[Nachtmensch]

K24a2 would be better.

Honda K engine - Wikipedia, the free encyclopedia

Increased intake flow
* Intake valve + 1 mm oversize
* Intake cam High lift lobe with 0.9 mm more lift and 12 degrees more duration
* Throttle body increased from 60-64mm
* Radius on some intake pipes increased from 70-80mm

Increased exhaust flow
* Exhaust Head pipe increased frm 60-65mm
* Higher flow catalytic converter
* Main (single) exhaust pipe increased from 54-57mm
* Rear (twin) pipes increased in diameter from 42.5 to 45mm

Block improvements
* Additional air passages in crankcase for reduced pumping losses

Other
* Stronger conrods
* New crankshaft with more counterbalance weight
* Revised pistons with more valve-piston clearance