accord9192

i have looked around and noticed that a lot of people are having trouble finding parts for the f20b. so i done a lil reshearch and found some info and you all can correct me if im wrong.
F20B shares...

Intake 34mm & exhuast 29mm Valves with
H23A1
F22
F23

Pistons 85mm
F22

Head Gasket
F22 Bore: 86mm Thickness: .026

Main Bearings width .784
Any H/F series

Rod Bearing width .762
H22A4
H22A
H23A
H23A1
F22

Main Journal Diameter 55mm
H22A4
H23a
F23

Rod Journal Diameter 1.771
F23

Wrist Pin Diameter .866
Any H/F series

Deck Height 8.643
All H/F series

BE Bore 1.890
F23

If you would like to add any info please feel free. this is info i gathered from other sites and just put it togather for others to have some kind of referance of the F20B to the H/F series motors.

hondamark35

i think the rod journal diameter is different from the F23. i'll measure them when i get a chance.

accord9192

thats kool i just went by what i had in front of me.

jr_deleon

iTrader: (1)

The F20B does not share the same piston as an F22. Different comp height. It has 30mm exhaust valves which is the same as an H22. B16 sized rod bearings and rod journals. No internal oil squirters or external oil cooler. Inside the block it does have a 17mm head bolt plugging the feed for an oil jet system, but it has no provisions with which to bolt an oil jet system in the block. Shares oil pans with an F23 and a unique oil strainer. Do not use an H22 oil strainer on this motor because it is too long and you'll starve the motor (because it will sit right against the bottom of the oil pan) Not to mention that it has a unique head gasket not shared with any of the other motors (if you had them both side to side and compared you'll see why).