need compression calculating help
Thread Starter
Drifting
Joined: Apr 2004
Posts: 1,302
Likes: 36
From: Allen Park Mi
need compression calculating help
actually, does anyone know what the dome volume of a .030 over 327 SHP piston is? the 327-365 motor i'm referring to.
i just got my heads CCed and they are 60cc chambers, .030 over 327 and I"m running the .015 embossed/coated steel head gasket from felpro... deck heigth is stock.
any ideas?
thanks
Aaron
i just got my heads CCed and they are 60cc chambers, .030 over 327 and I"m running the .015 embossed/coated steel head gasket from felpro... deck heigth is stock.
any ideas?
thanks
Aaron
Melting Slicks
Joined: Sep 2003
Posts: 3,050
Likes: 2
From: Orange Ct
Using this http://www.csgnetwork.com/compcalc.html
with a 5.3 dome it works out to be about 11.7 static
with a 5.3 dome it works out to be about 11.7 static
Safety Car
Joined: Sep 2004
Posts: 4,049
Likes: 134
From: St. Clair Shores MI
C2 of Year Finalist (track prepared) 2019
2017 C2 of the Year Finalist
'stock deck height' can be anything from .025 to .045 in the hole, even on the different ends of the same block, which means 11.1 to 11.7
(ask me how I know
)
(ask me how I know
)
Le Mans Master
Joined: Jan 2002
Posts: 8,913
Likes: 283
Originally Posted by aaronz28
actually, does anyone know what the dome volume of a .030 over 327 SHP piston is? the 327-365 motor i'm referring to.
i just got my heads CCed and they are 60cc chambers, .030 over 327 and I"m running the .015 embossed/coated steel head gasket from felpro... deck heigth is stock.
any ideas?
thanks
Aaron
i just got my heads CCed and they are 60cc chambers, .030 over 327 and I"m running the .015 embossed/coated steel head gasket from felpro... deck heigth is stock.
any ideas?
thanks
Aaron
With my deck height (.026), and I have not CC'd the heads yet, I am looking at .040 head gasket to get 10.5:1
Anymore then 10.5:1 and you are going to need more then pump gas.
Thread Starter
Drifting
Joined: Apr 2004
Posts: 1,302
Likes: 36
From: Allen Park Mi
Thanks guys,
i was hoping to be over 11 to 1. I'm running all stock componants but the cam... which still needs 10 to 1 to work correctly, and if I ever decide to put the stock 30-30 back in, i wanted the 11.50 to 1 that these motors should have originally had.
thanks
Aaron
i was hoping to be over 11 to 1. I'm running all stock componants but the cam... which still needs 10 to 1 to work correctly, and if I ever decide to put the stock 30-30 back in, i wanted the 11.50 to 1 that these motors should have originally had.
thanks
Aaron
