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Old 01-01-2010, 12:21 AM   #1
58mm of Bliss
PEI330Ci's Avatar
Join Date: Jul 2003
Location: PEI,Canada
Posts: 4,369
My Ride: 330i, 330Ci
M54B30 Specs and Measurments

I figured I should start a thread to house the mountain of details I've learned about the M54B30 engine. If anyone has any verified specs that they would like to share, please comment and I'll work towards adding them below. The list will grow shortly....

Combustion Chamber Volume (Head) = 34cc

Intake valve size = 33mm
Intake valve weight = 45 grams

Exhaust valve size = 30.5mm
Exhaust valve weight = 47 grams

Piston size = 84mm
Piston weight (w/rings) = 313 grams
Piston pin weight = 108 grams
Rod + bearing weight = 602 grams

My Arrow rod/ CP piston combo weighed 926 grams....

Cylinder Head Flow:

Last edited by PEI330Ci; 01-16-2010 at 04:39 AM.
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