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Author Topic:   head cc?
AC156
Dirt Freak

Total posts: 295
posted September 02, 2002 12:38 PM
does anyone know what size combustion chambers these heads have? casting # 081. supposed to be off of a 1988 monte carlo ss 305.

jammin
Dirt Administrator

Total posts: 5556
posted September 02, 2002 07:02 PM UIN: 16262997
Here is the flow chart....

Flowbench results for SBC casting #14101081, application 87-91 305, stock ports


Intake lift (in) Flow (cfm) Exhaust lift (in) Flow (cfm) Ratio E/I flow (%)
0.050 31 0.050 15 49
0.100 63 0.100 37 58
0.150 92 0.150 61 67
0.200 116 0.200 78 68
0.250 134 0.250 92 69
0.300 157 0.300 101 64
0.350 170 0.350 105 62
0.400 182 0.400 107 59
0.450 189 0.450 109 58
0.500 195 0.500 110 56


jammin
Dirt Administrator

Total posts: 5556
posted September 02, 2002 07:10 PM UIN: 16262997
1986-91 14101081 305 1.84 1.5001 - EFI, std port

jammin
Dirt Administrator

Total posts: 5556
posted September 02, 2002 07:14 PM UIN: 16262997
I am assuming they are probably a 55 or 58 cc chamber.

jammin

AC156
Dirt Freak

Total posts: 295
posted September 02, 2002 07:50 PM
thanks jammin. i think they are 58cc but i couldnt find it anywhere on the web.

jammin
Dirt Administrator

Total posts: 5556
posted September 02, 2002 07:54 PM UIN: 16262997
The valve sizes were all I was able to find.

But, the flow numbers should help a little.....came off of a SS site.

jammin

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