compression estimate
Thread Starter
Safety Car
Joined: May 2005
Posts: 4,176
Likes: 7
From: Jennings LA
compression estimate
my 71 454 has 113cc oval open port heads, 820's
it was rebuilt and the builder used forged flat top pistons. what should my compression be? he said he thought around 10 to 1
it was rebuilt and the builder used forged flat top pistons. what should my compression be? he said he thought around 10 to 1
Le Mans Master
Joined: Feb 2001
Posts: 6,317
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From: Ocala FL
The ORIGINAL and bestest
Joined: Oct 2000
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From: Toronto Ontario
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Originally Posted by Procrastination Racing
I have :
4.155 bore
3.750 stroke
8 cylinders
70 cc heads
flat top pistons
0.039 gasket
which gives me a CR of 11.6:1 while my builder told me it was more like 10.75:1.
