BMI Aluminum head specs

Performance mods and Advanced Stroker discussion.
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TJ_STROKER
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Joined: November 11th, 2022, 4:27 pm
Stroker Displacement: 4.7
Vehicle Year: 1997
Vehicle Make: Jeep
Vehicle Model: Wrangler

BMI Aluminum head specs

Post by TJ_STROKER »

Hello everyone, I have a technical query for the most experienced, I am looking for the technical specifications of the BMI aluminum cylinder head, I want to change the valve (Int. 2.02 / Exh. 1.60) and cam, springs in my 4.7 engine
Thanks !!!
:cheers:
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Cheromaniac
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Re: BMI Aluminum head specs

Post by Cheromaniac »

I read somewhere that the BMI head was originally designed by Clifford Performance and sold to Hesco.

https://hesco.us/products/7735/cylinder-heads

Quoted flow numbers are as follows:

Valve lift (in)... 0.1 ... 0.2 ... 0.3 ... 0.4 ... 0.5
Intake flow.... 74.0 134.0 183.0 226.0 255.0
Exhaust flow. 55.0 93.0 117.0 131.0 142.0
1992 XJ 4.6 I6 - 5MT - Stroker build-up, Stroker "recipes" Sold
1995 Mustang GT - 4AT - Modded Sold
2006 Mustang GT - 5MT - Modded Midlife Crisis Car :mrgreen:
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