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Old 02-12-2009, 08:32 PM
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350 build questions

I'm going to get an engine built for my airboat this summer and i'm trying to get everthing straight.

I already have a
350 block
882 heads
1.5 harland sharp roller rockers
solid roller lifters

On the list to get...

Hypeurectic Pistons(What do ya'll recommend? brand, etc...)

Cam....Maybe this one
http://www.compcams.com/Cam_Specs/Ca...?csid=304&sb=2

Intake: Edelbrock Performer RPM airgap

Carb: edelbrock 750cfm

Distributer: ??


I'm sure you can tell I know very little about engines.

I plan on using the crank and rods that are in the engine.

What HP range would I be looking at?

Any suggestions are greatly appreciated.


Also, does anyone have an engine builder that they recommend in the south central texas area?
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Old 02-12-2009, 08:46 PM
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http://www.jegs.com/p/Keith+Black/748677/10002/-1

Maybe these pistons? Looks like they should put me in the 10:1 range
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Old 02-12-2009, 09:14 PM
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Quote:
Originally Posted by belly_up
http://www.jegs.com/p/Keith+Black/748677/10002/-1

Maybe these pistons? Looks like they should put me in the 10:1 range
Those would be 9.1Cr with your 76cc 882 heads.
http://www.chevytech.com/3c333882.html
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Old 02-12-2009, 09:40 PM
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thanks, i had a brainfart, for some reason i was thinkin they were 64cc
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Old 02-13-2009, 12:43 AM
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I would use the speed pro hyper flat top 2 valve relief piston. This way you don`t have to worry about file to fit the rings and I believe the speed pros are cheaper. I`ve used these pistons in several street builds and had good service out of them.
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Old 02-13-2009, 12:53 AM
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The 882 heads are really poor and will seriously limit the power you can make.

Find a better cylinder head if you want power.
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Old 02-13-2009, 07:48 AM
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Quote:
Originally Posted by F-BIRD'88
The 882 heads are really poor and will seriously limit the power you can make.

Find a better cylinder head if you want power.
These heads/valve train were on the engine I had before and were able to produce the power that I needed.

I'm on a tight budget so i'm trying to go with what i have.



I'm really looking for reliability, would going .030" over bore take away from that or should I keep it stock?

If I did, what benefits would I see?

THanks!
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Old 02-13-2009, 08:05 AM
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.030" over wouldn't hurt reliability- if you use torque plates it may actaully help it.

That cam is way overkill for those heads though. Look for a standard flat tappet hydraulic grind. More money on more cam is senseless in this case because those heads won't support it.

Here's a cam that will have a good power range, is reliable, and the whole kit is $130 out the door.

http://competitionproducts.com/prodi...?number=E1029K
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Old 02-13-2009, 11:28 AM
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23 dgree performance heads

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Last edited by engineczar; 02-13-2009 at 06:57 PM. Reason: Advertising. Please see: commercial posting guidelines.
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Old 02-13-2009, 12:32 PM
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you really should be asking for suggestions on the air boats forums...

you need to be considering your whole boat package,,,prop gear reducer ratio/prop size and pitch/boat length and weight/etc/etc,,,when picking the motor parts....

food for thought link:
http://www.waterthunder.com/dyno.aspx

airboat performance build is a whole different world...
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Old 02-13-2009, 06:23 PM
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HonkeyKong....You have made 3 posts on this board....all 3 are trying to sell your heads...Ads are not allowed on our board......Any further misuse of the board will result in banishment
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