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Author Topic:   68cc head rule... shave 882's ???
ssanto06
unregistered
posted June 21, 2004 09:48 PM           
OK... my motor combo will be a stock block 350, stock 4bbl cast iron intake, holley 2300 500cfm carb, rams horn cast iron exhaust manifold. We can have any cam we like.

The head rules say min combusion area is 68cc. Stock cast heads, no vortec, no angle milling.

I have a set of race ready 882's (76cc). Would it be worth it to shave them down? Could I even get them to 68cc? What other head would be good?

Thanks,
Sal


waltonjr1
Member
posted June 21, 2004 10:07 PM
Sal, I thought you were running a bomber class? Did you move up, usually bombers have a cam rule. How are you coming with the motor, did you fire it yet?



Raz_900
Member
posted June 22, 2004 07:49 AM
882's wouldn't be bad if you already have them. 441s or 487s would be better. You could probably mill .040"-.050" off the 882's to get them around 68-70 cc. Just watch the thickness of the intake ports. To thin and the gasket won't seal.


ssanto06
unregistered
posted June 22, 2004 08:09 AM           
waltonjr,

oh yeah.. I got the motor with the intention of running it in the bomber class
for a few races this summer. I'm getting married in August though so I think
my racing plans may have to be put off till next season. Right now I'm just
thinking about differend classes to run and what I might do... still deciding
for next season.

Thanks,
Sal




ssanto06
unregistered
posted June 22, 2004 08:10 AM           
what about camel hump heads? they are 64cc... the rules don't say anything about opening up the chamber to 68cc... would that be worth it?

thanks,
sal


BrianW
Member
posted June 22, 2004 04:09 PM
Opening up the chambers on a good head is always a better option - unless you have a flat-top piston rule then I'd run a domed piston to bump the compression... Cam it to match the RPM range / rules you need


ssanto06
unregistered
posted June 23, 2004 08:03 AM           
So it would be worth it to spend the $100 and shave my 882's? I'm looking to be as competative as possible but budget is always a concern...

-Sal

flatfoot27
Member
posted June 27, 2004 09:12 AM
I personally would not shave the 882's. They are not a heavy enough head to handle the pressure. I would look for a set of 441's and have them shaved. But you could also have the block shaved down to get maximum compression and use a thin gasket. You could possible get to to 72cc just from that work. If you use the right cam and get the right work done you can build plenty of power to compete with this combo. The 882's will never compete with the better heads. A set of 441's will alone give you more power. But remember you have to run the right valve and right cam to make that motor breath. You haft to be able to get it in and get it out. Also your carb has to give the fuel and air to make that motor run. Just my 2 cents worth. Good luck.


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