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Ring gap


TEACHER

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Anyone know what the ring gap should be for my 4.0 ohv . Adding Paxton about 6 lbs max on ported heads.Or where would a person find that info.
 


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Craig0320

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V8 Engine Swap
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Are you running pump gas or e85 or something to that nature. Pump gas will run hotter cylinder temps but I doubt your rings will hit with 6 pounds of boost.
If you were trying to run 15 psi or something then I would go .020 top and .016 bottom my buddy ran that on a supercharged 302. Just remember the bigger the gap the more blowby.
 
Last edited:

TEACHER

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Thanks, ran them 20 thanks for the reply
 

Craig0320

Well-known member
Supporting Member
Article Contributor
V8 Engine Swap
TRS 20th Anniversary
Joined
Sep 21, 2017
Messages
1,059
Reaction score
104
Points
63
Location
Mississppi
Vehicle Year
1998
Make / Model
Ford
Engine Type
V8
Engine Size
5.0
Transmission
Automatic
2WD / 4WD
4WD
My credo
Break it right the first time. Fix it better the next time.
No problem let us know how everything goes.
 


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