Upgrades to stock 350 sbc
#11
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Joined: Jul 2007
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From: Lake George, NY
You guys really think I can get away with the 64 cc chamber heads and still run 87 octane? I will be using the stock bottom end and I have not opened it up yet to see whats in there so I have no idea what pistons are in there. I know they say you can run higher comp and avoid detonation with the aluminum heads but I don't want to have to worry. Most marinas on my lake are 87.
#12
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Joined: Nov 2006
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From: Tygart Lake, WV
That prop was on it when I bought the boat this summer. She gets on plane with ease, even with a full tank and 4 persons aboard, and I never use the tabs.
You guys really think I can get away with the 64 cc chamber heads and still run 87 octane? I will be using the stock bottom end and I have not opened it up yet to see whats in there so I have no idea what pistons are in there. I know they say you can run higher comp and avoid detonation with the aluminum heads but I don't want to have to worry. Most marinas on my lake are 87.
You guys really think I can get away with the 64 cc chamber heads and still run 87 octane? I will be using the stock bottom end and I have not opened it up yet to see whats in there so I have no idea what pistons are in there. I know they say you can run higher comp and avoid detonation with the aluminum heads but I don't want to have to worry. Most marinas on my lake are 87.
#14
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From: Buffalo, NY
If the OP runs iron heads and over 10-1 ish compression 87 octane may be an issue. If he runs aluminum there won't be an issue.
I consider myself lucky because we have 91 octane ethanol free available at the pumps.
I consider myself lucky because we have 91 octane ethanol free available at the pumps.
#16
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Joined: Jun 2013
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That prop was on it when I bought the boat this summer. She gets on plane with ease, even with a full tank and 4 persons aboard, and I never use the tabs.
You guys really think I can get away with the 64 cc chamber heads and still run 87 octane? I will be using the stock bottom end and I have not opened it up yet to see whats in there so I have no idea what pistons are in there. I know they say you can run higher comp and avoid detonation with the aluminum heads but I don't want to have to worry. Most marinas on my lake are 87.
You guys really think I can get away with the 64 cc chamber heads and still run 87 octane? I will be using the stock bottom end and I have not opened it up yet to see whats in there so I have no idea what pistons are in there. I know they say you can run higher comp and avoid detonation with the aluminum heads but I don't want to have to worry. Most marinas on my lake are 87.
#18
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Joined: Feb 2012
Posts: 4,031
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From: westville, NJ
alum heads and alum center dump GLM exhausts. they are good for about 350 to 375 hp. enough for all but the really exotic small blocks. also taking 150 lbs outta the back of the boat. then you can carry 1 more size 7 girl, or skank as they seem to be called on this forum...
#19
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Joined: Jul 2007
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From: Lake George, NY
This might sound like a wierd question but anyone see any possible problems losing too much weight off the back of the boat by going with Aluminum intake, aluminum heads, and aluminum manifolds (GLM's) or headers?
#20
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Joined: Nov 2004
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From: On A Dirt Floor
Not usually. If I could lose more weight off the back of mine I'd be psyched. In reality my gas tank needs to be a little more forward.
My Eddie Exhaust was 88lbs lighter than the factory system it replaced. That, of course, was a much bigger weight reduction than the aluminum heads, which i did too.
Placing my batteries a few feet forward of where they where helped tremendously. Again, my little boat doesn't like weight in the rear at all...and yet again, I believe the tank should have been moved more forward. Oh well.
Edit in: My boat will lose 2-3mph (min) for having a passenger.
My Eddie Exhaust was 88lbs lighter than the factory system it replaced. That, of course, was a much bigger weight reduction than the aluminum heads, which i did too.
Placing my batteries a few feet forward of where they where helped tremendously. Again, my little boat doesn't like weight in the rear at all...and yet again, I believe the tank should have been moved more forward. Oh well.
Edit in: My boat will lose 2-3mph (min) for having a passenger.
Last edited by SB; 11-18-2014 at 02:04 PM.



