302 heads
Senior User
Joined: Mar 2004
Posts: 274
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From: MI
Originally Posted by serving_time
so these heads are on 87 and later 5.0 and 5.8, but not crown vic's or marquis. are they on trucks? is there any way to tell them apart if they are on the engine in a wrecking yard?
any idea what comp ratio they are. I think I am aiming for 9 or 9.5. I want to get the most out of this while still using pump gas.
any idea what comp ratio they are. I think I am aiming for 9 or 9.5. I want to get the most out of this while still using pump gas.
They all look the same on the outside all the 5.0 HO s had them so did the trucks as far as I know. Some on the 351s only had some cracking issues.
The combustion chamber volume is the same on all E7s. Dont remember what off the top of my head.
Postmaster
Joined: Dec 2004
Posts: 2,941
Likes: 32
From: Maple Valley, WA
Originally Posted by turbo2256
They all look the same on the outside all the 5.0 HO s had them so did the trucks as far as I know. Some on the 351s only had some cracking issues.
The combustion chamber volume is the same on all E7s. Dont remember what off the top of my head.
The combustion chamber volume is the same on all E7s. Dont remember what off the top of my head.
I believe the combustion chamber size is 64cc's on the E7's and 69cc's from the D8's to the E6's.
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