600 I believe...
So what's your plan? 600+HP, looking for 90mph?
It's -2°F outside, so I'm trying to think Boats and Bikinis.
Is your engine a 540 tall deck or a stroker 502 block.
I have a friend with a stroker. He built his with Merlin VRs, the Crane 741, and I think about 9.5 to 1 compression.
Dyno tested at 585HP @ 5600 I believe...
So what's your plan? 600+HP, looking for 90mph?
It's -2°F outside, so I'm trying to think Boats and Bikinis.
__________________
Patrick
Patrick