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post #1 of (permalink) Old 02-06-2002, 12:47 AM
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Cylinder Heads

Ok so in my auto tech classroom they have what appears to be a 350 SBC on display well it's partially torn down with one cylinder head sitting on the floor. So I thought "what they hell I'll run the #'s" so that's what I did with that website I got the last time I wanted cylinder head #'s decoded. Here's what I came up with:
3917293....68......307/327......75cc chambers
[b]<font color=blue>#1 These probably won't even bolt up to my 80 350 will they?
#2 If they would would they work good with my combo I already have:.030 over, 268 Comp Cam, Aluminum Intake, Q-jet, about to have headers and 2-chamber (40 series) Flowmasters.
#3 if they will bolt up, and they will work with what I have what should I offer? Should I try and play it off and ask to simply swap for a set of heads I have just lieing around at my house (he's a Toyota mechanic so he doesn't know much about Chevys). What should I do?

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post #2 of (permalink) Old 02-06-2002, 07:42 AM
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Re: Cylinder Heads

I don't no much about those specific heads, but I'd say they aren't that great(large combustion chamber for a 68 head--- meaning low compression, low performance) but I am not sure if they are better or worse than the heads on an 80.

The heads will bolt up although they might not have accessory bolt holes drilled and tapped.

post #3 of (permalink) Old 02-06-2002, 08:32 AM
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Re: Cylinder Heads

75cc combusrion chamber!!!!!!!!
If you have domed pistons you could probly get 9:1 compresion.

94 GMC ?lift?
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post #4 of (permalink) Old 02-06-2002, 10:41 AM
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Re: Cylinder Heads

30 stock piston's or high comprison piston's ?

What are oyu looking for to get more comprision out of it? then you wan to get a set of camel hump heads 64cc then have 202/194 valves putin for breathing but rember no of days the higher comprsion you get the more heat + the higher octane fuel you well have to run .

Ive got a combo for here i run on my derby car Its a 350 4bolt block /262 crank witch is a 3.100 stroke /5.725rods/ 302 chevy factory forged pistons/ cubic inches comes out to 313 i have to run copper head gakets 90 thousands think beacuse of piston to vavle clearnce with a set of 64cc heads with 205 /195 vavles. the only thing it will run on is turbo blue fual or soniko but it well turn 10500rpm all day long man i love to just start the motor to here it run LOL! There is 1 good thing about thos head there they are extra thick less pron to craking Or you could find set of truck heads hat has bronze vavle guides there extra thick and will last for ever

<font color=red>And yes if you dont no it buy now i cant spell LOL!</font color=red>
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