honda b series pistons..

[welshpug 1,657]

just on the offchance someone here meddles with these as well as xu engines, wondering if anyone knows the valve inclination angles and centres?

 

looking to possibly use a high compression b16/18 oversized piston under an xu 16v cylinder head, drawing a blank so far on these, i know the xu ones, as I've seen them posted here and have a few heads to hand.

[SRDT 175]

It's 28°/28° (56° total) for the Integra Type-R engine:

https://historicdb.fia.com/sites/default/files/car_attachment/1486676401/homologation_form_number_5590_group_a.pdf

https://historicdb.fia.com/sites/default/files/car_attachment/1486676401/homologation_form_number_313_group_f.pdf

[B1ack_Mi16 67]

I put K20/K24 Wisecos in the 2.2 T16 engine without touching the valve pockets from Wiseco.

[welshpug 1,657]

close, but not quite the same Kristian       you are at 88mm bore right?   I'm looking at 83mm hence the oversize B series.

 

it seems like 35/30mm valve diameters in the K20, 36/31 in a K24, the B is 33/28.

 

XU10J4RS 34/29.6   (J4R, and also Mi16 iirc, 34.6/29.5)

 

 

 

 

Baptiste, huge thanks!!     didn't think I would have a French guy answer a Japanese car question on a French car forum so quickly