2.3 16v - H23
Manufacturers
2.3 16v - H23

Round Forged Pistons | Wiseco for Honda H23 2.3 L 16v: O 87.89 mm, RV 9.11.5:1, axle 22 mm.
Kit of ARP 8740 cylinder head studs for the Honda H23A four-cylinder (Prelude IV).Brand: ARP Engine: H23A Thread: M12 Grade: 8740
ARP 8740 steel crankshaft main studs for the Honda H22A and H23A four-cylinder engines.Brand: ARP Engine: H22A / H23A 16V Thread: 7/16 in Grade: 8740
The H23 is the 2.3 16V of the Prelude, the larger capacity version of the H22, with which it shares most of its architecture.
This page currently gathers the WISECO and JE PISTONS forged pistons listed for that block, offered in several bore sizes to follow an engine rebored by a machine shop.
A forged piston takes the thermal and mechanical loads a standard cast piston no longer copes with once power goes up: it is the first part to change on a serious build. The other HONDA part families are grouped in the neighbouring engine categories.